Question about 2008 Hummer H3

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H3 hummer battery dead and doors would not open with keys 2008

Doors wouldn't open with key and battery dead

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  • 111 Answers

Go under it put power to the starter ,it will activate the system

Posted on Mar 27, 2014


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Posted on Jan 02, 2017

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SOURCE: 2009 Hummer h3 won't start

I can't get my hummer to start! put in a nwe battery and starter and it still will not crank!........ when I turn the key I get nothing.......

1 could it be the init.switch
2 or some other issue

Posted on Jan 30, 2009

  • 11 Answers

SOURCE: i want to reset the hummer 2008 h3's dashboard

switch ignition on. press instrument switch on off until oill reset appears then hold switch down for about 5 seconds and listen for faint bleeping noise oil is then reset.

Posted on Jul 20, 2009

  • 255 Answers

SOURCE: 2008 Hummer H3 The trackion failed light on

clean abs sensors at each wheel.

Posted on Sep 08, 2009

  • 474 Answers

SOURCE: hummer H3 (2008) does not start and error message

your anti theft is activated. consualt owners manual

Posted on Nov 28, 2009

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SOURCE: Hummer H3 ReProgram Garage Door Opener forOLD Genie





Posted on May 27, 2010

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1 Answer

Why will my 2008 hummer H3 door locks with key but will not unlock with key. the key will not turn to unlock

The lock assembly in the door is faulty. It gets tricky since Hummers are no longer in production. Changing the door lock cylinders will get you a different key than the ignition. Any GM dealer should be able to get you the parts.

Nov 19, 2015 | 2008 Hummer H3 Alpha

1 Answer

H3 battery dead and doors are locked

Try charging the battery a bit by snaking the positive jumper cable underneath to the starter post where the big cable connects, and the negative jumper cable to a good ground on the frame.

Feb 05, 2014 | 2007 Hummer H3

1 Answer

Can hummer h3 tailgate be opened from inside? The rear door/tailgate handle just snapped off.

Yes you can open the tailgate from the inside,if you open the housing that holds the jack and wheel spanner then you will find the hatch to open the tail gate

Nov 07, 2011 | 2008 Hummer H3

3 Answers

I have a 2006 hummer h-3 my drivers side window does not work and my electric lock will not lock doors. i removed the switch assembly out of my 2006 and pluged it into my brothers 2008 h-3 and the switch...

Clean your battery posts and cables. Sounds crazy but this is a very common problem with the h3 and other vehicles. If you battery is old get checked and or replace it. Once battery cleaned and proper connection is restored, it may take a bit of time for the battery power to build up enough to operate properly again.

Jan 03, 2011 | 2008 Hummer H3

1 Answer

When, a key lock sing blinks on the dash of hummer H3, and will not start, what can i do ?

make sure all windows are closed
get out of the Hummer, using the central lock, lock the 4 doors
close the door
then open it with the KEY
then try to Start the Hummer.
(repeat several times till it works)
I am facing this problem now and that is the only soluttion I found. Untill i buy a new remote key that got stolen :S

In order not to fall in this problem, avoid opening the hummer with the key and directly locking the four doors using the central lock before starting it.

Sep 04, 2010 | 2006 Hummer H3

1 Answer

2006 H3 battery keeps going dead overnight. Battery was replaced last year. Took it to a dealer and they could not find anything wrong.

something is being left on when you shut off the key. fastest way to tell this is to unhook the positive post of your battery and hook up a multimeter between the post and the cable. with the key off the amps should be almost zero (the radio uses a very small amount for memory) also take the battery out and have it load tested.

Aug 19, 2010 | 2006 Hummer H3

1 Answer

The key is stuck in my hummer h3 nothing works how do i fix it

you have to jump start it. the battery is dead.

Oct 07, 2009 | 2008 Hummer H3

3 Answers

Cant get the key out of my h3

spray wd 40 into hole let sit try again if no go return to dealer for new ignition cylinder

Jul 06, 2009 | 2008 Hummer H3

3 Answers

I can't remove the key from the ignition and I can't start the vehicle. It seems like some anti-theft system.

wow - I just happen to know this one -
The battery was dead on my H2 - which I didn't know until I put the key in the ignition and tried to start it... then found that I couldn't take the key out of the ignition and thought the key was 'stuck' on top of it all. I called the Hummer dealership and they said that's what happens when the battery is dead - the key gets locked into the ignition until the battery is jumped or replaced...

Jun 29, 2009 | 2008 Hummer H3

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