Question about 2007 Hummer H3X

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Hummer H3 rear lights staying on

I've just noticed my rear lights on my Hummer H3 are still on and I've had the Hummer shut off for a few hours now. I tried starting it up and turning the lights on and off, but no luck.

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If it is the brake lights that are on check the brake light switch on the brake pedal

Posted on Apr 21, 2009


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I have a 2006 h3 hummer with no brake lights or turn signals. I have replaced the turn signal switch. Can anyone help me with this

Check switch on the brake pedal,check globes in the rear of car have power going to them,you will need a test light to test them.

Mar 29, 2017 | 2006 Hummer H3

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Head lights wont turn off 06 h3 hummer

If you pull the headlamp relay in under hood fuse box, that should kill the headlamps until you figure out the problem? I don't know if relay could be faulty? I'd want to check relay wiring circuit for ground?
Your bcm grounds the coil side of headlamp relay in order to energize. I'm not saying bcm has a problem? The bcm receives input from headlamp/dimmer switch telling it the headlamp relay should be grounded. You might check for bcm or communication trouble codes.

Oct 15, 2016 | 2006 Hummer H3

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My hummer h3 2008,the oil pressure lindicator

The engine will shut down to protect itself,check the oil level and see whether the car has oil.The light comes on if the oil level is low or the oil pump is not pumping any oil.I replaced my engine hummer h3 two weeks ago due to a malfunctioning oil pump.Check if you oil pump is not malfunctioning.Good luck hope you have not damaged anything further like the bearings due to lack of oil.

Sep 17, 2014 | 2008 Hummer H3

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Hummer h3 rear brake light does not work

Check that the bulb is not blown and needs replacing

Dec 27, 2012 | 2006 Hummer H3

1 Answer

Rear brake lights stay on H3 2007 Hummer

Check the brake light sensor under the brake pedal

Oct 16, 2012 | Hummer H3 Cars & Trucks

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2006 hummer h3 replace burnt out left trun signal bulb

if it's the rear light, open the back door all the way and look where it hinges. There are two phillps screws in there that you remove and then go out side the door and gently pull streight back on the light assy to remove it

Nov 20, 2010 | 2006 Hummer H3

1 Answer

H3 hummer 2006 floor board, passenger side

The hot floor is the catalitic converter. It may be bad, but you need to find out why it got hot. usually lean codes will be present with this problem. could be a bad vacuum leak. mass air flow sensor could be bad. as far as the water being a 2006 I do not think it is the windshield, probably the drain is plugged up for your a/c look under the hood, passenger side, there should be a tube that hangs down around where the a/c lines go in to cabin. you can try to back flush it or run something up in it to free it up. good luck

Jun 14, 2010 | 2006 Hummer H3

3 Answers

My h3 hummer has some kind of problem with the signal rear lights and the break rear light i check the fuse and that not the problem whatg to do now???

my h3 hummer runing light on trailer do not work i have no power at the plug the turn & stop lights work

Apr 23, 2010 | 2006 Hummer H3

1 Answer

Fan belt engine trouble

faulty water pump grinds and squeaks
stuck thermostat
cooling fan /slipping clutch =spinning to slow or faulty relay

oily fluid .spray
..oil and coolants mix
could have blown a head gasket by now


Apr 11, 2017 | 2006 Hummer H3

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