Question about 2005 GMC Yukon

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Service 4WD on DIC will not turn off

How do I turn off the service 4wd on the display. Everything checked out fine but I can't get the warning to turn off

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You need to get an obd2 code reader so you can clear the code.

Posted on Jan 22, 2009

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Why can't I reset my check 4wd light on dash or move out of 2wd at all after replacing transfer case? Also motor cuts out and electronic throttle now won't open when won't start


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    GM 4WD Warning Light Issues - RepairPal

    repairpal.com > Car Care Advice > References
    Is your 4WD warning light on or a "Service 4WD System" message displayed? ...attempting to shift from 2WD high to 4WD low while the vehicle is moving), all the mode ... Resetting the TCCM may only be a temporary repair. ... The Bulb Check ...The mode switch on the dash will send a signal to the transfer case control ...

    How To Override Stuck 4WD On A GMC Vehicle, Transfer ...

    ? 10:55
    https://www.youtube.com/watch?v=qNQOt_JP78U
    Dec 29, 2014 - Uploaded by JamieJones TheCarMan
    How To Override Stuck 4WD On A GMC Vehicle, Transfer CaseControl ... My 07 GMC Yukon is stuck in 4 wheel drive low, can I do this same process on it? .... has been changed, the module was reset, and the actuator were all replaced. ... is being slughish when i start off from red light or stop sign but after ...

Jan 18, 2016 | Cars & Trucks

2 Answers

Why is the service 4WD message on all the time and diff lock light flashes and dos not lock?


Hummer 4wd service light reset Questions & Answers - Fixya

www.fixya.com > Forum > Tags > 4wd service light reset
Hummer h2 2003 55000 mill ... service 4wd the liht is on all time Remote the battery wire from the car for 20 ... My 2006 H3 will not come out of 4 wheel drive?

Sep 22, 2015 | 2006 Hummer H2

1 Answer

96 gmc 4wheel drive not engaging


There are many vehicles which notice same issue with 4wd not engaging in low or high mode.I suggest you few help links related to these issue,with there troubleshooting details and solutions.
Car will not go into 4WD high or 4WD low? http://schematicsdiagram.blogspot.com/2011/12/car-will-not-go-into-4wd-high-or-4wd.html

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No 4x4 light on dash?

http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html

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4 wheel drive system will not disengage?

http://technoanswers.blogspot.com/2012/01/4-wheel-drive-system-will-not-disengage.html

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4WD light is flashing and beeping? NO 4WD high?

http://schematicsdiagram.blogspot.in/2012/02/4wd-light-is-flashing-and-beeping-no.html

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2002 Jeep Wrangler: 4WD Idiot Light is ON?

http://technoanswers.blogspot.in/2012/06/2002-jeep-wrangler-4wd-idiot-light-is.html

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Traction control switch will not engage on 4WD High or Low
http://whoisbyme.blogspot.com/2012/10/traction-control-switch-will-not-engage.html

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Service 4wd warning light on Dash? http://howtobyme.blogspot.com/2011/11/service-4wd-warning-light-on-dash.html

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Car automatically switches to 4wd low?

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These are the help links related to your issue.Going through these help links,will guide you to troubleshoot and solve the issue noticed on your car.
Keep updated for more help.
Thanks.

Oct 17, 2012 | Chevrolet Cars & Trucks

1 Answer

Jeep stuck in 4wd High


For troubleshooting these issue,Few related help links are provided below.Click the link below and go through its troubleshooting procedure:----Jeep 4WD Idiot Light is ON? http://technoanswers.blogspot.in/2012/06/2002-jeep-wrangler-4wd-idiot-light-is.html
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Service 4wd warning light on Dash? http://howtobyme.blogspot.com/2011/11/service-4wd-warning-light-on-dash.html
---------------Car automatically switches to 4wd low? ------------Car will not go into 4WD high or 4WD low? http://schematicsdiagram.blogspot.com/2011/12/car-will-not-go-into-4wd-high-or-4wd.html
----------
No 4x4 light on dash?

http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html

---------------
4 wheel drive system will not disengage?

http://technoanswers.blogspot.com/2012/01/4-wheel-drive-system-will-not-disengage.html

------------
4WD light is flashing and beeping? NO 4WD high? http://schematicsdiagram.blogspot.in/2012/02/4wd-light-is-flashing-and-beeping-no.html
----------------This will help.Thanks.

Jul 17, 2012 | 1988 Jeep Cherokee

1 Answer

My isuzu dmax 4x4 manual (year model 2004) have a problem . . . "CHECK 4WD" warning light is always on. isuzu service shop tells me that the 4wd module and actuator needs to be replaced upon...


