Avoid these cars and save $1,000s in repair costs.
On the hunt for a used car? Part of getting a safe, reliable vehicle is knowing how to avoid a lemon. But how do you know which is which?
Don’t worry – we’ve done the hard work for you, sifting through more than 6.4 million diagnostic codes to identify the 10 worst used car buys of 2024. Stay away from these vehicles, and you’ll likely skip $1,000s in avoidable repair costs.
How did we choose the vehicles on this list?
At FIXD, we know check engine lights. So it only makes sense that this is where we should start. We collected and analyzed “check engine” error data from more than 3 million vehicles to find out which cars had the most problems.
Then, we scoured hundreds of thousands of surveys – real information from real owners just like you – to get a first-hand account of which cars were reliable… and which weren’t.
But that still wasn’t enough. We wanted to make sure that you have all the information you need to make a smart, informed decision.
So we consulted our in-house team of professional mechanics – the folks who take calls on our FIXD Mechanic Hotline every day. These mechanics gave their thoughts on each car on this list, noting the worst and most frequent problems drivers like you experience.
What is FIXD?
FIXD is a pocket-sized device that can practically replace your mechanic.
By wirelessly connecting your car’s data port to your smartphone, FIXD takes the guesswork out of diagnosing check engine lights, saving you thousands in diagnostic fees and avoidable maintenance costs.
FIXD works just like your mechanic’s expensive scan tool, but without the mechanic. If you can turn on your car, then you can use FIXD to pinpoint problems yourself in seconds.
So… what are the 10 worst used cars to buy in 2024?
10. Chevrolet Trailblazer (2002-2008)
| FIXD Reliability Score 2.5/10 |
Average Survey Score 8/10 |
Total Score 5.3/10 |
The Chevrolet Trailblazer – though once popular with families and outdoor enthusiasts because of its capable engine and roomy interior – comes in at #10 on our list of worst used car buys of 2024. Despite its initial appeal, this midsize SUV has been plagued by a number of reliability issues, ranging from transmission problems to failed AC blowers, that make it a risky choice for anyone in the used car market.
Total number of “check engine” codes read by FIXD: 74,169
Average vehicle mileage: 169,980
Most common error codes detected:
- P0014, Exhaust Camshaft Timing Over-Advanced Bank 1 – This SEVERE IMPACT error code, which indicates low oil or low oil pressure, can lead to permanent engine damage if you continue driving. Cost to repair: Up to $4,000
- P0140, Oxygen Sensor Malfunction – a poorly functioning oxygen sensor can make your car run roughly. You may also notice decreased power and fuel efficiency until you replace the oxygen sensor. Cost to repair: Up to $168
- P0153, Oxygen Sensor Malfunction – this code affects the oxygen sensor upstream the catalytic converter, and produces the same symptoms as P0140. Cost to repair: Up to $168
Most common driver complaints:
- Erratic fuel gauge operation – fuel level sensors on higher-mileage Trailblazers commonly fail, causing the fuel gauge to operate inconsistently. Typically, resolving the issue involves replacing the fuel pump assembly. Cost to repair: Up to $952
- Faulty blower motor resistor – Trailblazers often have problems with faulty AC blower motor resistors, which can cause the blower to become partially or totally inoperable. Cost to repair: Up to $159
- Worn valve seat – engine misfires can occur when valve seats wear out, which can severely damage your engine. In many cases, fixing the problem involves replacing the cylinder head. Cost to repair: Up to $4,856
What do the experts at the FIXD Mechanic Hotline say?
Chevrolet Trailblazers are well known for transmission issues, ranging from shifting problems to complete transmission failure. Drivers also report problems with the instrument cluster, such as inaccurate readings on the speedometer and other gauges. Other common problems include water pump failures, radiator leaks, and fan clutch issues.
9. Ford Focus (2000-2018)
| FIXD Reliability Score 3.3/10 |
Average Survey Score 7/10 |
Total Score 5.2/10 |
U.S. drivers quickly embraced the Ford Focus as a fuel-efficient compact that was actually fun to drive. This model replaced the aging Escort, which had served as Ford’s flagship compact model since 1981.
The allure didn’t last for many Focus buyers, though. Persistent issues, especially with its automatic transmission, electrical, and powertrain systems, marred the model’s production history
While the Focus offers impressive fuel economy and agile handling, its many mechanical faults have landed this vehicle in the #9 slot on this list.
