(2005 ENVOY) ABOUT 1 MONTH AGO I NOTICED THAT MY HEADLIGHTS WERE DIMMING WHILE DRIVING AT NIGHT . THIS HAPPENED SPORADICALLY. WHEN THE LIGHTS DIM, THE HEAT SLOWS DOWN AS WELL. THE INTERIOR LIGHTS OCCASIONALLY DIM WHEN THIS HAPPENS, TOO. MY HUSBAND AND I THOUGHT IT MIGHT BE THE BATTERY AND STARTED TO LOOK AT THE BATTERY GAGE, WHILE ONE OF US KEPT AN EYE ON THE LIGHTS. THIS PROBLEM HAS HAPPENED ABOU…
2005 GMC Envoy electrical problems
severe 170 complaints filed with NHTSA · avg repair $850
Complaints
170
Recalls
0
Crashes
1
Avg fix
$850
What owners are reporting 9 most recent
AT VARIOUS SPEEDS INCLUDING AT REST, INSTRUMENT PANEL HAS FAILED AND THEN COME BACK UP AFTER CUTTING TRUCK OFF AND RESTARTING IT. NOW THE SPEEDOMETER AND TEMPERATURE GAUGES ARE GREATLY INACCURATE. THE SPEEDOMETER WORKS INTERMITTENTLY AND THE TEMPERATURE GAUGE IS ALWAYS SHOWING HOT. CONCERNING!!! *TR
SPEEDOMETER STUCK AT 60MPH WHILE TRAVELING. DIDN'T MATTER IF STOPPED, ACCELERATING, DECELERATING, OR TURNING VEHICLE OFF. TURNING OFF THE CAR AND RESTARTING IT SEEMED TO CAUSE THE SPEEDOMETER TO DECREASE, SOME, FINALLY GETTING IT TO REGISTER 20MPH. UPON RESTARTING THE VEHICLE IN THE MORNING THE SPEEDOMETER STILL REGISTERED 20 MPH AND UPON ACCELERATION THE SPEEDOMETER FLUCTUATED FINALLY SETTLING …
THE SPEEDOMETER CONSTANTLY SHOWS DIFFERENT SPEEDS. WILL BE DRIVING DOWN EXPRESSWAY AT 65MPH AND NEXT THING YOU KNOW IT SHOWS 90MPH SO YOU SLOW DOWN 65 AGAIN AND REALIZE THAT EVERYONE FLIES BY. THE BEST I CAN FIGURE IS IT WILL SUDDENLY SHOW A DIFFERENT SPEED THAN ONE IS ACTUALLY GOING FROM 20MPH LESS TO 40MPH MORE. DIFFERENT EVERY TIME. *TR
FUEL LIGHT STAYS ON CONSTANTLY & FUEL GAUGE ALWAYS SHOWING EMPTY WHEN VEHICLE RUNNING IN MOTION OR STATIONARY
SPEEDOMETER STOPPED WORKING CORRECTLY. *TR
MY WINDOW CONTROLS ON DRIVER SIDE WILL NOT ROLL DOWN ANY WINDOW; HOWEVER, YOU CAN ROLL DOWN ANY WINDOW FROM SPECIFIC DOOR CONTROL. WHEN I PUT DOWN THE PASSENGER SIDE WINDOW, WHILE PARKED, THE INDOOR LIGHTS STARTED FLASHING, THERE WERE CLICKING NOISES AND THE PASSENGER WINDOW WENT UP ALL BY ITSELF. TOTALLY FREAKED ME OUT! IT ONLY STOPPED WHEN I OPENED THE DRIVER SIDE DOOR. A COUPLE HOURS LATER I WA…
TL* THE CONTACT OWNS A 2005 GMC ENVOY. THE CONTACT STATED THAT THE AUTOMATIC DOOR LOCKS FAILED TO LOCK AND UNLOCK THE VEHICLE. IN ADDITION, THE REAR HATCH DOOR FAILED TO UNLOCK WHEN INITIATED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 88,000.
I HAD TROUBLE WITH THE GAUGE THAT SHOWS OVERHEATING.I TOOK THE CAR IN TO PUT IN A THERMOSTAT THINKING IT WAS THE PROBLEM,BUT WHEN I TOOK IT IN THEY SAID THAT MY CLUSTER WAS BAD AND THE GAUGES WERE MESSED UP.I PAID $392.00 FOR THE CLUSTER AND $100.00 FOR LABOR.I BOUGHT THIS VEHICLE USED WITH 119,000 MILES ON IT ON 6/20/2011 AND ON 2/23/2013 I HAD THE CLUSTER REPLACED WITH MILEAGE OF 132,356. I PUT …
Common questions
How serious is the electrical problem on the 2005 GMC Envoy?
It's a meaningful issue. 170 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.
At what mileage does the electrical typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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