https://plaincars.com/make/gmc-sierra-2500 New NHTSA complaints and recalls filed for the GMC Sierra 2500. en-us Sat, 12 Sep 2026 05:03:33 GMT https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#recall-26V114000-gmc-gmc-sierra-2500-2026 Thu, 26 Feb 2026 00:00:00 GMT General Motors has decided that certain 2027 Chevrolet Bolt EV, 2025-2026 Cadillac OPTIQ, Chevrolet Colorado, Equinox EV, GMC Canyon, 2026 Buick Enclave, Envision, Cadillac CT5, Escalade, Escalade ESV, Escalade IQ, Escalade IQL, LYRIQ, VISTIQ, Chevrolet Blazer EV, Corvette Convertible, Corvette Coupe, Corvette Convertible E-Ray, Equinox, Silverado 1500, 2500, 3500, Silverado EV, Suburban 1500, Tah https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2177001 Sun, 15 Feb 2026 00:00:00 GMT Air bag front impact sensor are no longer available from manufacturer. Airbag system in inoperable. https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2177078 Sun, 15 Feb 2026 00:00:00 GMT A couple times I heard loud clanking coming from rear brakes. One time in particular I was trying to stop and it felt line someone had ran into my truck but must have been the rear wheel locking up https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2177040 Sun, 15 Feb 2026 00:00:00 GMT Truck had 3 momentary rear wheel lock ups on the highway from 41 - 52 mph. https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2176492 Fri, 13 Feb 2026 00:00:00 GMT The contact owned a 2019 GMC Sierra 2500. The contact stated that on several occasions while driving at undisclosed speeds, the vehicle lost motive power. There was no warning light illuminated. The vehicle was restarted; however, the failure recurred. The vehicle was taken to an independent mechanic, where it was diagnosed and determined that the rear fuel tank had failed and needed to be replace https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2176570 Fri, 13 Feb 2026 00:00:00 GMT On 3 separate instances the past few months the truck slammed on brakes for no apparent reason. And 2 separate times the past week or so the truck suddenly and uncontrollably accelerated — first at gas a station convenience store and almost ran over old lady, secondly while waiting line on arterial entrance ramp! https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2176571 Fri, 13 Feb 2026 00:00:00 GMT On 3 separate instances the past few months the truck slammed on brakes for no apparent reason. And 2 separate times the past week or so the truck suddenly and uncontrollably accelerated — first at gas a station convenience store and almost ran over old lady, secondly while waiting line on arterial entrance ramp! https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2176737 Fri, 13 Feb 2026 00:00:00 GMT Component / System Failure The exhaust system, specifically the exhaust manifolds and previously the EGR system components, appear to have failed or malfunctioned, allowing exhaust gases to enter the passenger cabin. The dealer initially replaced the EGR cooler diverter on December 23, 2025. However, the condition persisted. On February 3, 2026, cracked exhaust manifolds were identified by the d https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2176738 Fri, 13 Feb 2026 00:00:00 GMT Component / System Failure The exhaust system, specifically the exhaust manifolds and previously the EGR system components, appear to have failed or malfunctioned, allowing exhaust gases to enter the passenger cabin. The dealer initially replaced the EGR cooler diverter on December 23, 2025. However, the condition persisted. On February 3, 2026, cracked exhaust manifolds were identified by the d https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2176739 Fri, 13 Feb 2026 00:00:00 GMT Component / System Failure The exhaust system, specifically the exhaust manifolds and previously the EGR system components, appear to have failed or malfunctioned, allowing exhaust gases to enter the passenger cabin. The dealer initially replaced the EGR cooler diverter on December 23, 2025. However, the condition persisted. On February 3, 2026, cracked exhaust manifolds were identified by the d https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2176197 Thu, 12 Feb 2026 00:00:00 GMT The contact owns a 2022 GMC Sierra 2500. The contact stated that the engine was making an abnormal rattling sound on cold starts. There was no warning light illuminated. The vehicle was taken to the dealer, where the front muffler exhaust baffle was replaced; however, the failure persisted. The vehicle was taken back to the dealer, where the contact was informed that the rattling sound could not b https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2176193 Thu, 12 Feb 2026 00:00:00 GMT I own a 2024 GMC Sierra Denali Ultimate 2500HD diesel that has been out of service for 52 days due to an oil cooler / service bulletin related failure. The vehicle is under warranty. The required replacement part is on national backorder and, as of today, has not shipped. The current estimated ship date is February 17. During this time, neither the dealership nor GMC has provided proactive commu https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2176194 Thu, 12 Feb 2026 00:00:00 GMT I own a 2024 GMC Sierra Denali Ultimate 2500HD diesel that has been out of service for 52 days due to an oil cooler / service bulletin related failure. The vehicle is under warranty. The required replacement part is on national backorder and, as of today, has not shipped. The current estimated ship date is February 17. During this time, neither the dealership nor GMC has provided proactive commu https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2172845 Tue, 03 Feb 2026 00:00:00 GMT 80,000 Miles, complete engine break down. 12,000 to repair https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2172949 Tue, 03 Feb 2026 00:00:00 GMT Onstage control module fail and drains batteries leading to power failure. https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2171066 Thu, 29 Jan 2026 00:00:00 