2019 Chevrolet Suburban engine problems

Filed Nov 3, 2026 · Engine · RI

Cam shaft lifter motor failure. Was rebuilt by GM dealership and one year later engine failed agian no warranty in both cases becasue I was just over the milage threshold.

Filed Sep 18, 2026 · Engine · NV

vehicle SUFFERED AN ENGINE FAILURE, which I believe is same problem as GM SUVs made from 2021 to 2024 for which recall exist . Engine that failed was 6.2L V8 / L87

Filed Aug 24, 2026 · Engine · 124,818 miles · WI

The contact owns a 2019 Chevrolet Suburban. The contact stated that while driving at an undisclosed speed, the vehicle was shaking with the check engine warning light illuminated. The contact pulled over and had the vehicle towed to the dealer. The dealer diagnosed a cylinder misfire and determined that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 124,818.

Filed Jul 25, 2026 · Engine · VA

Oil pressure acting weird. We checked the oil and there were only 2 quarts of oil in truck. I just had an oil change 3 weeks ago. No oil leaks. Engine must be burning oil for some reason.

Filed Jul 14, 2026 · Engine, Seat belts · CA

Since December 2020, our Suburban has been in for seven extended, documented dealership repair events at Guaranty Chevrolet and Simpson Chevrolet of Garden Grove, totaling 192 cumulative days out of service and $47,560.86 in documented repair invoices — approximately 71% of what we paid for the vehicle. Those repairs have included a complete transmission replacement (58,861 miles), a recurrence of the same active-lifter defect only ten days later, an ignition coil failure, fuel injector and air conditioning failures, an oil pump failure, and, most seriously, a complete engine replacement (66,854 miles) after the dealership documented metal in the oil and filter and engine end play. The situation has continued to worsen. We picked up the vehicle on XXX following the complete engine replacement. Only six days later, on July 6, 2026, the check-engine light returned and we brought the vehicle back to the dealership. We were initially told the issue was a sensor; the following day, we were informed that the replacement engine — which the dealership had disclosed to us at the time was a refurbished unit — was itself defective and would need to be replaced a second time. As of this writing, that repair remains open. In other words, the remedy provided for this vehicle's most serious failure did not resolve the problem, and we are once again without our vehicle. This pattern of failures has caused real, ongoing hardship for our family. We specifically purchased a full-size, top-trim Suburban for its seating and cargo capacity: we have two teenagers at home who depend on us for transportation to school and activities, we regularly care for grandchildren, and our [XXX] daughter has Complex Regional Pain Syndrome (CRPS), a debilitating condition that often requires her to use a wheelchair. The Suburban's cargo space is what allows us to transport her together with her wheelchair. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed May 25, 2026 · Engine · OH

When I first got this vehicle 2019 brand new off the lot the dealership in newark ohio had to completely rewire it. It took them a month to figure it out. I just replaced the transmission and now the engine is out. A piston rod snapped hit both sides an cracked the sides and the oil pan.

Filed May 20, 2026 · Engine, Transmission · FL

Transmission stalling, hesitating, affecting engine performance and rpm's. broke down on highway. We replaced the transmission, now it's doing a similar problem and the mechanic says the engine is failing, cylinders issues. I've read up it's happening to many of the same year make and model. I spent 7k on a new transmission. Now a new engine??? ...frustrating! Please help

Filed Apr 9, 2026 · Engine · NJ

I was driving yesterday when my car began to shake at low RPMs. The traction control light came on steadily and the check engine light was blinking. I was unable to safely accelerate. I took it to my mechanic who tested spark plugs and coils, which he confirmed aren't the problem. He informed me that this is a common issue with the GM 6.2L engine, but mine isn't part of the recall. After checking online I see that this is exactly what many others are reporting and that there's an the federal safety agency investigation as well as a class action lawsuit tied to this issue.

Filed Mar 17, 2026 · Engine, Transmission · MD

Two years ago, we had to have the transmission rebuilt after it kept slipping. Yesterday, as I was driving on I-95, I was passing a vehicle and pressed on the gas. There was a loud crunching noise and I lost acceleration. The check engine light came on right away and I couldn’t press on the gas without a noise and limited forward momentum. I then had to maneuver the car across four lanes of traffic with limited control over speed. There was no warnings an issue was going to occur. We had it towed to our mechanic who said there was low compression in cylinder 1. Less than 90 psi. Again, we had already had the transmission replaced and now this major engine issue. We are in the process of getting it to a Chevy dealer.

Filed Feb 23, 2026 · Driver assistance, Electrical · ME

Year: 2019 Make: GMC Model: Suburban Mileage: Approximately 125,000 miles (purchased under 90,000 miles) 1. Transmission Failure My vehicle is experiencing clear signs of transmission failure, including: •Hard downshifting/clunking •RPM fluctuations while cruising •Shuddering between approximately 30–50 mph •Vibrations while idling •Hesitation and irregular shifting These symptoms have progressively worsened and are consistent with widespread complaints I have found from other 2019 Suburban owners. This appears to be a known issue affecting multiple vehicles. 2. Rear Liftgate / Electrical Malfunction The rear trunk/liftgate has closed on its own without warning multiple times. I have personally been struck in the head several times as a result. This presents a serious injury risk, especially for families loading children or cargo. There is clearly an electrical or sensor malfunction causing this behavior. 3. Automatic Emergency Braking (AEB) System Activating Randomly The most alarming issue is that the automatic emergency braking system has activated on its own multiple times while driving on the turnpike with no obstruction present. This has nearly caused accidents on several occasions. Unexpected braking at highway speeds creates an extremely dangerous situation for both my family and surrounding drivers. These issues are not minor inconveniences — they are serious safety hazards. Sudden braking, unintended liftgate closure, and transmission failure all create significant risk of injury or collision. Given the number of similar complaints publicly reported by other owners, I am requesting that the federal safety agency formally investigate these defects and determine whether a recall should be issued for affected 2019 GMC Suburban vehicles. I am extremely concerned for the safety of my family and others on the road. Please confirm receipt of this complaint and advise if additional information is needed. Sincerely, [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)