2003 GMC Denali Exterior lighting Problems
- Complaints
- 2about this part
- Share
- 6%of 32 total for the year
- Median mileage
- 12,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the exterior lighting of the 2003 GMC Denali, 6% of the 32 complaints for this model year. Where a mileage was given, the median is 12,000 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 2015 (na) Gmc Denali. The contact stated that the exterior lighting was dim. The vehicle was taken to a dealer where it was diagnosed that the headlight bulbs failed and needed to be replaced. The vehicle was repaired, but the failure recurred. The manufacturer was notified of the failure. The failure mileage was approximately 12,000.”
NHTSA complaint #10849785, filed 2016-03, 12,000 milesRelated service bulletins
- 10249011Jan 12, 2024This informational bulletin provides information for dealers/technicians on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage.
- 10232136Feb 15, 2023This service bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Water Leaks and Replacement Guidelines.
Exterior lighting: other model years
Other parts of the 2003 GMC Denali
7 complaintsElectrical system
6 complaintsSteering
5 complaintsVehicle speed control
5 complaintsTransmission and drivetrain
3 complaintsElectronic stability control
2 complaintsEngine cooling
2 complaintsAir bags
1 complaintsEngine
1 complaintsEquipment
1 complaintsFuel system
1 complaintsSeat belts
1 complaints
← All problems reported for the 2003 GMC Denali
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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