Table 1 shows one common electrical system related problems of the 2023 GMC Sierra 2500.
| Problem Category | Number of Problems |
|---|---|
| Electrical System problems |
I rely heavily on this vehicle for my business and within 1 year of ownership, the vehicle broke down on the highway allowing it to only run @ 30mph. After finally locating a dealer who could evaluate the vehicle in less than 1 week, I was informed that the part was unavailable and they indicated, "it could take 1 month or 3 months to receive. " following multiple conversations, I was forced to open a claim with gm customer care. While trying to get information, I was, at one point, told that "although the code indicates failed transmission control module, it doesn't happen all the time and if I wanted to drive it I could come and take it until the part arrives. " that really told me alot about how gm representatives view safety while when it happened, I was on interstate and nearly got trounced by oncoming heavy traffic while pulling an equipment trailer. After the case was handed off to several gm customer care representatives, I finally rec'd feedback including several email updates. I finally rec'd the vehicle back after 1 month and was informed that 1) would receive car payment from gm & 2) would receive additional compensation for lost work time while my vehicle was out of service (Jan 2024). Since that conversation, I did receive 1 car payment however, never heard back from alisa regarding "lost time". I have sent several emails to customer care asking for an update however, crickets. Furthermore, the car has returned to the shop for another warning to "shift vehicle to park" when it was in park. They told me its a electrical malfunction but they could not get the error to come up on test. I have a photo showing the error.
Shift to park message displayed while attempting to shut off engine after shifter was in the park position, accessory would not turn off even after driver door opened and could not leave vehicle.
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.
Bought the truck brand new. Within a week the service trailer brake warning light came on. Has been to the dealership 3 times and they still cant fix it. This affects towing of the trailer with no trailer brakes.