GMC Lemon Law Attorneys in California
If your GMC has repeated problems that won’t go away, we can help.
Lemon Law Help can answer any questions you have about your potentially defective GMC. We can also provide answers about possible GM lemon law settlements.
If you decide to go forward with a GMC lemon law case, we represent you at no cost while you seek cash compensation, a vehicle replacement, or a buyback under the California Lemon Law.
Common GMC Issues
Not sure whether your GMC problem counts? Start with the warning signs below, then check the lawsuits, recalls and bulletins that follow.
GMC Lemon Law Litigation
Auto manufacturers will sometimes release faulty cars, trucks, and other vehicles to the public. GMC is no exception, with several product liability lawsuits targeting parent company General Motors over the years. Owners of GMC vehicles should look out for the following signs of a lemon vehicle:
- Excessive Oil Consumption
- Sudden Jerking While Driving
- Transmission Failure
- Check Engine Light Turns On
- Hard Up and Down Shifting
- Fluid Leaks: Motor Oil, Steering Oil, Coolant Fluid, Transmission Fluid
- Sudden Deceleration
- Vehicle Stalls While Driving
If these or any other vehicle problems repeatedly appear, your GMC may be a lemon, and you may have a claim of your own against General Motors under the California lemon law.
Learn more about what California’s lemon law can do for you. If you want to seek legal remedies from your auto manufacturer, consult an attorney to discuss your GMC lemon law rights.
Multiple GMC models have been involved in recalls or litigation in recent years, including an engine failure recall of nearly 600,000 vehicles in April 2025 that included certain 2021 to 2024 GMC Sierra 1500, Yukon, and Yukon XL models. If you’re experiencing chronic issues with your vehicle, you may be eligible for a GMC lemon law case.
For trucks and SUVs that got the recall inspection, GM’s owner letter says GM will repair or replace an engine that later fails from this defect at no charge, within 10 years of the in-service date or 150,000 miles, whichever comes first. The letter adds that the powertrain warranty terms govern this coverage and that a GM dealer must do the work.
GMC 6.2L V8 Engine Failures
After the 6.2L V8 recall, NHTSA kept getting reports of engine failures, and as of October 2026 it has two open investigations. One covers vehicles outside the recall, including the 2020 Sierra 1500. The other covers engines that failed after the recall repair, and it also reaches engines built after the recall period.
When NHTSA opened that second investigation in August 2026, it had 499 complaints of engines failing after the recall work across GM’s recalled trucks and SUVs, and GM had reported 6,953. Owners have also sued GM in proposed class actions over failures of the 6.2L V8. Those suits are now combined in one federal case in Michigan that is still open, and no court has certified a class.
Engine and Transmission Defects in GMC Vehicles
If your GMC shakes, shudders or hesitates, check whether one of the recalls or bulletins below matches your problem. GM recalled certain 2022 Yukon and Yukon XL models with the 10-speed because a failed control valve inside the transmission could lock the rear wheels, and the fix is a software update at no charge. For a shake or shudder at about 25 to 50 mph, a GM information bulletin for certain Sierra 1500, Yukon and Yukon XL models tells technicians the cause may be one of various transmission and engine concerns.
In its latest quarterly report, GM said it has agreed to settle class actions over allegedly faulty 8-speed transmissions in vehicles that include some 2020 to 2022 models. The report does not name the models or share the terms, and it does not say a court has approved the settlement.
Only certain models are covered by these recalls and bulletins, but some of the symptoms involved are common issues reported by GMC owners, including shaking, shuddering, hesitating, difficulty stopping, and other problems. If your Yukon, Sierra, or other vehicle has constant issues with laggy acceleration or a jerky driving experience, you may have a GMC lemon.
GMC Terrain Ecotec Engines
A GM bulletin for the 2020 to 2022 GMC Terrain with the 1.5-liter turbo, an engine from GM’s Ecotec family, covers engines that won’t start or crank too long, sometimes with a harder brake pedal. GM recalled certain 2022 Terrains because the fuel pump module may not deliver enough fuel and the engine can stall. A GM service update, open until the vehicle’s emissions warranty ends, has dealers replace the high-pressure fuel pump on certain 2023 Terrains.
GMC Fuel Pump Recalls
GM recalled certain 2025 and 2026 Sierra 3500 trucks with gas engines and dual fuel tanks because the rear fuel pump may not move enough fuel to the front tank, which can stall the engine. It also recalled certain 2021 Yukon and Yukon XL models because the fuel pump power control module can make the fuel pump fail and stall the engine. GM does both repairs at no charge.
GMC Duramax Diesel Recalls
GM recalled certain 2020 to 2022 Sierra 1500, 2500 and 3500 trucks and 2021 Yukon and Yukon XL models with diesel engines, since a faulty valve in the transmission may cause the rear wheels to lock up. Dealers update the transmission software at no charge, and GM says a special coverage program pays to repair transmissions that the software finds have a defective valve. In 2026, GM recalled some of those Sierras again because the earlier repair may not have been done correctly.
A defect that keeps coming back after a recall repair can be the basis for a lemon law claim against General Motors.
Do You Have a GMC Lemon?
Under California law, a vehicle is considered a “lemon” when:
- It has a defect covered by the warranty that substantially impairs its safety, use, or value
- The defect wasn’t caused by unauthorized or unreasonable use after the sale, such as abuse, and
- The defect is still present after a reasonable number of repair attempts by the manufacturer or its dealers.
You may qualify for a reimbursement or a replacement, your choice, if you’ve tried to get your car fixed under warranty multiple times or had to endure long periods of time in the repair shop. Make sure to save any receipts, records, or other documents related to your efforts to fix your car, and keep thorough notes. Your next step is to seek legal advice from an experienced lemon law attorney.
Speak with Our GMC Lemon Law Attorneys
Lemon Law Help has secured the #1 annual lemon law verdict in California multiple times, achieving record-breaking settlements for our clients. We’ve spent over 15 years helping more than 10,000 consumers pursue claims after buying or leasing a defective vehicle.
If you go forward with a GMC lemon law case, we represent you at no cost while you seek cash compensation, a replacement or a buyback. Contact us online or call 833-208-8181 today.
Lemon Law Help works only in California. We help California residents who bought or leased a defective model year 2020 or newer vehicle from a licensed California dealer. We cannot help people outside California, unless they are active-duty military.
