Table 1 shows two common forward collision avoidance related problems of the 2021 GMC Acadia. The number one most common problem is related to the automatic emergency braking (five problems). The second most common problem is related to the warnings (one problem).
| Problem Category | Number of Problems |
|---|---|
| Automatic Emergency Braking problems | |
| Warnings problems |
On March 27, 2026, I experienced a complete brake failure while driving a 2021 GMC Acadia in a school zone at approximately 3:00 pm. When I pressed the brake pedal, the vehicle did not respond. I attempted multiple times, including using the emergency brake, which did not activate immediately. Read details...
Instrument cluster malfunction. Entire instrument cluster blacking out every 60 seconds, then rebooting nonstop while driving. While this was occurring, none of the advanced driver assistance systems functioned, nor did the speedometer or other gauges. Read details...