Table 1 shows one common vehicle speed control related problems of the 2024 GMC Sierra 3500.
| Problem Category | Number of Problems |
|---|---|
| Vehicle Speed Control problems |
The gauge cluster flickers and goes blank completely while driving, over head windshield screen display still works, and throws an - accretion speed limited- message. Truck has electronics software issues, climate control flickers, works sometimes, most times doesn’t, loose electrical connections. Over all the GMC truck is a major software glitch and GMC does not want to take accountability for there lemon product which is very costly in repairs. GMC service is not great and the warranty period of 36,000 miles is not justifiable. My truck has 68,000 all highway miles, not city miles. 2024 GMC denali top in its class, and still has more issues than my 2007 GMC sierra.
On multiple occasions, the vehicle has suffered from a severe computer failure. This results in the driver information center losing all data, the climate system shutting down, loss of all driver assistance features, loss of computer based safety systems, and prevents the vehicle from shutting down or being restarted until the batteries are disconnected. This results in the driver having no information about speed or engine parameters while driving. This error has not been reproducible by the dealer however they were able to assess it while one error occurred while driving by them. Their diagnostics show a complete failure of all 3 data buses and failure of the serial data gateway. Troubleshooting thus far has been unsuccessful. During the failure, all errors possible are lit on the warning lamps and the driver information center displays warnings for all vehicle modules. The attached photo was taken during one of the events after pulling off the freeway. While traveling at freeway speeds, the information on the screen was the same indicating no speed. This presents numerous safety risks.