2022 Chevrolet Suburban

This problem isn’t just the 6.2L engine. My 22 Suburban has the 5.3L and had engine failure on the freeway going 70 mph in April 2026. Loud noises and loss of power. Towed to dealership and was confirmed that it was the same issues as the 6.2L. The dealership only replaced certain components (gears, rods, camshaft etc.) Parts replaced and vehicle returned a month later but still loss of power and bad idle. New dealership in May 2026, replaced same parts, said faulty parts were used at previous dealership. Vehicle repaired and returned in June2026, a day later new code for service transmission now code thrown and parking break not working. Returned to dealership and said it was a fuel pump module? failed. No vehicle for 3 months and lots of headaches. This recall needs to be extended to the 5.3L engine as well. Needs full replacement, not just repaired. My vehicle still doesn’t run great but Chevy will not honor anymore repairs.

My vehicle was subject to a GM recall involving inspection of the 6.2L engine. The recall inspection was completed by an authorized GM dealership at 58,581 miles. The vehicle was cleared as passing the recall criteria and returned to me. Within fewer than 10 miles after leaving the dealership following the recall inspection, at approximately 58,590 miles, the vehicle experienced a sudden loss of propulsion while traveling at highway speed (approximately 65 mph) on a divided U.S. highway while ascending an incline. The vehicle shifted into neutral and lost engine power without warning. Steering and braking remained functional, but the vehicle lost forward motive power in the left lane of traffic. Attempts to restart the engine resulted in a loud mechanical thud, and the engine would not restart. The vehicle was towed to the dealership. The engine is now being replaced. Prior to this incident, the vehicle had previously undergone an oil consumption test related to engine concerns before the recall campaign. This failure occurred shortly after the vehicle was inspected and cleared under the recall procedure. I am reporting this due to the sudden loss of propulsion at highway speed following recall inspection and the subsequent need for complete engine replacement.

I own a 2022 Chevrolet Suburban RST that has experienced ongoing mechanical and safety issues over several years. I first began reporting drivability concerns to General Motors and the dealership in 2023 and continued contacting them throughout 2024 and 2025. During one dealership visit, a sales advisor rode in the vehicle with me and stated they did not observe any issues, despite my continued reports. The vehicle later suffered a loss of propulsion and required a full engine replacement. The radiator and cooling components were also replaced by a Chevrolet dealership. Due to ongoing concerns for my safety, I contacted General Motors multiple times, requested an executive buyback, and asked about Lemon Law options. GM advised that the engine had been replaced and that I needed to take ownership of the vehicle. After picking up the vehicle last Wednesday, I immediately noticed a persistent sweet coolant/radiator odor inside the cabin and outside the vehicle that continued for nearly a week. I also experienced engine hesitation/stuttering when stopped at traffic lights as the auto start/stop feature reengaged. I attempted to contact GM again regarding these concerns prior to today’s incident. Today, while driving, the vehicle displayed an engine overheating warning instructing me to turn the car off immediately. I safely pulled over and shut the vehicle down and am currently stranded roadside. Given the repeated failures, history of loss of propulsion, multiple repair attempts, denied buyback requests, persistent coolant odor, drivability issues, and now overheating shortly after engine and radiator replacement, I believe this vehicle presents an ongoing safety risk and request formal investigation.

On Saturday, 11/29/25 @ 3PM, while driving on I-75 from GA to MIA, our 2022 Suburban VIN: [XXX] sudden & unexpected had a mechanical failure. Without warning, vehicle stalled/ stop while traveling at highway speed, leaving us seconds to maneuver to the side. This failure created an extremely dangerous situation that could have resulted catastrophic or fatal accident for my family. Check engine light came on (code P102A). An officer stopped to assist & arranged car to be tow which we had to pay $135 to nearest Chevrolet dealership. Since the dealership was closed, I was forced to stay an additional night in a nearby hotel and paid $106.46. The vehicle was inspected by Countryside Chevrolet, who diagnosed the issue as a failure of the fuel pump control module however I was informed that this VIN was not covered under warranty or any special coverage, despite the fact that we experienced the exact same failure on our 2021 Chevrolet Tahoe, which was covered under warranty for this same defect. I was forced to pay $708.72 for the repair. This inconsistency is unacceptable—especially considering GMs extensive history of complaints, recalls, & class action litigation involving defective fuel pump & fuel system components, which present a well-documented safety risk. I filed a complaint with GM Customer Care (Case XXX). I submitted all required receipts for repairs, towing & hotel, however GM denied my claim without providing any explanation, only stating VIN was “not covered.” Also, GM refused to provide a written justification & my request for a manager callback was ignored. No consideration was given to the safety implications of this failure. This response is unacceptable & demonstrates a failure to take responsibility for a known safety defect. Demand: Given the seriousness of this incident, the documented defect, & GM’s prior knowledge of same failures, I demand full refund of $950.18 for expenses. This situation could have ended tragically. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA

Summary: Sudden loss of engine power while driving due to lifter failure. Details: While driving my 2022 Chevrolet Suburban equipped with the 5.3L V8 (RPO L84), the engine suddenly lost power without warning. The vehicle began misfiring and lost propulsion in traffic, creating a hazardous situation. I was unable to maintain normal speed and had to maneuver to safety while the truck rapidly lost power. The dealer later diagnosed the problem as a collapsed lifter/valvetrain failure — an issue that GM has already documented in service bulletins (PIP5776G, 23-NA-043) and a service update (N212353840). These bulletins show GM has long been aware of defective lifters in 5.3L engines. This is not just a drivability concern. A sudden engine failure and loss of propulsion while driving poses a clear safety risk, especially when merging, crossing intersections, or towing. I maintained the vehicle properly and have all service records. I request NHTSA investigate these widespread lifter failures in GM’s 5.3L V8 engines as a safety defect, since they can and do cause sudden loss of power in motion.

Driving down to Florida, No warning, no lights, never any issues except a belt replacement. I get oil changes, tire rotation every 3500 miles. Almost got killed doing 75 miles per hour, engine sputtered, totally shut down. Coasted onto an exit ramp thank God it was right there or we could of been killed. Tow truck towed to Davis Chevy Gainsville, they called me on Monday said good news I have a warranty bad news Total Engine Failure, will take 3-4 weeks to replace. Now I am trying to find a GM rental large enough to get me and my family back to TN since GM said they will only pay for a GM rental car. Scary, could of gotten killed. NO NOTICE FROM GM ABOUT ANY POSSIBE PROBLEMS....WE ALMOST GOT KILLED AND CRASHED along with the other drivers on the road. Thank God it was a Sunday and 6 am so not much traffic or it would of been worst.

Engine lost power and stalled without warning while driving down the highway. Coasted to side of road and was unable to restart engine. After engine stopped, dash indicated low fuel, although tank was 3/4 full. After coming to a stop, was unable to shift out of Park (which could have been a major issue if I had not been able to clear the highway before coming to a stop). Towed vehicle to closest Chevrolet dealer, who replaced the fuel pump control module. Dealer indicated that this is a common failure item to the point that they stock the part and suspected what the failure was based on my description. When pressed, the dealer representative also noted that GM has not updated or redesigned the factory installed fuel pump control module ("the new module installed is exactly the same as the one that failed"). Fortunately, traffic was light and I was able to pull to the side of road. This would be extremely dangerous if it happened while driving on a multi-lane expressway and we were trapped at a stop in heavy, fast moving traffic.