Total number of “check engine” codes read by FIXD: 114,637
Average vehicle mileage: 132,411
Most common error codes detected:
- P0420, Catalyst System Efficiency Below Threshold – Extended driving with this MODERATE IMPACT error code can lead to engine damage. Possible fixes range from a new oxygen sensor to complete catalytic converter replacement. Cost to repair: Up to $2,400
- P1450, Fuel Tank Vacuum Error – this code indicates that your Focus’s fuel system is having a difficult time getting fuel from the tank to the engine. On the Ford Focus, the fix for this MODERATE IMPACT problem often involves a new purge valve. Cost to repair: Up to $173
- P0128, Coolant Thermostat Temperature Below Operating Temperature – typically, this indicates that your car’s thermostat is stuck open or the coolant temperature sensor has failed. While this problem usually isn’t an emergency, it is important to have repairs completed as soon as possible. Cost to repair: Up to $260
Most common driver complaints:
- Worn/broken motor mounts – motor mounts secure the engine to the frame of the car, keep it from moving around, and prevent vibrations that contribute to a loud, rough ride. With age, the flexible parts of these mounts can deteriorate, causing the mount to break. This SEVERE IMPACT issue can cause extensive damage to your car’s engine. Cost to repair: Up to $256
- Engine hesitation, “stumbling,” or loss of power – Ford Focus owners frequently report issues with acceleration and maintaining speed. Often, the engine hesitates before accelerating or loses a significant amount of power. Typically, fixing the issue involves replacing the EGR valve and sensor. Cost to repair: Up to $253
- “Shimmy” caused by warped brake rotors – Ford Focuses are notorious for developing warped brake rotors, which can cause your car to shimmy as you apply the brakes. Warped rotors can also cause premature, uneven wear on your car’s brake pads, which reduces their lifespan. Typically, both rotors and brakes must be replaced to correct the issue. Cost to repair: Up to $700
What do the experts at the FIXD Mechanic Hotline say?
On top of the issues noted above, the dual-clutch version of the Ford Focus – built from 2012 to 2016 – faced criticism for problems such as shuddering, slipping, and difficulty shifting. Focus models made during this timeframe also tend to have fuel pump issues, leading to poor engine performance and stalling.
Earlier models, from 2000 to about 2011, also experienced premature wear on suspension and steering components, causing excessive tire wear and uneven tire alignment. Owners of these Focuses also reported clutch issues, including premature wear and failure.
8. GMC Envoy (2002-2009)
| FIXD Reliability Score 3/10 |
Average Survey Score 7/10 |
Total Score 5/10 |
In its time, the GMC Envoy was a strong contender in the mid-size SUV market. Unfortunately, this vehicle’s numerous reliability problems, coupled with less than desirable fuel efficiency and lackluster safety features, have landed the Envoy in the #8 spot on our list of worst used car buys in 2024.
Total number of “check engine” codes read by FIXD: 29,878
Average vehicle mileage: 176,383
Most common error codes detected:
- P0420, Catalyst System Efficiency Below Threshold – Extended driving with this MODERATE IMPACT error code can lead to engine damage. Possible fixes range from a new oxygen sensor to complete catalytic converter replacement. Cost to repair: Up to $2,400
- P0128, Coolant Thermostat Temperature Below Operating Temperature – typically, this indicates that your car’s thermostat is stuck open or the coolant temperature sensor has failed. While this problem usually isn’t an emergency, it is important to have repairs completed as soon as possible. Cost to repair: Up to $260
- P0171, Bank 1 Has Too Much Air/Not Enough Fuel – The P0171 code indicates that your car’s fuel-to-air ratio is too lean, which can decrease fuel efficiency and even cause damage to internal engine parts. Possible fixes for this MEDIUM IMPACT issue include oxygen sensor replacement, Cost to repair: Up to $1,700
Most common driver complaints:
- Rear spring air compressor failure – The air compressor for the rear springs of the GMC Envoy can fail, causing the back half of your car to sit lower than the front half. Typically, the air compressor must be replaced to correct this issue. Cost to repair: Up to $487
- Fuel level sensor failure – the fuel level sensor, located in the Envoy’s gas tank, can cause the fuel gauge to operate erratically when faulty. The fuel pump assembly must usually be replaced to fix the problem. Cost to repair: Up to $947
- Loss of blower motor power – the car’s HVAC blower motor resistor may fail to operate at one or all speeds. Fixing the problem generally involves replacing the blower resistor. Cost to repair: Up to $159
What do the experts at the FIXD Mechanic Hotline say?
