One problem related to alternator/generator/regulator has been reported for the 2002 GMC Sonoma. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 GMC Sonoma based on all problems reported for the 2002 Sonoma.
While driving at any speed on flat surface and with no warning alternator overheated, causing engine to catch on fire. Consumer was forced to pull over. Dealer notified.
| Dash Wiring problems | |
| Software problems | |
| Electrical System problems | |
| Starter Solenoid problems | |
| Alternator/generator/regulator problems | |
| Ignition Switch problems | |
| Battery Dead problems |