2003 GMC Yukon Denali Engine cooling Problems
- Complaints
- 4about this part
- Share
- 6%of 72 total for the year
- Median mileage
- 107,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the engine cooling of the 2003 GMC Yukon Denali, 6% of the 72 complaints for this model year. Where a mileage was given, the median is 107,000 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.
“I have had multiple ongoing electrical issues with this vehicle. Starting in 2005, the exterior electronics (I.e. Signal lights, stop lights, head lights, etc) began to malfunction. For example, I would trigger the signal for one direction and all of the signals for all directions would trigger... Even pressing the brakes triggered all of the exterior signals. The dealer had a hard time isolating my problem, but after several visits, the dealer was finally able to diagnose and rectify it... They isolated it to a junction box where all of the electronics terminate. …”
NHTSA complaint #10440123, filed 2011-12, 97,000 miles“My 2003 Gmc denali is knocking in the engine and dealer say's it's normal and will not replace motor and my extended warranty is going to be up in a few hundred miles what do I do???”
NHTSA complaint #10198198, filed 2007-08, 92,000 miles“December 2008- instrument cluster went out- speedometer no longer working december 2008- battery gauge no longer working march 2009- stabilitrak issues...sometimes the stabilitrak would work and at times it would not work july 2009 to january 2010- reduced engine power (almost cause 2 wrecks) could not perform a diagnosis...could not read computer. Changed fuel pump. No more reduced engine power message august 2011- wheel bearing issues. …”
NHTSA complaint #10436741, filed 2011-11, 117,000 milesRelated service bulletins
- 10251887Mar 14, 2024This bulletin advises the technician of possible location of an internal coolant leak from a specific cylinder head and location.
- 10251890Mar 13, 2024This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank…
- 10250775Feb 22, 2024This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large…
- 10249579Jan 12, 2024This PI bulletin advises the technician on the proper way to install the pistons in an engine.
- 10242843Sep 1, 2023The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the…
- 10242262Aug 24, 2023This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and…
- 10235802Apr 24, 2023This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue.
- 10234141Mar 23, 2023This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue.
- 10234110Mar 17, 2023This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.
- 10228888Dec 14, 2022This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or…
Engine cooling: other model years
Other parts of the 2003 GMC Yukon Denali
25 complaintsBrakes
18 complaintsEngine
8 complaintsElectronic stability control
7 complaintsVehicle speed control
5 complaintsAir bags
3 complaintsExterior lighting
3 complaintsTransmission and drivetrain
3 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsOther or unknown
2 complaintsSeat belts
2 complaintsSteering
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 29, 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