2001 GMC Yukon XL Denali Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2001 GMC Yukon XL Denali
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2001 GMC Yukon XL Denali ProblemsImproper HVAC Temperature and/or Air Delivery Due to Failed Mode Door Actuator
One or more heater & AC (HVAC) temperature and/or air delivery mode door actuator may fail, resulting in improper temperature or air delivery. If this occurs, fault code(s) should be stored in the HVAC control module which should assist in diagnoses.
The headlight switch used on the GMC Yukon XL Denali is known to fail through normal operation. Since the headlight switch is also integrated into the interior lights, a malfunctioning switch can cause issues with interior lights as well.
- Symptoms of a failed headlight switch include:
- Headlights and taillights failing to turn on or off
- Interior lights flicker, or fail to turn on or off
- Gauge cluster lighting off or flickering with headlights on
- Parking light malfunctions
This issue is well known with General Motors Trucks and SUVs, and is solved by testing and, if needed, replacing the headlight/dimmer switch. Bad grounding wires at the tail-lights, and dirty/corroded tow package wires can also lead to some of these issues.
The rear window defogger may stop working due to a wire terminal broken off of the rear glass. Our technicians tell us that terminal can be reattached using a special glue or silver solder.
2001 GMC Yukon XL Denali Questionswhy will my vehicle not go into reverse? (1 answer)
This occurred when I stopped and put it into reverse. It will go into drive but makes a grinding noise.
bright seems ok
Will this vehicle function properly as a 2 wheel drive vehicle if I remove the drive chain from the transfer case?
2001 GMC Yukon XL Denali RecallsGM Recalls 2000-2001 1500-2500 Trucks and SUVs Due to Fuel Pump Wiring Overheating
The wiring to the fuel pump may overheat, which may cause multiple concerns. The fuse for the pump may blow, which will prevent the vehicle from starting and running. A check engine light may come on from connector damage. Fuel may leak out of the connector body and create a fire hazard. Dealers will remove the fuel tank and remove the module reservoir assemblies from the fuel tank, and install a new service kit.