GMC Envoys also commonly suffer from transmission issues, which include slipping, rough shifting, and occasionally, full transmission failure. As noted above, the air suspension system also gives many drivers problems – in addition to air compressor failures, Envoys frequently develop leaks in air suspension components.
7. Infiniti G35 (2003-2008)
| FIXD Reliability Score 1.7/10 |
Average Survey Score 8/10 |
Total Score 4.8/10 |
When the Infiniti G35 debuted, critics and consumers alike praised the car for its sleek design and engaging performance. Today, this model takes the number seven spot on our “worst used vehicles to buy” list. Premature wear of suspension components, oil consumption issues, unreliable electronics, and many other problems have contributed to a high cost of ownership for G35 drivers.
Total number of “check engine” codes read by FIXD: 28,021
Average vehicle mileage: 158,585
Most common error codes detected:
- P0420, Catalyst System Efficiency Below Threshold – Extended driving with this MODERATE IMPACT error code can lead to engine damage. Possible fixes range from a new oxygen sensor to complete catalytic converter replacement. Cost to repair: Up to $2,400
- P0014, Exhaust Camshaft Timing Over-Advanced Bank 1 – This SEVERE IMPACT error code, which indicates low oil or low oil pressure, can lead to permanent engine damage if you continue driving. Cost to repair: Up to $4,000
- P0300, Random/Multiple Cylinder Misfire – while bad spark plugs or spark plug wires may be the most likely culprits, several other common problems can also trigger this SEVERE IMPACT error code. Continuing to drive can cause extensive damage to your car’s engine. Cost to repair: Up to $1,900
Most common driver complaints:
- Crankshaft angle/camshaft position sensor failure – when this sensor fails, it can cause several high-impact driveability problems, such as cutting out, stalling, and poor acceleration. Cost to repair: Up to $273
- Failed brake light switch – A failed brake light switch prevents the brake lights from illuminating when the brake pedal is pressed. Cost to repair: Up to $118
- Timing chain rattling – Infiniti G35 owners commonly complain of a rattling sound coming from the timing chain. This could be an indication that the timing belt will fail soon. Replacing the timing chain is sometimes required to resolve the issue. Cost to repair: Up to $1,541
What do the experts at the FIXD Mechanic Hotline say?
Drivers commonly report overheating problems stemming from radiator failures and cooling system issues. Window motor and regulator failures are also common. Watch for premature wear on suspension components and issues with camshaft position sensors – the latter can lead to problems with engine performance and starting.
6. Mercury Mountaineer (2001-2010)
| FIXD Reliability Score 2.4/10 |
Average Survey Score 7/10 |
Total Score 4.7/10 |
The appearance of the Mercury Mountaineer, an SUV with a spacious interior and impressive performance, was generally well-received by car buyers in the early 2000s. The model offered a roomy alternative to the “crossover” SUVs that were beginning to show up in the U.S. market.
As time wore on, though, the Mountaineer revealed several flaws that landed it in our #6 spot of worst used cars to buy in 2024. These include transmission failures, electrical system problems, and plastic intake manifold crafts that contribute to coolant leaks and overheating engines.
Average number of “check engine” codes read by FIXD: 16,880
Average vehicle mileage: 210,000
Most common error codes detected:
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- P0443, Evaporative Emission Control System Purge Control Valve Circuit Malfunction – although you might get away with driving for a while longer, this error code severely impacts the driveability of your Mercury Mountaineer. Common symptoms include engine stalling, rattling noises coming from the engine, and decreased fuel efficiency. Continuing to drive for a long time without fixing the issue could damage your engine’s internal components. Cost to repair: Up to $172
- P0161, Oxygen Sensor Heater Circuit Malfunction (Bank 2 Sensor 2) – a faulty or shorted oxygen sensor is the most common culprit for this error code, which is typically accompanied by rough idling, loss of engine power, or stalling. Occasionally, though, fixing the problem involves replacing the catalytic converter. Cost to repair: Up to $2,400
- P0141, Oxygen Sensor Heater Circuit malfunction (Bank 1 Sensor 2) – this error code indicates a similar problem as P0161, but affects the downstream oxygen sensor. Cost to repair: Up to $2,400
Most common driver complaints:
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- Heater stuck on highest setting – this issue typically comes from a failed heater blend door/actuator, which prevents the temperature control from working properly. Typically, fixing this issue requires replacement of the heater box. Cost to repair: Up to $1,390
- Problems with 5-speed automatic transmission – Mountaineer owners report a range of problems related to the car’s automatic transmission, particularly in cars made before March 2022. Possible fixes include fluid leak repairs, transmission software updates, and complete transmission rebuild/replacement. Cost to repair: Up to $1,487
- Cracked intake manifold – The Mercury Mountaineer 4.6L V8 model notoriously overheats, even under normal driving circumstances. This is often caused by a cracked intake manifold, which permits coolant to leak. Unfortunately, fixing the problem involves replacing the intake manifold. Cost to repair: Up to $1,200
What do the experts at the FIXD Mechanic Hotline say?
