PRIVATE For Sale / Trade Classifieds Sell/Trade your stuff for free! NO COMMERCIAL POSTS!

"Service 4wd" light on

Thread Tools
 
Search this Thread
 
  #1  
Old 02-05-2008, 12:39 PM
njbrat413's Avatar
Thread Starter
Join Date: Jan 2007
Posts: 2
Default "Service 4wd" light on

Can anyone tell me if they've had that warning reading come on their H2 before and what it might mean.
Thanks,
 
  #2  
Old 02-05-2008, 02:24 PM
Muddydawg75's Avatar
Super Moderator
Join Date: Mar 2007
Location: Red Lion, PA
Posts: 11,001
Default RE: "Service 4wd" light on

It means you need to take it to the shop to diagnose it... that can be anything in the system... and has been discussed a few times here if you want to search for it.
 
  #3  
Old 08-09-2012, 12:08 AM
Duaner's Avatar
Junior Member
Join Date: Aug 2012
Posts: 5
Default

ya i am agree with Muddydawg75 , that you need to diagnose it, a really experienced professional can sort out this problem and can fix it, so before it becomes worse , you should go to the shop to check the problem.
 
  #4  
Old 09-02-2012, 08:08 PM
2004H2's Avatar
Senior Member
Join Date: Sep 2010
Location: Coconut Creek, Florida
Posts: 173
Default

Go to napa/auto zone they will put a code reader on your truck and tell you whats wrong with it, they wont clear the codes but will tell you what the coumputer in your truck is saying whats wrong.....
 
  #5  
Old 09-16-2012, 01:44 PM
ffks's Avatar
Junior Member
Join Date: Sep 2012
Posts: 3
Default h2 recent issues

I have 3 things that have recently occured if anyone knows the problem.

1. Right side (passenger) A/C blows HOT air. No matter where u turn the passenger climate control **** it's all hot air. Left (Driver side) is COLD.

2. When I turn my key off the driver seat contracts, you then must reset the seat position everytime you start it up.

3. The Air Suspension sometimes lowers when you turn the key off, next time you stop it doesn't. The air bags are not leaking, its something electrical?

Thanks for the help.
 
  #6  
Old 09-16-2012, 01:49 PM
Pdmiller's Avatar
Member
Join Date: Sep 2012
Location: Orting, Washington
Posts: 51
Default

mine had a service 4wd as well- -it was acting funny- red light neutral light lit up- then regular 4wd awd button lit up then back and forth-- sometimes the neutral red light is lit up while i am driving... wtf???
 
  #7  
Old 12-07-2012, 10:29 PM
rajendersingh40's Avatar
Junior Member
Join Date: Nov 2012
Posts: 10
Default

Dont have any idea regarding that stuff as dont have much used it in past i am also the new user of it and never got such a problem of it....
 
  #8  
Old 12-14-2012, 06:02 AM
melainefithian's Avatar
Junior Member
Join Date: Dec 2012
Posts: 1
Default Service 4wd light on

Best For me and i like this very much.
 
  #9  
Old 12-14-2012, 10:54 AM
nlhummer's Avatar
Senior Member
Join Date: Sep 2011
Posts: 399
Default

3. The Air Suspension sometimes lowers when you turn the key off, next time you stop it doesn't. The air bags are not leaking, its something electrical?
There are more things that can leak. My airbags were leaking so I had them replaced(bubbles on the bags) After that still sagging. Come to find out that one of the air supply lines was leaking too. I went back and they fixed for free.
 
  #10  
Old 02-16-2013, 03:56 PM
Join Date: Feb 2013
Location: Central Texas
Posts: 79
Default

Originally Posted by Pdmiller
mine had a service 4wd as well- -it was acting funny- red light neutral light lit up- then regular 4wd awd button lit up then back and forth-- sometimes the neutral red light is lit up while i am driving... wtf???
I had the same problem, I search the internet and found this on another hummer forum..here's the link..so I had a friend who works on 4 x 4 and had him looked at...he stated that the connector was loose, he pulled it out..cleaned it, had alot of dried mud, and placed it back..hadn't had any problem since then..this happen after another shop replaced my left hub assembly because the bearings weres shot.


SERVICE 4WD mystery finally solved - Hummer Forums by Elcova

Dan
 


Quick Reply: "Service 4wd" light on



All times are GMT -5. The time now is 03:27 PM.