Which parts fail
Components named in complaints (battery, alternator, wiring, ignition, instrument cluster, infotainment).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2003 GMC Envoy XL owners, lightly cleaned up (personal details are redacted by NHTSA).
I was in a mva July 22, 2015 I was tboned on the drivers side and the went headon with a light pole and my airbags never deployed. I had many problems with the electrical in the truck since I purchased the truck. It was an as is with no warranty and I wasnt given any knowledge of problems or recalls. I suffered extensive injuries to my body and my truck was a total loss $10000 in damages to the vehicle.
On 2/15/07 I was driving to work at approximately 50mph when all of a sudden the steering went out, brakes locked up, all gauges went erratic bouncing from side to side and the heater started blowing cold air upon this happening I nearly went into a creek however struggling did manage to safely get the vehicle off the side of the road in a ditch. I had the vehicle towed to the local dealer when upon diagnosis the service manager informed me that the ignition switch had failed and all of the above components were tied into the switch. I at my own expense had the ignition replaced and the RPM gauge still does not work. I contacted GMC the very day of the incident to make them aware of this safety issue only to be bounced around to several different offices, none of which have made this safety issue a top priority. …
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.
While driving on the highway at 65 MPH, the third row floor got really hot and my children were saying their feet were really hot and we smelled something like plastic melting and my 15 year old cousins boot melted and the carpet melted and you can see metal. Once we arrived home the blinker stayed on and did not shut off until the battery died. Just before this happed the vehicle lost power and my husband had to put his foot on the gas all the way.
Mainly in wet weather, dashboard alerts chime and lights flash. Doesn't stop until weather is better. I'm afraid there is a short somewhere. Bought vehicle in December, 2013. Dealer won't help. I don't know what to do. Please advise. I can't find a recall regarding this. But have read several complaints and reviews with this same issue. I did not know about this when I bought it because it was winter at the time. Very frustrated and unhappy.
Dash indicator lights come on and stay on when temperatures are cold, mostly air bag, ABS, parking brake light, all gauges do not work except speedometer. This problem has no trend other than when it is cold outside, could be coincidental. At times the check engine light was on with other lights. My vehicle only had 18,000 miles on it when this started, but the 3 year warranty was over. GMC will not troubleshoot this problem unless I pay them almost $100 to start, and then a hourly fee. At times, these conditions exist and then later the instruments start working. Does not seem to correlate to vehicle temperature. Lights often stay on during entire trip and gauges are all off. When everything suddenly starts working correctly it does not appear to be because of a bump or warming of the vehicle. …
I got home one evening and when I turned the ignition key to shut the truck off the engine continued to run. I was concerned; as I could not leave the vehicle running all night; at that point I tried to engage the key again and the vehicle was still running . I became concerned and started to fiddle with the knobs and was surprised when after turning the highlight switch the engine shut off. The next morning I hestitately attempted to start the vehicle and when I was successful I headed straight to the GMC dealer. The dealer said that it was a wiring problem and the ignition wiring had to be redone; (the cost was $1600.00) I started a dialog with GM and they engaged me with several conversations; which LED me to believe that they would pick up the cost; as electrical components were not part of any scheduled maintenance that I as a owner would be responsible for. …
Problems is associated with the instrument panel gauges. Specifically with the RPM gauge. It reflects erratic RPM's when it first started the needle would raise to between 5-6K rpms when at idle, after approx 2 weeks it would reset itself to normal, approx 2-3 weeks later it would register approx 6-7K rpms then reset itself once again to normal. Now it is pegged all the way around and pointing due south, it attempts to reset itself but will not. I am also seeing erratic indications on the fuel gauge. On the edmunds Envoy forum there are quite a few Envoy owners that are having the same problems, some are having speedometer level problems. Was in connect with GMC representative and she could/would not help since my vehicle was out of warranty. I even suggested that they pay at least 1/2 the cost of repairs. …
I have a 2003 GMC Envoy, and the speedometer is broken. Due to research on the web I'm seeing numerous people having the same issue. I have put a call into GM they are total ignorant (&*(*_*. This is a safety issue and not something I broke on my own or wore out. I have less than 70,000 miles on my vehicle. I called last year when it happened and the lady was one rude '!@#$%!! Now this is a major problem. I have to get it fixed for inspection and it's not going to pass with it broken. I have no real income both my husband and I are unemployed!! So where is the money coming from? A credit card I can't pay off to begin with. Our taxes bailed them out, the least they can do is provide a safe vehicle, and the speedometer is not safe. I shouldn't have to pay for defective merchandise/parts!!! Help the poor folk here!!! This is a safety problem. …
My driver side locks and window controls have ceased to operate. Evidently fluid May enter the driver's door module, causing corrosion that could result in a short circuit in the door module which caused the power door lock and power window switches to become inoperative. My concern is that the short May also cause overheating, which could melt components of the door module, producing an odor, smoke, or a fire. I looked on the internet and there is a recall from GM and dealers will inspect the driver's door module, if it is functioning correctly, a protective coating will be applied. If the module is not functioning correctly, it will be replaced. The GM recall number is 12180. I called GM and they told me that although this exact problem is happening to my automobile...my car is not covered. I am afraid that my car will catch on fire.
Electrical complaints in other Envoy XL years
Frequently asked questions
How common are electrical problems on the 2003 GMC Envoy XL?
NHTSA has 53 complaints about the electrical system of the 2003 GMC Envoy XL, 23% of the model year's 228 complaints. The component named most often is instrument cluster/panel (10 mentions).
Is there a recall for 2003 GMC Envoy XL electrical problems?
No. NHTSA lists no electrical system recall for the 2003 GMC Envoy XL, though it has 3 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2003 GMC Envoy XL electrical problems start?
Half of the complaints with a recorded mileage happened before about 92,000 miles, and 8% before 25,000 miles.
Is it dangerous?
Owners linked 2 crashes, 1 fire and 10 injuries to electrical system problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.