Two problems related to underhood wiring have been reported for the 2003 Chevrolet Express. The most recently reported issues are listed below.
The panic alarm went off and couldn't be turned off initially. Dealer advised to bring vehicle in. Alarm went off when vehicle started for second time. Vehicle driven about 3 miles, engine shut down while driving. Pulled over, smoke poured from under hood, then flames until vehicle engulfed in flames. Vehicle totally destroyed by fire.
Consumer was awakened by a horn blasting in the driveway of residence. After a few minutes consumer heard a loud explosion. When the consumer arrived at the front door, vehicle was in flames. Engine was totally consumed by the fire. The fire department arrived, and informed the consumer that faulty wiring caused the fire.
| Underhood Wiring problems | |
| Dash Wiring problems | |
| Wiring problems | |
| Electrical System problems | |
| Horn Assembly problems |