If the tech 2 device is indicating the code for 4wd module then it has to be replaced.Get the module and its connections checked before going to replace the module.If the module connections are getting short or loose then getting the connections repaired solves the problem.But most probably when it shows module problem,the module has to be replaced.The actual testing procedure is as follows:--- If you have an ODBII code reader, you can check if there are any codes stored in the ECU. There is also a diagnostics mode you can go into for transfer case issues:

1. Warm up the engine. Turn it off.
2. Turn the ignition switch on and off at least twice, then turn the ignition switch to off.
3. Shift into park.
4. Turn the 4WD selector to Auto.
5. Turn the ignition switch to on. Do not start engine.
6. Is the 4WD warning lamp on? Continue if no.
7. Shift into reverse.
8. Turn the 4WD selector to 2WD, Auto, 2WD.
9. Shift into drive.
10. Turn the 4WD selector to 4H, Auto, 4H.
11. Shift into neutral.
12. Turn the 4WD selector to Auto.
13. Shift into park.
14. The 4WD indicator light will come on for 2.5 seconds, then go out. It will then flash a series of times to represent a one or two digit code, with half-second delays within a number and 1 second delay between numbers. e.g. to represent the code 23, it will flash twice with 0.5 seconds between flashes, wait a second, then flash three times with 0.5 seconds between them.Get it rechecked again by disconnecting the 4wd module and reconnecting again,. --------------------Thank you.

Jan 24, 2011 | Isuzu Pickup Cars & Trucks

1 Answer

I have a 2005 GMC Sierra. After driving for a couple of miles the 'service 4wd' warning will display and not go away. The 4wd is fine. Do I need to reset a chip?


BY YOU HAVING AUTOMATIC 4 WHEEL DRIVE.YOU HAVE A SHIFT CONTROL MODULE IN TRANSFER CASE.IT CONTROLS YOUR 4 WHEEL DRIVE SYSTEM BY RECEIVING INFORMATION FROM SPEED SENSOR ON TRANSFER CASE OUT PUT SHAFT.TAKE IT TO DEALERSHIP.THEY WILL HAVE TO FIX IT.

Jul 20, 2009 | 2005 GMC Sierra

1 Answer

GMC Sierra "Service 4WD" message


You should be fine to drive it home, as long as you don't drive it like that all year. There are a few things that activate the 4WD and one of the components has a failure and needs to be addressed. Good luck and hope this helps.

Jun 15, 2009 | 2005 GMC Sierra 2500HD 4WD

2 Answers

I lost my 4 wheel dr ability at the control center. I can no longer select 2 wheel or 4 wheel. The indicator lights do not get give me an option and I get a warning from the (dic) that says 4wd service...


Well, just got back from the dealership, $762.00 later the problem is supposedly fixed. We'll see. They replaced the actuator ($550.00 part only) They also said by replacing this there is the potential to short out the brain box that controls the 4wd system. I have a 2005 Yukon and this problem first occurred around 38K miles last winter. When I took it in then since it was intermittent they could not identify exactly what it was. This time it had been inop for 3-4 days. I went to the dealer this morning and pulled in the service drive and shut the veh off, I could not get it in until 1pm so I left and ran some errands. Well low and behold when I started it to leave the service drive it was working. After making several stops it was on and off every other time I started it. Oh an by the way it is not covered by the 100k powetrain warranty since it is an "electrical problem." BS in my book. When I left the dealership I asked the service advisor if this one would be good for another 38k miles, he said Yes, well i should f-ing hope so. My 99' yukon had the same type 4wd system and it last more than 158k and never had an issue with the 4wd. I guess factory workers get 35 bucks an hour, for a job a trained monkey could do, but there parts are sh-t. No bail out for GM in my book, with this kind a **** the deserve to go bankrupt. As you can tell I am highly upset about it. In researching this I have found numerous complaints for the same issue and there are several TSB's from GM regarding the issue, but no recall, just bend over and take it.

Dec 05, 2008 | 2003 GMC Sierra 2500HD

4 Answers

Service 4WD LIGHT IS ON


I have a 2002 chevy trailblazer LT 4.2 l w/ approx 85000 miles on it and I left key in car after rolling down windows for about 2 hours drainging battery. After charging battery and running car for a little bit the service 4 wheel drive light came on. I have had no problems with the truck and I am wondering if it is because the battery was drained and the computer needs to be reset or something?

Oct 17, 2008 | 1999 Chevrolet Silverado 1500

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