Through thousands of scans and surveys, we’ve received countless reports of automatic transmission problems, including rough shifting, slipping, and complete transmission failures. Rear axle seal leaks are also common, as are premature wear on ball joints and control arms in the front suspension.
Timing chain tensioner problems, which can contribute to extensive engine damage, are also common.
Mountaineer owners who opted for the 4.6-liter V8 model report frequent spark plug blowouts and fuel pump issues.
5. Pontiac Grand Prix (2003-2008)
| FIXD Reliability Score 2.2/10 |
Average Survey Score 7/10 |
Total Score 4.6/10 |
In its time, consumers loved the Pontiac Grand Prix for its sleek, sporty design and impressive performance scores. As a used car, though, it is our number four pick for worst choices of 2024. As with many older cars, the Grand Prix is besieged by transmission problems and electrical system woes. Drivers also commonly complain about expensive power steering repairs.
Average number of “check engine” codes read by FIXD: 31.723
Average vehicle mileage: 176,736
Most common error codes detected:
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- P1125, Throttle Position Sensor Error – this MODERATE IMPACT problem code indicates a problem with the sensors communicating between the throttle and the accelerator pedal. Symptoms can include rough idling, jerky acceleration, engine stalling, and several others. Cost to repair: Up to $217
- P2138, Turbocharger/Supercharger Boost Sensor A Circuit High – this MODERATE IMPACT error can result in increased fuel consumption, lack of boost from the turbocharger/supercharger, and overall decreased engine performance. We do not recommend extended driving until this issue is resolved.
There are several possible causes of P2138, including brake booster pressure censure failure, exhaust leak, powertrain control module (PCM) failure, turbocharger/supercharger failure, and general wiring issues. Cost to repair: Up to $2,400
- P2228, Throttle/Pedal Sensor/Switch C Circuit High – this error code indicates a similar problem as P2138, but effects switch A instead of switch A. Cost to repair: Up to $2,400
Most common driver complaints:
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- Transmission pressure control solenoid failure – failure of this solenoid can result in erratic shifting, which can make driving dangerous. Replacing the transmission pressure control solenoid may involve partially disassembling the transmission. Cost to repair: Up to $500
- Engine oil and coolant leaks – Pontiac Grand Prix owners report oil and coolant leaks caused by a cracked intake manifold. Replacing the intake manifold gasket typically corrects the issue. – Cost to repair: Up to $1,487
- Fuel pump failure – failure of the car’s fuel pump will prevent the car from operating. Cost to repair: Up to $1,661
What do the experts at the FIXD Mechanic Hotline say?
As noted above, transmission problems are common in the Pontiac Grand Prix. Intake manifold cracks are also big problems, because they can lead to engine overheating and malfunction. Drivers also frequently report catalytic converter failures.
Some drivers have also noted issues with the steering intermediate shaft, which can cause vehicle handling difficulties.
4. Buick LeSabre (2001-2005)
| FIXD Reliability Score 2.0/10 |
Average Survey Score 7/10 |
Total Score 4.5/10 |
American drivers initially flocked to the Buick Lesabre for its spacious interior and comfortable, smooth ride. The car seemed destined to become a symbol of American elegance met with a healthy dose of practicality. Still, the years were not kind to the beloved LeSabre. Intake manifold cracks, engine stalling, and misfires, as well as a host of other problems, led to the LeSabre’s reputation as an expensive car to maintain. These problems have landed the Buick LeSabre in our number three spot in this list.