GMT Burning an unusual amount of oil. Have seen several instances of blue smoke in the exhaust. Have had to add over a quart of oil twice in less than 6500 miles. https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2170016 Mon, 26 Jan 2026 00:00:00 GMT I have went to a dealership to try and trade this vehicle in and they have informed me that this vehicles odometer has been rolled back prior to me purchasing it. It was not disclosed to me from Bob Rorhman Hyandia that this had happened. https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2170130 Mon, 26 Jan 2026 00:00:00 GMT Odometer Fraud. The contact purchased a 2015 GMC Sierra 2500. The contact stated that while attempting to register the vehicle, it was discovered that there was a mileage discrepancy. The vehicle was a dealer sale. At the time of purchase, the vehicle mileage was 189,458 and the contact stated he discovered on Carfax that mileage was 188,052; however, the contact discovered that the mileage was 11 https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2169488 Sat, 24 Jan 2026 00:00:00 GMT Driving at approximately 30-35MPH merging in traffic, the transmission shuttered and went into reduced power mode. ECM reported a 747 code and valve body failure. https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2167404 Sat, 17 Jan 2026 00:00:00 GMT Metal/chrome decal on seat pulls hair frequently, making sitting back in a safe position uncomfortable. Fix this issue. https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2166416 Thu, 15 Jan 2026 00:00:00 GMT The transmission made a loud noise, resulting in a sudden decrease in speed while driving in traffic. Felt similar to being rear ended in a collision. The lights came on in my dashboard including the check engine light. Tried driving the vehicle and it would shift erraticaly rendering un-driveable. Had to be towed to my GMC dealership for service. The initial diagnosis is an issue with the "valve https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2166405 Wed, 14 Jan 2026 00:00:00 GMT About 2-3 months ago I had a battery swell up and start smoking and making an awful smell in my truck. I took it to dealership and was informed that I needed a new battery and it was not covered under bumper to bumper warranty or my extended warranty which I thought was ludicrous. The truck is 18 months old. It does have 50,000 miles but I have yet to see one that isn’t at least prorated for https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2165461 Mon, 12 Jan 2026 00:00:00 GMT Summary of Issue On [XXX], my family and I departed Kansas City, Missouri, for a camping trip to Great Smoky Mountains National Park (Cades Cove), Tennessee, approximately 800 miles away. We were towing a 2020 Forest River Salem FSX/RTX travel trailer, estimated at approximately 6,000 pounds loaded, using a Reese weight distribution hitch with integrated sway control. This load was well below the https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2164940 Sat, 10 Jan 2026 00:00:00 GMT Had a minor wreck was to be two weeks to then it had to have a new frame they said it coun't be repair if a minor wreck can do this much damage there is a problem with subpar frames that any sudden stops or turns https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2164941 Sat, 10 Jan 2026 00:00:00 GMT Had a minor wreck was to be two weeks to then it had to have a new frame they said it coun't be repair if a minor wreck can do this much damage there is a problem with subpar frames that any sudden stops or turns https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2163608 Tue, 06 Jan 2026 00:00:00 GMT My right headlamp/ turn signal assembly began flashing at random intervals. The high beam would come on and off randomly. The entire assembly would randomly flash along with the turn signal. The headlamp would go on and off randomly. This included switching between setting. High beam, low beam, daytime running light, and completely off with no warning. This causes blinding conditions for oncoming https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2163779 Tue, 06 Jan 2026 00:00:00 GMT Complete engine failure with no warning on major road in heavy traffic. Very dangerous situation to pull off safely. Vehicle was towed to dealer and confirmed engine is seized. Unknown cause at this time. Transmission has had valve body replaced prior to engine failure. Transmission still has shudder after valve body replacement and prior to engine failure. https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2160947 Sun, 28 Dec 2025 00:00:00 GMT Constantly having to clean the map Senor to be able to drive pickup without service emissions alerting me to clean the map Senor or my truck goes in limp mode. This can’t be normal to have to clean this so much. My truck is fairly new and should not be having these issues. Put a scanner on my GMC and the code says P122D. I got on YouTube and I found MANY people complaining about my exact problem https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2159227 Sat, 20 Dec 2025 00:00:00 GMT The main tailgate will not go down or function properly and it says online there is a national recall for this, but does not come up when I search my vehicle. When I turn on my left turn signal the brights flash for no reason and this is a known major issue with the vehicles as well. The trucks computer is telling me low on coolant even though it is not that has already been fixed through a 3rd https://plaincars.com/make/gmc-sierra-2500 https://plaincars.com/make/gmc-sierra-2500#complaint-2159228 Sat, 20 Dec 2025 00:00:00 GMT The main tailgate will not go down or function properly and it says online there is a national recall for this, but does not come up when I search my vehicle. When I turn on my left turn signal the brights flash for no reason and this is a known major issue with the vehicles as well. The trucks computer is telling me low on coolant even though it is not that has already been fixed through a 3rd