Chevrolet C1500 Suburban

Initial indicators lead to engine failure as a result of defective part internal to the engine.

While coming to a stop on a highway, the engine started running very rough, shaking the vehicle constantly, and the check engine light came on and the ESC failure notice came on. We brought it to an independent repair shop that ran diagnostics and recommended the vehicle needed a new engine and should not be driven for risk of it seizing. They introduced us to the fact that there was a GM recall on this particular engine and production year. Upon taking the vehicle to the local Chevy…

operating vehicle as usual, in drive, when engine spontaneously turned off. Alerted by system to push button to start again and put me in neutral. Extremely dangerous while the vehicle was in motion. This is the exact same thing I read about in a 2025 recall of 2021-2024 model year Suburbans and other vehicles. Mine is a 2022 Suburban.

My 2023 Chevrolet Suburban equipped with the 3.0L Duramax diesel engine (LM2) has experienced a recurring engine oil leak involving the rear main seal/lower timing cover area. The vehicle has required repeated dealer repairs for substantially the same oil-leak condition, including major engine-related disassembly, but the leak has returned after repair. This is a safety concern because failure of the rear main seal or lower timing cover sealing system can result in loss of engine oil while the…

Found that SOS nor OnStar buttons were not working. Dealership checked telematics control module was failing. Service bulletins were issued for wide spread failures, however no recall notices were issued. The module failure will also prevent notifications in the event of a traffic crash. Estimated repair cost $900. A true safety issue that should require a recall.

Car died in middle of nowhere at high speeds

The contact owns a 2023 Chevrolet Suburban. The contact stated that the vehicle had experienced excessive oil consumption. The contact stated that while driving at various speeds, the vehicle chugged, jerked, and lunged forward. The vehicle was taken to the dealer; however, the failure could not be duplicated. The contact stated that the failure reoccurred. The vehicle was taken back to the dealer, where the spark plugs were replaced; however, the failure persisted. The dealer was notified of…

The telematics control module in this vehicle failed. A dealer diagnostic scan on 03/09/2026 at 67,839 miles documented the following active and history codes: U0198 Lost Communication with Telematics Module, reported independently by the Radio, Body Control Module, and Instrument Panel Cluster Control Module; U0499 Invalid Data Received from Telematics Module, reported by the Engine Control Module; U1962 Unable to Authenticate Serial Data Message; B1A1F Ethernet Bus 4 (+) Circuit Open with a…

The contact owns a 2022 Chevrolet Suburban. The contact stated that while attempting to start the vehicle, the instrument panel displayed a blank screen. A dealer was contacted. The vehicle was taken to the dealer to be diagnosed, and it was determined that the instrument panel needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 95,000.

The transmission failed suddenly and without warning. When I Went to pull out from a stop sign with cross traffic doing 55 mph, the vehicle shuddered and stopped pulling. We barely had enough momentum to get out of the way of oncoming traffic at the last second. The oncoming traffic had to brake and honked. After reading online, this is a common issue with the 6l80 transmission torque converters being a failure point and the fluid temperature being too high. Gm has a service bulletin for a…