Average number of “check engine” codes detected by FIXD: 16,989
Average vehicle mileage: 155,325
Most common error codes detected by FIXD:
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- P0449, Evaporative System Vent Circuit Control Malfunction – although this problem does not typically require immediate repairs, it is important to fix the issue as soon as possible to avoid the constant escape of fuel fumes into the atmosphere. Symptoms can include decreased performance and fuel economy, as well as a persistent gasoline smell. Correcting the problem usually involves replacing the EVAP vent or purge control valve. Cost to repair: Up to $200
- P0420, Catalyst System Efficiency Below Threshold – Extended driving with this MODERATE IMPACT error code can lead to engine damage. Possible fixes range from a new oxygen sensor to complete catalytic converter replacement. Cost to repair: Up to $2,400
- P0300, Random/Multiple Cylinder Misfire – while bad spark plugs or spark plug wires may be the most likely culprits, several other common problems can also trigger this SEVERE IMPACT error code. Continuing to drive can cause extensive damage to your car’s engine. Cost to repair: Up to $1,900
Most common driver complaints:
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- Erratic fuel gauge operation – a faulty fuel gauge can operate unpredictably and read fuel levels incorrectly. In some LeSabre models, replacing the gauge may require replacing the fuel pump assembly. Cost to repair: Up to $726
- Difficult/erratic shifting – the transmission pressure control solenoid commonly fails, causing inconsistent shifting. Your LeSabre’s transmission may have to be partially disassembled to replace the pressure control solenoid. Cost to repair: Up to $500
- Engine stalling – LeSabre owners commonly report engine stalls caused by failed mass air flow or crankshaft position sensors. Replacing the mass air flow/crankshaft position sensor typically corrects the issue. Cost to repair: Up to $426
What do the experts at the FIXD Mechanic Hotline say?
Like the Pontiac Grand Prix, the Buick LeSabre is well known among mechanics for its coolant leaks from the intake manifold gasket. Intermittent stalling, which can be caused by faulty mass air flow sensors, crankshaft position sensors, or fuel system issues, is also a common problem.
Drivers also report frequent anti-lock brake (ABS) problems, steering issues, and catalytic converter malfunctions.
3. Cadillac STS (2005-2011)
| FIXD Reliability Score 2.7/10 |
Average Survey Score 6/10 |
Total Score 4.4/10 |
The Cadillac STS, once enjoyed for its blend of American luxury and performance engineering, now exists as a cautionary tale for used car buyers. There are numerous problems that overshadow the DTD’s initial allure, such as unreliable electronics, engine malfunctions, and transmission problems. Power steering issues also plague the STS, making it less desirable than many other used vehicles in the American luxury class.
Average number of “check engine” codes detected by FIXD: 11,712
Average vehicle mileage: 180,000
Most common error codes detected:
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- P0206, Injector/Cylinder Open – Cylinder 6 – this error code, familiar to many Cadillac STS owners, indicates a problem with engine cylinder 6’s fuel injector. This MEDIUM IMPACT problem can cause your car to run roughly or fail to start. Typically, fixing the issue requires replacing the fuel cylinder injector. Cost to repair: Up to $600
- P0306, Cylinder 6 Misfire Detected – Extended driving with this SEVERE IMPACT error code can cause extensive engine damage. In some cases, a new set of spark plugs will fix the issue; however, there are also other possible culprits, such as a bad fuel injector or fuel pump. Cost to repair: Up to $1,900
- P0430, Catalyst System Efficiency Below Threshold (Bank 2) – this MEDIUM SEVERITY code indicates that your STS’s catalytic converter is not operating efficiently. A failed oxygen sensor is typically the culprit, but in some cases, the catalytic converter may have to be replaced to resolve the issue. Cost to repair: Up to $2,400
Most common driver complaints:
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- Multiple error codes – the Cadillac STS is known for generating multiple “check engine” codes, which can make diagnosing the problem difficult. Drivers report several codes sent from their cars to their FIXD devices. Cost to repair: Unknown
- Turn signal bulb/daytime running bulb premature failure – the turn signal and daytime running bulbs in the Cadillac STS tend to burn out prematurely, creating a potential safety hazard in low-visibility daytime driving conditions. Although this sounds like a minor fix, these bulbs are reportedly difficult to replace – making this an unusually expensive repair. Cost to repair: Up to $328
- Power steering problems – STS owners commonly report power steering fluid leaks, which typically stems from issues with the power steering hoses or the steering rack. Cost to repair: Up to $1,508
What do the experts at the FIXD Mechanic Hotline say?
