"How reliable is the 2003 Gmc Yukon Denali Xl?"

"Based on 52 NHTSA complaints, the 2003 Gmc Yukon Denali Xl has a median complaint mileage of 145000 miles. The most common issue is SERVICE BRAKES."

"What are common problems with the 2003 Gmc Yukon Denali Xl?"

"The most frequently reported component in NHTSA complaints for the 2003 Gmc Yukon Denali Xl is SERVICE BRAKES, accounting for a significant portion of the 52 total complaints filed."

2003 Gmc Yukon Denali Xl: Reliability Data

Source: NHTSA — 52 complaints

Total Complaints

145,000mi

Median Mileage

SERVICE BRAKES

Top Issue

Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

90,000 25th Percentile

145,000 Median Mileage

181,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

SERVICE BRAKES

ELECTRONIC STABILITY CONTROL (ESC)

ENGINE

ELECTRICAL SYSTEM

ENGINE AND ENGINE COOLING

VEHICLE SPEED CONTROL

SERVICE BRAKES, HYDRAULIC

STEERING

ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

POWER TRAIN

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"PARKING BRAKE INEFFECTIVE. DOES NOT HOLD / STOP VEHICLE. FAILED AT APPROXIMATELY 70-90K MILES. NOTICED SIMILAR COMPLAINTS IN DATABASE. REPAIRS HAVE NOT BEEN MADE. *TR"

"ERRATIC SPEED ODOMETER. SPEED GAUGE SLOW TO ZERO AND OR DOES NOT ZERO. SPEED INACCURATE DUE TO NON ZEROING PROPERLY. RESETTING THE LOGIC BY TURNING IGNTIION ON/OFF REPEATEDLY RESETS THE GAUGE. PROBLEM STARTED @ APPROX 100,000 MILES AND AS BECOME MORE PERSISTENT. I HAVE HEARD AND READ SIMILAR REPORT..."

"TL*THE CONTACT OWNS A 2003 GMC YUKON DENALI. WHILE DRIVING AT APPROXIMATELY 65 MPH, THE ENGINE SHUT DOWN COMPLETELY WITH NO PRIOR WARNING. THE CONTACT WAS ABLE TO GET THE VEHICLE TO THE SIDE OF THE ROAD AND HAD IT TOWED TO AN AUTHORIZED DEALERSHIP. THE DEALER STATED THAT ALTHOUGH NOT CERTAIN, THE FU..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28