Question about 2005 GMC Yukon XL

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2005 GMC yukon xl slt transfer case drops out of 2 wheel hi but will work in auto 4 wheel

2 wheel hi drops out of gear in transfer case push button 2w hi only blinks auto 4 wh works ok

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There is a transfer case control computer in the dash on the left side around the headlight control,they will cause the blinking lights and not shifting.

Posted on Mar 31, 2014

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Posted on Jan 02, 2017

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1 Answer

How do I use the 4 wheel drive on my GMC Yukon 2004. What dash button turns the 4 wheel drive on?


Hi, depending on the vehicle, there can be different controls. Standard control, 4hi, use in slippery conditions, never on dry pavement. Just push the button, and it will engage. 4low is for extreme conditons and the transmission must be in neuteral to engage 4lo. If you have auto 4wd button, just press the button in slippery conditions. If you have a denali, it is all wheel drive, and there are no buttons to push. So, depending on the model, there are multiple ways, but pushing the button engages it. Good luck...Goop

Dec 12, 2010 | 2001 GMC Yukon XL

1 Answer

I replaced the 4 wheel drive push button switch on the dash and the trasfer case will not disengage !


Hi, there could be codes in the transfer case control module for the module, or an encoder motor. If you have replaced the switch with the correct switch, I would disconnect the battery, to clear the codes, and reconnect, and retry. If this does not work, you need to have it scanned. Good luck...Coop

Dec 12, 2010 | 2003 GMC Yukon XL

1 Answer

2005 GMC Yukon XL- Service 4 WD light comes on and the indicator light is not lit up nor can I change from 2WD to 4WD. It is push button selection with the option of Auto.


It is probably the encoder motor attached to the transfere case. look under the vehicle to see if there is signs of corrosion between the encoder motor and transfere case.

Nov 11, 2010 | GMC Yukon Cars & Trucks

1 Answer

GMC Yukon XL is stuck in auto 4wd. Service 4wd light is on message center.


First get the codes from the transfer case control module.This will help in diagnosing the problem.You can try pushing the 2hi and 4lo buttons simultaneously for 10 seconds.This should put the transfer case in neutral. Then try going to 2 hi.See if this will get it out of 4wd.Let me know what you find.If you need more help let me know Good luck.

Mar 02, 2010 | 2001 GMC Yukon XL

2 Answers

I have GMC yukon xl 2005 and I got problem on 4 wheel drive.


if i am not mistaking these have the vacuum module on the front differential check it it is probably bad common problem on these trucks from 96 and up if it is the electronic type it could be one of three things the switch on the dash, motor on transfer case, or the electronic module for the 4 wheel drive.

Aug 25, 2009 | 2005 GMC Yukon Xl Denali

1 Answer

2001 Yukon XL SLT 4 speed Auto Transmission shift problem!


Sam,

I would start with a transmission fliud and filter service.

I would then have the trasnmission checked out by a transmission shop. The transmission most of the time has the direct drum band is starting to go. The shops can rebuild it no problem, This is a very common failure wiith the trasnmission.

Good Luck

Aug 16, 2009 | 2002 GMC Sierra 1500

2 Answers

4 wheel drive is out


maybe another 4x4 transmission or transfer case?

Jan 28, 2009 | 2001 GMC Yukon XL

2 Answers

2000 gmc yukon xl 4x4 wont engage


try replacing decoder module on transfer case they are known to go bad causing same problem.

Jan 02, 2009 | 2000 GMC Yukon XL

1 Answer

2000 yukon xl. 4x4 wont engage


My 2000 Yukon XL with 5300 engine had same problem at 115,800 miles in Aug 2006(I bought the vehicle new January 2000)...My GMC dealer did diagnostic and replaced a faulty 4WD Transfer Case Shift Control. (reading from the service invoice) It was GM part number 15709327. Cost for the repair was $41.48 + labor $74.13, total was $115.71...it now has 165,000 on it and so far no problem and the 4WD works when I need it.

Dec 23, 2008 | 2000 GMC Yukon XL

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