The Cadillac STS is known for a wide range of flaws that can lead to extensive (and expensive) repairs. In addition to the issues noted above, oil leaks temming from the valve cover gasket and oil filter adapter are also common. STS owners report higher-than-normal oil consumption over the life of the vehicle.
The STS is also plagued by electrical system failures, engine stalling, and problems with the heating/cooling system.
Owners also reported moisture accumulating in the headlight assemblies, which could account for the premature failure of daytime running bulbs and other safety lights.
2. BMW 325i (2001-2006)
| FIXD Reliability Score 1.5/10 |
Average Survey Score 7/10 |
Total Score 4.3/10 |
The BMW 3-Series vehicles rose to fame as the quintessential “luxury cars” of the 1980s and 90s, thanks to their popularity as status symbols among young urban professionals. Unfortunately, although the 325i’s popularity continued into the 2000s, this model failed to live up to its brand in terms of reliability. Its poor reliability scores and high cost of ownership have earned the 325i the number five spot on our “worst of” list.
Average number of “check engine” codes read by FIXD: 5,906
Average vehicle mileage: 234,000
Most common error codes detected:
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- P0174, Fuel System Too Lean (Bank 2) – the car’s diagnostic system has detected that the engine’s air-to-fuel ratio is too high. This MEDIUM IMPACT issue can result in irreversible engine damage if left unfixed. Cost to repair: Up to $1,700
- P0171, Fuel System Too Lean (Bank 1) – this issue is identical to P0174, but affects bank 1 rather than Bank 2. Cost to repair: Up to $1,700
- P0300, Random/Multiple Cylinder Misfire – while bad spark plugs or spark plug wires may be the most likely culprits, several other common problems can also trigger this SEVERE IMPACT error code. Continuing to drive can cause extensive damage to your car’s engine. Cost to repair: Up to $1,900
Most common driver complaints:
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- Burning oil smell – BMW 325is are notorious for valve cover gasket leaks, which allow oil to drip onto the engine block. The result? A foul-smelling burnt oil odor coming from the engine compartment. Cost to repair: Up to $487
- Blower final stage fan resistor failure – this problem can cause several issues with the heater fan. It may randomly switch speeds, continue running after the car is shut off, or not run at all. Cost to repair: Up to $389
- Side door window regulator failure – the side door regulators on BMW 325is commonly fail, which prevents the window from raising or lowering. In some cases, the window glass may fall into the door. Cost to repair: Up to $447
What do the experts at the FIXD Mechanic Hotline say?
While oil leaks from the valve cover gasket and oil filter adapter are some of the most common problems with used BMW 325is, power steering fluid leaks come in a close second. Owners also report interior trim pieces coming loose, extensive electrical problems, and steering rack issues are also common.
1. Cadillac Deville (2001-2005)
| FIXD Reliability Score 1/10 |
Average Survey Score 7/10 |
Total Score 4/10 |
Finally, we come to the end of our list of worst used cars to buy in 2024. The dubious distinction of the number 1 spot goes to the Cadillac Deville – a car once prized as a symbol of luxury and prestige. While the Deville was known for its roomy interior and comfort-driven features when it was released, it is now better known for a range of mechanical and electrical problems.
If you’re seeking reliability, look elsewhere – the Cadillac Deville performed the worst of any of the 100 vehicles we tracked. High ownership costs and poor reliability scores make the Deville among the least-desireable choices in the used car market.
Average number of “check engine” codes read by FIXD: 18,034
Average vehicle mileage: 110,833
Most common error codes detected:
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- P0741, Torque Converter Clutch Solenoid Circuit Performance/Stuck Off –.this error code is commonly caused by a faulty torque converter, although various transmission issues can also be culprits. Cost to repair: Up to $3,105
- P0300, Random/Multiple Cylinder Misfire – while bad spark plugs or spark plug wires may be the most likely culprits, several other common problems can also trigger this SEVERE IMPACT error code. Continuing to drive can cause extensive damage to your car’s engine. Cost to repair: Up to $1,900
- P0410, Secondary Air Injection System Malfunction – it’s generally safe to keep driving for a while, but you will need to have the problem repaired as soon as possible. Typically, replacing a fuse solves the problem, but in some cases, it may be necessary to replace the air pump. Cost to repair: Up to $3,105
Most common driver complaints:
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- Failing power window regulator failure – window regulators in the Cadillac Deville frequently fail, causing the window glass to fall into the door. Fixing this problem involves replacing the faulty window regulator. Cost to repair: Up to $544
- Failed temperature mode door actuator – this problem can cause the heating and AC unit to function incorrectly. For example, the car may heat the passenger side while cooling the driver side. Replacing the mode door actuator typically solves the problem; however, it’s not an inexpensive fix. Cost to repair: Up to $1006
- Oil leaks from lower engine area – Cadillac Deville engines are known for developing leaks from the lower crankcase of the engine box. The oil pan gasket is among the most likely culprits; however, the engine must be removed to perform this replacement. Cost to repair: Up to $1,202
What do the experts at the FIXD Mechanic Hotline say?
