*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Electrical system
The contact works for a company that owns a 2023 GMC Sierra 2500. The contact stated that the vehicle experienced intermittent electrical failures. While driving, the vehicle stalled upon acceleration, followed by a total loss of electrical power. The vehicle was towed to a dealer for inspection; however, the failure could not be duplicated. The failure mileage was 177,000.
Oct 1, 2024 · 177,000 milesTires › Tread/belt
Complete Tread/belt separation originating inside the tire. I have the complete tire and the complete tread. This happened at highway speed. I'm going to the dealer to get an inspection. The only symptom was a bad vibration before the tread separation. LT275/65R20E
Sep 7, 2026Tires
On Saturday, XXX, at around 3:00 PM, my wife and I were traveling southbound on Interstate XXX toward [XXX] (this occurred in [XXX], just north of [XXX]). We were driving our 2023 GMC Sierra 2500HD pickup while towing our 36-foot 5th wheel trailer. I was traveling at approximately 60 miles per hour, and there was heavy traffic on the highway. Just north of Highway XXX, the passenger rear tire delaminated and went flat. The tread came off the tire, striking the wheel well, rear bumper, and tailgate of my truck, causing significant damage. It also hit the front panel of my 5th wheel trailer. The tread then flew off and struck the windshield of a vehicle traveling next to us, but fortunately,…
Jul 25, 2026Wheels
While driving at highway speed, the left rear OEM Goodyear Wrangler 275/65R20 tire experienced a sudden tread separation and catastrophic failure. The tire pressure was correct, there were no TPMS warnings or other vehicle alerts, and the vehicle did not strike any road debris or other object prior to the failure. The truck was purchased new in December 2022 and has approximately 14,500 miles. The tread separation caused extensive damage to the truck, including the bedside, bumper, taillight, wheel opening trim, and other components. The body shop repairing the vehicle advised that they have seen numerous similar failures, and I have also found multiple reports from other owners of the same…
Jul 26, 2026Tires › Tread/belt
These tires are not safe for off-road to highway use. After transitioning to the highway from a gravel driveway, I noticed that rocks were stuck in the treads. A significant about of rocks became dislodged and start to contact my vehicles underbody steps. I feel as if this can create significant and costly problems for the vehicles that are following close or perhaps behind in any manner. Large rocks and what I would classify as mini boulders are often found lodged in the tread and don't come out till they are picked out or fly out.
May 31, 2026Service brakes
On XXX, I was towing my camper to Copper Center, Alaska from Palmer, Alaska when my truck experienced a full transmission shut down which put the truck into "Reduced Power Mode". We descending down the road right next to Victory Bible Camp (64741 Victory Rd, Sutton-Alpine, Ak 99674) when the exhaust break turned off and the truck decreased power and the Check Engine Light illuminated. The Diagnostic that was produced by OnStar revealed 3 different codes. ( P0700 TCM, P0747 Pressure Control Solenoid A is stuck in the "ON" position, C116b faulty brake pad wear sensor.) I called GMC of Palmer and GMC OnStar advisor, both informed me that the truck needed to be towed. My safety concerns is…
Jul 3, 2026Electrical system
The contact owns a 2023 GMC Sierra 2500. The contact stated that on several occasions, after the vehicle had been parked for approximately two days, the vehicle failed to start. The vehicle was jump-started and taken to a dealer three times, where it was diagnosed and determined that the battery needed to be replaced. The vehicle was repaired three times, but the failure persisted. The manufacturer was notified of the failure, and a complaint was filed. The failure mileage was 33,000.
Apr 15, 2025 · 33,000 milesPower train
Driving at approximately 30-35MPH merging in traffic, the transmission shuttered and went into reduced power mode. ECM reported a 747 code and valve body failure.
Nov 22, 2025
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.