Top Makes and Models with DTC P0446

Short-term driving with Code P0446—Evaporative Emission Control System Vent Control Circuit Malfunction is okay. But repairs should happen soon to prevent more damage. Numerous Nissan, Chevrolet, Toyota, Ford, and GMC models are most vulnerable to P0446 codes, but other vehicles are at risk.

David Goldberg
January 24, 2025

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Top 10 Most Affected Makes

Rank	Make	Low	Moderate	High
1	Nissan	Frontier, Pathfinder, Sentra, Xterra, Maxima, Murano, Versa, Rogue, Titan	N/A	Altima
2	Chevrolet	Tahoe, Cobalt, Malibu, Suburban, Camaro, Traverse, Cruze, Sonic, Silverado 2500, Trailblazer	Equinox, Colorado, Avalanche	Silverado 1500, Impala
3	Toyota	Tundra, Avalon	Highlander, 4Runner, Tacoma, Prius, Sienna, RAV4, Sequoia	Camry, Corolla
4	Ford	F-250, Escape, Ranger, Fusion, F-350, Focus, Expedition, Edge, Taurus, Explorer, Fiesta	Mustang	F-150
5	GMC	Terrain, Acadia, Envoy	Yukon	Sierra
6	Buick	LeSabre, Lacrosse, Enclave	N/A	N/A
7	Cadillac	Escalade, STS, DeVille, SRX, CTS	N/A	N/A
8	Dodge	Charger, Dakota, Durango	Ram 1500	N/A
9	Pontiac	Grand Prix, G6	N/A	N/A
10	Mercury	Mountaineer	N/A	N/A

Code P0446-related issues impact vehicles from a wide array of manufacturers—SUVs, trucks, and passenger cars are all vulnerable. FIXD sensor data reveal that vehicles most likely to experience a P0446 code are:

Below is an expanded look at how a P0446 code impacts numerous makes and models. This breakdown covers occurrence rates by model year (2000-2023) and separates the frequency into low, moderate, or high levels. At the bottom of the barrel are the 20 vehicles listed above.

What is the P0446 Code?

Man fixing a vehicle at the side of the road — *This AI-generated image may not accurately represent all aspects of the intended subjects whether a person or object.*

A P0446 Engine Code | Evaporative Emission Control System Vent Control Circuit Malfunction signals a problem with the system that prevents fuel vapors from escaping into the atmosphere. The engine control module (ECM) detected either a short circuit in the vent control valve’s electrical system or a leak in the evaporative emission control (EVAP) system, which captures and recycles fuel vapors back to the engine instead of releasing them into the air.

Read the complete article on P0446 Engine Code | Evaporative Emission Control System Vent Control Circuit Malfunction to discover the trouble areas to consider. This resource also offers tips on diagnosing the problem and what a DIYer can do to tackle a P0446 code independently (and when not to).

Top Models for P0446 Codes

Here’s a look at the makes and models most likely to have P0446 codes, according to FIXD sensor data. The absence of a model year ranking indicates no P0446 code was detected among the analyzed years, insufficient data, or the model wasn’t in production.

Acura

Make + Model	Low	Moderate	High
Acura MDX	2007	N/A	N/A

BMW

Make + Model	Low	Moderate	High
BMW 325i	2003, 2004, 2005	N/A	N/A
BMW X5	2001, 2013	N/A	N/A

Buick

Make + Model	Low	Moderate	High
Buick Enclave	2008, 2010, 2011, 2012, 2014, 2015, 2016, 2017, 2019	2018	N/A
Buick LaCrosse	2009, 2010, 2011, 2012, 2013, 2014, 2018	2005, 2008	2006, 2007
Buick LeSabre	2004, 2005	2001, 2002	2003

Cadillac

Make + Model	Low	Moderate	High
Cadillac Escalade	2002, 2004, 2005, 2006, 2007, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017	2003	2008
Cadillac CTS	2003, 2004, 2007, 2008, 2009, 2012, 2014	2005	N/A
Cadillac DeVille	2001, 2004	2002, 2003, 2005	N/A
Cadillac SRX	2005, 2006, 2010, 2011, 2012, 2014, 2015, 2016	2004	N/A
Cadillac STS	2006	N/A	2005