As noted above, oil leaks remain among the most common problems with Cadillac Devilles. In addition, air suspension shocks and compressors frequently fail, so be prepared to invest $1,000s in your suspension if you buy a used Deville. Owners also consistently report faulty door locks, instrument cluster malfunctions, and even failed head gaskets.
Don’t buy a used car until you have FIXD!
FIXD is your must-have companion when you are shopping for a used car. Don’t trust the owner or dealer to tell you everything you need to know – FIXD gives you any car’s health information so you can make an informed purchase.
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- Find out what that check engine light means before you buy – that light can mean over 7,000 different things, ranging from a loose gas cap to complete engine failure.
- Uncover hidden problems (cleared error codes) the owner hopes you won’t notice.
- Instantly get full car history reports for any used car – right in your FIXD app.
Plus, once you’ve chosen your used car, FIXD will help you keep your ride in great shape… and save you thousands of dollars in diagnostic, repair, and maintenance costs.
Join the more than 2+ million drivers who depend on FIXD to help keep their cars in top shape every day!
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Step 1: Plug your FIXD scanner into your car. Step 2: Pair your smartphone and FIXD scanner via Bluetooth. Step 3: Open the FIXD app on your Android or Apple smartphone. |
FIXD doesn’t just save you time, money, and headaches when you’re shopping for a used car – it’s your best friend when it comes to maintaining, repairing, and keeping your car in top condition.
For example, you can always call the FIXD Mechanic Hotline during business hours. An expert mechanic will walk you through repairs, review shop estimates, answer questions about your car, and much more.
You also get plenty of other tools to help you save money and time on car ownership, including:
| No More Check Engine Light Anxiety When a check engine light pops up on your dashboard, there’s no need to panic. FIXD can diagnose that light in seconds – right from your car. You’ll never have to pay a mechanic’s $300 diagnostic fee again. |
Predict Future Issues It’s not enough to find hidden problems your car already has. You need to know which repairs are most likely in the future, and how much they’ll cost. This helps you decide if a used car is a good bye in the long run. |
| Know if it’s Safe to Drive FIXD doesn’t just tell you what your check engine light means… it tells you how severe the problem is. That way, you know if it’s okay to keep driving, or if you need to pull over immediately. This can help prevent tearing up your car’s engine, transmission, and other critical components, which can result in $1000s in avoidable repairs. |
Know What You Should Pay for Car Repairs Some mechanics take advantage of drivers who aren’t “car people” by making up repairs and inflating costs to increase their own profits. FIXD gives you an estimated cost for your repairs, so you’ll know what you should pay before you take your car to the shop. That way, you know you’ll never get ripped off by a shady mechanic. |
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Costing less than $30, it’s being called, “this year’s hottest car tech gadget” on many of the big name sites.
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Frequently Asked Questions
FIXD works with all gas-powered cars, trucks, and SUVS made after 1995, and all passenger diesel vehicles made after 2007. It can read over 7,000 check engine codes, as well as ABS and brakes, airbag, battery, wheels and tires, and many more.
Yes. FIXD gives you explanations of more than 7,000 check engine light codes, in simple terms everyone can understand.
Yes. The free FIXD app is compatible with both iPhones and Android smartphones.
Yes! Right now, we’ve extended our 67% off sale to make it affordable to get FIXD for yourself and your loved ones. Right now, you can get FIXD for $19.99 instead of the usual $59.99. This sale won’t last much longer, though.
At FIXD, our mission is to make car ownership as simple, easy, and affordable as possible. Our research team utilizes the latest automotive data and insights to create tools and resources that help drivers get peace of mind and save money over the life of their car.
