Table 1 shows one common vehicle speed control related problems of the 2014 GMC Sierra.
| Problem Category | Number of Problems |
|---|---|
| Vehicle Speed Control problems |
When driving at highway speed or accelerating the back of the truck will violently vibrate. At time it is almost uncontrollable and becomes very hard to steer. I so I have researched this issue and it seems that there are many complaints about this exact issues with 2014 to 2019 chevy and GMC trucks. I just had the alignment done and brand new tires put on it the truck 6-22-20. Now the truck shakes even more then it did before.
Tl-the contact owns a 2014 GMC Sierra. The contact stated that when moving from a stop, the accelerate pedal was depressed but the vehicle would hesitate to accelerate. The dealer was unable to diagnose the failure and advised the contact that it was normal operation. The manufacturer was notified of the failure. The approximate failure mileage was 3,000. Ne.