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Engine
02/02/2026
I had a recall serviced on a Friday which was completed by the dealership. My car sat all weekend and was not driven until Monday AM which was fine. After work, there were several warning lights that popped up and it was making a terrible noise. I was unable to drive home and had to have my car towed to the dealership. Following there inspection, my engine had to be replaced due to a known issue with this engine and GM. Cylinder #2 misfire, lost compression - lifter had spun in guide, camshaft is damaged - engine needs to be replaced. Unfortunately, I was just out of warranty so it was either pay $12,000+ for a new engine or walk away from a car that I love. I just don't understand why if GM knows this is an issue, why there is not some sort of recall on it.
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Exterior Lighting
04/13/2026
2021 SUBURBAN LT. Driver side headlamp adjuster failed while driving. Wife struggles to see at night so when the adjuster failed the driver side headlamp faced right to the ground causing no projected illuminating light. We attempted to adjust the light when she arrived home but it would not adjust due to the leveler failing and breaking. Looking into the matter we found out that numerous people with those, suburban's and even Silverado's that share the same parts have also reported the part failing due to the leveling being so thin and driving over bumpy roads will cause the weight of the lamp to snap and break. Its a growing concern yet dealerships are charging customers over 1400 to replace the whole assembly as it is one seal piece. There was no indication of it starting to fail just the moment it went from fine to facing the ground. We tried to run through extended warranty but claimed denied stating us touching the leveler to adjust it is what caused it to break. We tried to prov...
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Engine And Engine Cooling
03/20/2026
The contact owns a 2021 Chevrolet Suburban. The contact stated that while operating the vehicle, the engine was idling rough, the Check Engine warning light was illuminated, and the vehicle failed to properly accelerate. The vehicle was driven to the local dealer who diagnosed the vehicle and determined that the engine rods were bent, causing internal damage to the engine. The contact was informed that the engine needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure, but no assistance was provided. The contact was informed that the VIN was not included in NHTSA Campaign Number: 25V274000 (ENGINE AND ENGINE COOLING). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 99,000.
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Power Train
06/01/2026
2021 Chevy Suburban started to have harsh shifting particularly on acceleration and shuddering at higher rates of speed (feeling like you are driving over a rumble strip). I took it to the dealer, and they confirmed the torque converter was in the process of failing. It's currently in the shop getting a new torque converter. No warning messages/lights had yet appeared. Technician at dealer stated that this was a common failure with this model.
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Exterior Lighting
03/12/2026
The front headlight leaks water which pools inside the led front headlight bezel causing the headlamp to blow/fail. This is a known GM issue and TSB's have been initiated. Concern was confirmed by the dealership who reported that the seal on the headlamp had failed causing the water leak and full replacement of the headlamp/headlight bezel needed to be replaced.