Chevrolet

Make + Model	Low	Moderate	High
Chevrolet Avalanche	2002, 2003, 2005, 2006, 2010, 2011, 2012, 2013	2004, 2008	2007, 2009
Chevrolet Camaro	2001, 2002, 2012, 2013, 2014, 2015, 2016, 2018, 2019, 2020	2011, 2017	2010
Chevrolet Cobalt	2008, 2009	2010	2005, 2006, 2007
Chevrolet Colorado	2007, 2008, 2009, 2010, 2011, 2012, 2015, 2016, 2017, 2018, 2019, 2020, 2021	2004	2005, 2006
Chevrolet Cruze	2011, 2012, 2013, 2014, 2015, 2018, 2019	2016, 2017	N/A
Chevrolet Equinox	2007, 2008, 2009, 2013, 2014, 2015, 2016, 2017, 2018, 2019	2006, 2010, 2011, 2012	2005
Chevrolet Impala	2001, 2002, 2003, 2004, 2005, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2020	2007, 2008	2006
Chevrolet Malibu	2002, 2004, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2020	2001, 2003, 2006	2005
Chevrolet Silverado 1500	2001, 2002, 2012, 2013, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022	2007, 2008, 2009, 2010, 2011, 2014	2003, 2004, 2005, 2006
Chevrolet Silverado 2500	N/A	2004	N/A
Chevrolet Sonic	2012, 2014, 2017, 2018	2013	N/A
Chevrolet Suburban	2002, 2006, 2008, 2010, 2011, 2012, 2013, 2015, 2016, 2017, 2018, 2019, 2020	2001, 2004, 2005, 2009	2003, 2007
Chevrolet Tahoe	2001, 2002, 2006, 2008, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018	2003, 2005, 2007, 2009	2004
Chevrolet Trailblazer	2003	N/A	N/A
Chevrolet Traverse	2009, 2010, 2011, 2012, 2013, 2015, 2016, 2017, 2018	2019	2014

Dodge

Make + Model	Low	Moderate	High
Dodge Charger	2007	N/A	N/A
Dodge Dakota	2003	N/A	N/A
Dodge Durango	2014	N/A	N/A
Dodge Ram 15000^	2003, 2004	N/A	N/A

Ford

Make + Model	Low	Moderate	High
Ford Edge	2008, 2011, 2012, 2013, 2015, 2016, 2018, 2021	2007, 2009, 2010	N/A
Ford Escape	2006, 2013, 2014, 2017, 2018, 2022 2003, 2005, 2008, 2009, 2010, 2012	2004, 2007, 2011	N/A
Ford Expedition	2001, 2005, 2006, 2008, 2009, 2011, 2012, 2013, 2018	2003, 2010	2004
Ford Explorer	2003, 2004, 2005, 2006, 2007, 2008, 2010, 2018	N/A	N/A
Ford F-150	2001, 2002, 2003, 2015, 2016, 2017, 2018, 2019, 2020	2005, 2006, 2008, 2009, 2012, 2013	2004, 2007, 2010, 2011, 2014
Ford F-250	2002, 2003, 2004, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016	2005	N/A
Ford F-350	2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2015, 2016, 2018, 2020	N/A	2012
Ford Fiesta	2014, 2018	2015	N/A
Ford Focus	2003, 2004, 2005, 2006, 2008, 2009, 2010, 2011, 2013, 2015, 2016, 2017, 2018	2007, 2012	2014
Ford Fusion	2007, 2009, 2011, 2013, 2014, 2015, 2016, 2020	2006, 2008, 2012, 2017	2010
Ford Mustang	2004, 2006, 2007, 2008, 2009, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021	2005	2010
Ford Ranger	2005, 2006, 2007, 2009, 2010, 2021	2002, 2003, 2008	2004, 2011
Ford Taurus	2004, 2009, 2010, 2013, 2015, 2016	2005, 2006, 2008, 2012	2007, 2014

GMC

Make + Model	Low	Moderate	High
GMC Acadia	2007, 2009, 2011, 2013, 2015, 2016, 2017, 2019	2008, 2012	N/A
GMC Envoy	2002, 2003, 2005, 2007, 2008, 2009	2006	N/A
GMC Sierra	2001, 2002, 2016, 2018, 2019, 2020, 2021	2007, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2017	2003, 2004, 2005, 2006, 2008
GMC Terrain	2013, 2014, 2015, 2016, 2017, 2018, 2019	2010, 2011, 2012	N/A
GMC Yukon	2001, 2002, 2006, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019	2003, 2005, 200	2004

