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Hummer H2 Questions

Get answers to questions about your Hummer H2 at RepairPal. Find solutions, diagnose problems and get back on the road.

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186
questions

Want to know how to keep the driver seat and mirrors from moving. Also have popping noise underneath the passenger floor really hear it popping hitting the gas hard and braking hard..turning and hitting bumps what could that noise be?

4 wheel high when you push the button to to 4 wheel low the light for 4 wheel low just flashes it doesn't shift and light goes out.

changed air lines on the air dryer leveler today. finished I have service suspension. Check air inflator in back not working.

Come on. The compressor sounds like it kicks on under the hood but nothing else happens.

motor works fine

It doesn't seem to be over heated. The coolant is fine. Whay could this be?

Not turn on. They turn on and off when they want. Have it for a month and this just started happening 2 days ago.

Ran out on highway put gas in drive it 50 miles parked overnight now won't start fuel pump is new fuel filter is new ???

During the Christmas hustle & bustle when unloading gifts etc, while having my hands full, & catching a neighbors toddler from running into the street-- I SLAMMED THE REAR-END/ LIFTGATE DOOR CLOSED. (Fortunately I stopped the toddler, but dropped the gifts lol) The license plate pocket popped out & the handle is still intact but not pulling to open the door. PLEASE HELP

Changed map sensor, battery, may sensor, fuel sending unit, map sensor harness. Still having same issue runs for few and then wants to stall. Code still comes up with PO107 and c, ev, o,oh. Please help. This is crazy.... not sure what else to do....

Left sun roof open now Gauges not working

hummer dealer told me that my air sensor on the driver side was bad so I replace it and now the compressor don't even kick in .

the onstar goes out also but back windows fine and drives fine, also a/c will stop running cold. blower will still go tho. Once sits awhile all good but again after 10 minutes does same thing.

I have to replace the power steering I know that. But the brake pads are new. The car is maintained to the tea. Oil changed. Everything! ! what can I do?

also the face of my radio and air conditioning get warm is this normal as well.

Indicator light on dash stuck in park position but when gear shift is moved the srive positon the transmission will not engage

I was driving and my transmission stop pulling and the dash light moved to the parked position while vehicle was still moving but the transmission stop pulling and I coast to the sidw of the road

would like to find out if theirs a power relay

when I shut off the engine the power stays on

I replaced body control and problems still continue

I replaced body control mod and had it reflashed at dealer and still doesn't shut off code U1000

Low oil pressure in message center
Then the alarms start and sometimes don't stop the lights and all the dash will stop working also at times ..seems like it's electrical..what can I do??

Small vent on lower front left side leaks inside onto the floorboard & soaks it. Can we do anything ourselves to fix this? Also, is starting to leak a bit when it rains at the front left hand side of sunroof. Can we fix this ourselves?

The temperature gauge is moving as it should but simply not getting heat, even when I have both sides set at 90 and the fan on high and no cold air when I drop the temperature and turn on the air conditioning...no check engine lights or any other light is lit. Thank you

Driver seat stopped working unable to move forward or back.

Turned on air conditioner for a bit and tried turning it off, which it wouldn't if when car was off it remained on.

The CD player won't eject my cd's , and now the car is dead because the radio WILL NOT turn off no matter what. Could it be a fuse or??