2006 GMC Yukon XL 1500 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2006 GMC Yukon XL 1500

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2006 GMC Yukon XL 1500 Problems

Instrument Panel Lights Flickering and Exterior Lights Intermittent

The headlight switch used on the GMC Yukon XL 1500 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. 

Service 4WD Message May be Displayed

The 4WD transfer case encoder motor position sensor or the selector switch may fail causing the service 4WD message to be displayed. Fault code(s) stored in the transfer case control module will be of assistance in determining the exact fault causing the message to be displayed.

Sunroof May Stop Working

The sunroof may stop working for various different reasons. Our technicians tell us it is often better to replace the complete sunroof assembly than to try and repair the old one.

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2006 GMC Yukon XL 1500 Questions

Why do Dash Lights not turn off without taking out fuse? (1 answer)

Truck will turn over but not start if fuse is out. Dome Lights come on and warning tone randomly sounds while driving as if door is open.

Front blower doesn,t come on. (1 answer)

Front heater blower does not come on, rear heater works fine. I can adjust the blower speed however blower never comes on. All the fuses look fine.. what do I need to check next.

Ticking noise (1 answer)

I have noticed a very annoying ticking noise in my vehicle and was told it could be the motor knocking or an exhaust leak from the motor, it isnt as loud as a knocking motor...

Thank you

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2006 GMC Yukon XL 1500 Recalls

Fuel May Leak from Fuel Rail

The retainer clip for the fuel rail pulse damper may fracture and allow the damper to come loose from the fuel rail. A fuel leak in the presence of an ignition source may result in a fire. Dealers will replace the engine fuel rail pulse damper free of charge. The recall began August 31, 2006. The GM recall number is 06080.

Tire and Loading Information Labels Are Innacurate

The tire and loading information label on the driver's side door frame may be inaccurate. A misprinted label could lead to overloading of the vehicle, which could possibly lead to tire failure and a crash. Owners will be provided with corrected labels and installation instructions. At customers' request, a dealer can install the label for them. The recall began March 31, 2006. The GM recall number is 05109.

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