Honda

Make + Model	Low	Moderate	High
Honda Pilot	2009, 2010, 2011, 2012, 2013, 2015, 2016, 2017, 2018	2019	2014

Infiniti

Make + Model	Low	Moderate	High
Infiniti G35	2004, 2005, 2006	N/A	N/A

Jeep

Make + Model	Low	Moderate	High
Jeep Grand Cherokee	2002, 2018	N/A	N/A
Jeep Liberty	2002	N/A	N/A
Jeep Wrangler	2012, 2015	N/A	N/A

Lexus

Make + Model	Low	Moderate	High
Lexus IS 250	2008	N/A	N/A
Lexus RX 300	2001, 2002, 2003	N/A	N/A

Lincoln

Make + Model	Low	Moderate	High
Lincoln Navigator	2003, 2004, 2005, 2009, 2011, 2013	2010	N/A

Mercury

Make + Model	Low	Moderate	High
Mercury Mountaineer	2004, 2005, 2008	2006	2007

Nissan

Make + Model	Low	Moderate	High
Nissan Altima	2001, 2002, 2012, 2013, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022	2007, 2008, 2009, 2010, 2011, 2014	2003, 2004, 2005, 2006
Nissan Frontier	N/A	2001	N/A
Nissan Maxima	2001	N/A	N/A
Nissan Murano	2004, 2005, 2009	N/A	N/A
Nissan Pathfinder	2001, 2002, 2005, 2014	N/A	N/A
Nissan Rogue	2019	N/A	N/A
Nissan Sentra	2001, 2002, 2003, 2014	N/A	N/A
Nissan Titan	2007	N/A	N/A
Nissan Versa	2010, 2012	N/A	N/A
Nissan Xterra	2001, 2006	N/A	N/A

Pontiac

Make + Model	Low	Moderate	High
Pontiac G6	2005, 2009, 2010	2007, 2008	2006
Pontiac Grand Prix	2001, 2002	2003, 2004, 2007	2005, 2006, 2008

Ram

Make + Model	Low	Moderate	High
Ram 1500^	2019	N/A	N/A

Scion

Make + Model	Low	Moderate	High
Scion tC	N/A	N/A	2006, 2011

Subaru

Make + Model	Low	Moderate	High
Subaru Forester	2001, 2002, 2008, 2009	N/A	N/A
Subaru Impreza	2001	N/A	N/A
Subaru Outback	2007, 2011	N/A	N/A

Toyota

Make + Model	Low	Moderate	High
Toyota 4Runner	2003, 2004, 2005	2001	2002
Toyota Avalon	2004, 2005, 2007, 2008	2003	2001, 2002
Toyota Camry	2004, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020	2003, 2005	2001, 2002
Toyota Corolla	2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2021	2001, 2002	2003, 2004
Toyota Highlander	2001, 2004, 2005, 2006, 2007, 2008, 2011, 2015	2002	2003
Toyota Prius	2002, 2003, 2009, 2010	2004, 2006, 2007, 2008	2005
Toyota RAV4	2001, 2002, 2003, 2006, 2009	2004	2005
Toyota Sequoia	2001, 2020	2002, 2004	2003
Toyota Sienna	2003, 2007, 2008, 2012, 2013, 2017	2002, 2004, 2006	2001, 2005
Toyota Tacoma	2006, 2007, 2010, 2016, 2018	2001	2002, 2003, 2004
Toyota Tundra	2005, 2012, 2013	2001, 2004	2002, 2003

Volkswagen

Make + Model	Low	Moderate	High
Volkswagen Jetta	2008, 2012	N/A	N/A

^ Beginning with the 2010 model year, Ram was spun off from Dodge and became a separate brand. Ram-branded trucks are often referred to as Dodges, although this is technically not correct.

Source:

Data was collected from installed FIXD sensors in vehicles from the 2000-2023 model years.

David Goldberg

Dave Goldberg is an automotive journalist and lifelong car fanatic. He writes for numerous enthusiast and business outlets and is an ongoing contributor to HotCars.com, one of the most popular car culture websites. When he’s not writing or driving, Dave is either under a hood or asleep. His credentials include a BA in Journalism from The George Washington University.

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