When the vehicle engages auto-off at a stoplight, the engine stalls when trying to reengage. The engine also struggles to engage from a manual start, sometimes needing to try starting the engine three or four times before it will turn on. Two Buick dealerships inspected the vehicle and confirmed GM has an open investigation on the issue and that there is currently no fix. They recommended disabling the auto-off in the meantime. There is no temporary fix for the manual ignition issue.
- NHTSA ID
- 11754126
- Incident
- Jul 31, 2026