Table 1 shows two common vehicle speed control related problems of the 2020 GMC Sierra 1500. The number one most common problem is related to the vehicle speed control (eight problems). The second most common problem is related to the cruise control (one problem).
| Problem Category | Number of Problems |
|---|---|
| Vehicle Speed Control problems | |
| Cruise Control problems |
The contact owns a 2020 GMC Sierra 1500. The contact stated that while driving at 65 mph, the def tank failed. The vehicle went into three phases of limp mode and the vehicle unexpectedly decelerated while driving. The def system service message was displayed. Read details...
The vehicle has made "panic stops" at highway speeds 5 times when using adaptive cruise control with no input from driver or surrounding environment I. E. . Clear road, no traffic, sun or no sun. Read details...