Problems · by component
2003 GMC Envoy electrical system problems
136 owner complaints to NHTSA about the 2003 GMC Envoy cite electrical system, 21% of all 642 complaints for this model year.
Complaints
136
21% of all complaints
Crashes
3
Reported by owners
Fires
6
Reported by owners
Injuries
10
Reported by owners
What owners say about the electrical system
Verbatim from NHTSA complaints, newest first
“The contact owns a 2003 GMC Envoy. The contact stated that while in drive(D), the vehicle shut off and then restarted. The message “Service Engine Soon” was displayed. The vehicle was taken to the local dealer, where it was diagnosed and determined that the instrument cluster needed to be replaced. The vehicle was repaired, but the failure reoccurred. The vehicle was taken back to the dealer who installed the original instrument cluster, but the failure persisted. The manufacturer was not notified of the failure. The approximate failure mileage was 98,000.”
“The car's gas gauge and fuel range indicator are problematic. The fuel gauge quickly drops from a higher reading, like 3/4 full, to empty. After this, the gauge and the fuel range both fluctuate while driving, making it impossible to determine the fuel level.”
“The contact owns a 2003 GMC Envoy. The contact stated that the headlights ceased to operate as needed. Upon taking the vehicle to a local Pep Boys, it was diagnosed that the electrical wiring harness was burned and needed to be replaced. Additionally, the bulbs needed to be replaced. The contact stated that the vehicle was repaired; however, the failure recurred. The vehicle was taken back the local Pep Boys, who replaced the electrical wiring harness and the bulbs a second time; however, the failure persisted. The dealer and the manufacturer were not notified of the failure. The vehicle was not repaired. The failure mileage was unknown.”
“I WAS DRIVING DOWN THE ROAD WHEN THE CAR SHUT DOWN EVERYTHING I WAS SCARED BECAUSE I HAD TRAFFIC RIGHT BEHIND ME GOING 45MPH AND THEN THEY CAR WOULD NOT RUN AGAIN. I WAS RIGHT IN THE MIDDLE OF AN INTER SECTION AT HALL ROAD AND 59 IT WAS THE SCARIEST THING THAT HAS HAPPENED TO ME. I BOUGHT THIS VEHICLE AS A USED AUTO AND I'M NOT SURE IF THE EMMISSION SYSTEM EVER GOT CHANGED AND THIS HAPPENED ONCE BEFORE AND THE DEALER SAID NOT TO DRIVE WITH MY HOUSE KEYS ATTACHED. I HAD TO GET THE AUTO TOWED HOME.”
“THE ELECTRIC WIRING FOR THE WINDOWS AND SIDE MIRRORS WILL START MAKING A CLICKING NOISE AND WHEN I PUT THE KEY INTO THE IGNITION AND TURN THE KEY JUST ONE TURN THE FRONT PASSENGER WINDOW GOES COMPLETELY DOWN AND WILL NOT GO BACK UP UNTIL IT IS DONE CLICKING AND TURNING THE HEATED SEATS ON AND OFF. THE REGULATOR IS NOT BROKE. ALSO THE SIDE MIRRORS EVEN THOUGH THEY ARE PROGRAMMED WILL SOMETIMES JUST START MOVING AND ACT LIKE IT CANT MOVE ANYMORE AND MAKE A NOISE. THE MUSIC AND OR RADIO WILL GO OUT WHILE ITS TURNED ON, IT WILL CUT IN AND OUT AND THEN AFTER DRIVING A WHILE IT WONT CUT IN AND OUT. FOR THE WINDOW TO JUST ROLL DOWN IT USUALLY HAPPENS AFTER IT SAT ALL NIGHT. WONT GO BACK UP FOR AT LEAST 2 MINUTES AND YOU CAN SEE THE DOOR LIGHTS FLICKER AND CLICK.”
“THE DASH CLUSTER DOES NOT WORK CORRECTLY, ALL THE LIGHTS TURN ON AND DOORS LOCK WHILE I AM DRIVING ON IN TOWN OR ON THE HIGHWAY , ALL THE GAUGES COME ON AT ONCE WHILE DRIVING ON THE STREETS AT RANDOM TIMES.. THE REAR HAS AIRBAGS IN THE SUSPENSION AND AND AREN'T WORKING PROPERLY, I TOOK IT TO THE SHOP AND THEY SAID IT HAD 30 CODES ON THE DIAGNOSTIC MACHINE BUT THEY COULDN'T FIND THE PROBLEM”
Showing 6 of 136 reports. Read every report on NHTSA.gov.
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 28, 2026NHTSA vehicle page
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.