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Electrical systemPart report

2003 GMC Envoy 360 Electrical system Problems

Complaints
3about this part
Share
38%of 8 total for the year
Median mileage
90,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the electrical system of the 2003 GMC Envoy 360, 38% of the 8 complaints for this model year. Where a mileage was given, the median is 90,000 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“The contact owns a 2003 Gmc ENVOY 360. The contact stated that while driving at 35 MPH, the check engine and reduce power warning lights illuminated. The contact also stated that the accelerator pedal failed to respond. The vehicle was restarted. The vehicle was taken to a dealer where it could not be diagnosed. No repairs were done. The manufacturer was not made aware of the failure. The failure mileage was 105,000.”

NHTSA complaint #10786526, filed 2015-10, 105,000 miles

“The contact owns a 2003 Gmc ENVOY 360. The contact stated that the turn signals failed to work in the rear of the vehicle. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 75,000.”

NHTSA complaint #10749414, filed 2015-08, 75,000 miles

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2007832%
2006545%
2005667%
2004229%
2003338%

Other parts of the 2003 GMC Envoy 360

Fuel system
3 complaints
Air bags
2 complaints
Exterior lighting
1 complaints
Transmission and drivetrain
1 complaints
Visibility (wipers, defrost, mirrors)
1 complaints

← All problems reported for the 2003 GMC Envoy 360

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology