Question about 2005 Hummer H2

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Service 4wd light came on

I was driving my 2005 h2 sut today and i saw the service 4wd light came on,iam just wondering what cause for the light to came on,also would like to know how to correct it?

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  • Anonymous Apr 15, 2009

    My 2003 H2 has a "SERVICE 4WD" console warning light on. How do I fix it?

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5 Suggested Answers

Molson02536
  • 3854 Answers

SOURCE: 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.

Posted on Jun 15, 2009

Ajkill
  • 2035 Answers

SOURCE: hummer h2 2003 55000 mill

Remote the battery wire from the car for 20 minutes make and plug it back this will reset the computer of the car if the light is on you need to service center and get it checked....................

Posted on Jun 08, 2008

  • 19 Answers

SOURCE: Hummer H2 SUT DTC Code C0563

C0563 - Calibration ROM Checksum Error
Not sure what it means but thats what I found when I looked it up

Posted on Oct 28, 2008

autodr
  • 260 Answers

SOURCE: DTC P0420

first, code b0100 is a fault in the restraint system. front end sensor, restraint sensing diagnostic module or communication between the 2 are suspect problems po420 is an efficiency problem with catalytic converter. most likely would need new converter, but exhaust leaks and oxygen sensor malfuctions can also set code. if this vehicle is under 80,000 miles and does need converter, dealer should repair for free under warranty. that is federally mandated.

Posted on Dec 04, 2008

  • 1 Answer

SOURCE: I just got my 2007 hummer h2 sut, but I don't know how to turn on

The fog lights run by default during the day in the "auto" position. To activate the headlights and the fog lights you need modify the jumper position in the fuse box for the lights. "see fuse box diagram"

Posted on Jun 26, 2009

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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
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Jan 12, 2010 | 2005 Hummer H2

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I need to remove the luggage racks from my 2007 Hummer h2 SUT


I have the same vehicle and was able to remove mine with the following steps: 1) remove light behind each rear of luggage rack rail using phillips screwdriver (one screw each side). 2) remove molding underneath each light using T20 torx driver (2 screws each side). 3) Loosen cross rails nobs. 4) Side cross rails off of roof.

Nov 27, 2009 | 2007 Hummer H2 SUT

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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

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Hummer H2 SUT DTC Code C0563


u need to change/service the air compressor in ur car.
or it might be the air bags/sensors thats located next to the rear tires.

May 29, 2009 | 2005 Hummer H2

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How check hummer 2005 sut H2 before to buy


is the car low milage ? by taking it for a drive you will be able to tell if everything works and stepping on the brakes lightly you will be able to tell if there is any noise coming from them.. take it on the road and step down on it to see if it accelerates good.. make sure it shifts smooth and there should be no smoke coming from anyhere.. check under the hood to see if it is clean everywhere. this tells you if it has been taken care of .windshield broken? check for chips here also.. interior clean ? this lets us know if its been taken care of also... if its late model and low miles you probably will be ok.. driving it will tell the story about how it is going to run ... holler if you have more.. Jerry

Apr 28, 2009 | 2007 Hummer H2 SUT

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4WD switch not working on a Hummer H2


Same thing happened with my H2 2003 model, no lights above the 4wd buttons and i can't switch between high and low 4wd.
did u know what is the problem ?

Mar 25, 2009 | 2005 Hummer H2

1 Answer

Hummer H2 SUT DTC Code C0563


C0563 - Calibration ROM Checksum Error
Not sure what it means but thats what I found when I looked it up

Oct 27, 2008 | 2005 Hummer H2

1 Answer

2005 H2 SUT problems


how often is the belt breaking? excess revolutions can cause premature wear. flushing the cooling system with the proper cleaners, refilling with dexcool and DISTILLED water can reduce the engine temp in h1's by at least 10 degrees in the desert. this i have done. also if the cooler for the transmission has not been upgraded to handle the new trans you will still get an overheat. you can also put a electric fan on the trans cooler. the belt may not be aligned properly.

Aug 01, 2008 | 2005 Hummer H2

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