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  1. V

    Power Seat Motor Connection

    On a 2006 GMC Yukon Denali XL, the driver power seat does not move forward and backward. There are three wires that seam to be pulled out of the motor. Does anyone have a schematic so I can attach the wires again?
  2. V

    Dexron III - Replacement for AWD Transfer Case

    The manual for my 06 Denali XL calls for 1.5 qts of Dexron III to be used in the transfer case. This vehicle is AWD. Since Dexron III isn't available anymore, what fluid type should I use? I read that at one point, GM recommended Dexron VI because it was supposed to be backwards compatible, but...
  3. V

    Road Noise

    I recently purchased a 2006 Yukon Denali XL with 175K miles. I don't think too much has been done to the truck other than general maintenance. I'm hearing and feeling some road noise that feels like friction in the front end when going highway speeds. It has a low-pitched roaring sound. On a...
  4. V

    Cleaning Wheels

    I recently purchased a 2006 Denali XL. What is the best way to clean the factory chrome-like wheels? They look like chrome or polished aluminum. Is there a way to easily restore the finish to the center caps as well? Has anyone tried wrapping them with automotive chrome wrap?
  5. V

    Sharkfin antenna identification

    I need to replace a physically-broken shark fin antenna on the roof. I tried looking up the part number on a GM parts online sales hub and there are 4 options ranging from $62 to $165. How do I identify which one I need?
  6. V

    Reduced Engine Power P1125 & P2138

    2006 Denali XL - I changed the oil, started the car and the reduced engine power message came up. I pulled the codes - P1125 and P2138. Is this a throttle position sensor or a pedal position sensor issue?
  7. V

    Random Codes

    I have a new-to-me 2006 Yukon Denali XL and there are various codes. P0C8B (Transmission code or serial data gateway code), B1259 (Digital Radio Receiver code - aftermarket radio but it does have the door chime), B3531 (rear climate control panel code). Any idea what direction I need to go to...
  8. V

    Brake light issues

    I have a 2006 Yukon Denali XL. When pressing the brake pedal, a couple of bulbs in the third brake light assembly flash on and then immediately turn off even through the brake pedal remains pressed. The other brake lights do nothing. I have no power at the bulb sockets when pressing the brake...

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