One problem related to check engine light on has been reported for the 1999 GMC Safari. The most recently reported issues are listed below.
Red engine light came on transmission was jumping into gear, with 26,000 miles, took to dealer they found nothing wrong. Took trip to florida red light came on took to aamco transmission (36,000 mi) found problem,850$, said this was common with this vehicle. GMC paid me half, going to court with dealer for other half. My warranty was over due to years.
| Radiator problems | |
| Engine Cooling System problems | |
| Gasoline Engine problems | |
| Engine problems | |
| Check Engine Light On problems | |
| Engine Stall problems | |
| Cooling Fan problems |