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Transmission and drivetrainPart report

2003 GMC Yukon Denali Transmission and drivetrain Problems

Complaints
3about this part
Share
4%of 72 total for the year
Median mileage
135,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the transmission and drivetrain of the 2003 GMC Yukon Denali, 4% of the 72 complaints for this model year. Where a mileage was given, the median is 135,000 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 Yukon Denali. The contact stated that the vehicle decelerated and stalled. The reduced engine power indicator illuminated. The vehicle was taken to the dealer six times to repair the throttle body, pedal switch, and wiring harness, but the failure recurred. The failure mileage was 220,000. Updated 10/02/14 updated 3/9/2015”

NHTSA complaint #10615663, filed 2014-07, 220,000 miles

“The contact owns a 2003 Gmc Yukon Denali. The contact stated that everytime he activated his left turn signal, the hazard warning lights would illuminate. Secondly, the gauges on the instrument control panel were inoperative. Thirdly, the battery constantly failed without warning. Lastly, when switching gears on the vehicle, the contact heard a loud knocking noise. He took the vehicle to the dealer on numerous occasions and a technician replaced the battery and alternator twice, and the entire instrument control panel as well. …”

NHTSA complaint #10234681, filed 2008-07, 33,000 miles

Related service bulletins

Transmission and drivetrain: other model years

YearComplaintsShare of year
2017217%
2016422%
2015811%
201214%
201111%
201012%
200859%
200776%
2006210%
2005612%
200422%
200334%
200113%
200016%
199927%

Other parts of the 2003 GMC Yukon Denali

Electrical system
25 complaints
Brakes
18 complaints
Engine
8 complaints
Electronic stability control
7 complaints
Vehicle speed control
5 complaints
Engine cooling
4 complaints
Air bags
3 complaints
Exterior lighting
3 complaints
Visibility (wipers, defrost, mirrors)
3 complaints
Other or unknown
2 complaints
Seat belts
2 complaints
Steering
2 complaints

← All problems reported for the 2003 GMC Yukon Denali

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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