Question about 2006 Hummer H3

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Intermittent Problem vehicle looses power, service engine light comes on and stabilizer system light, also when you turn the a/c switch one notch off of cold it blows hot. Vehicle completely broke down within 5 minutes of the dealership saying there was nothing wrong. They replaced the catalytic converters, switch and plugs. Problem continued. They divided the wiring into 5 separate circuits and put a new load center on it, within two days same problem occured, low power and engine lights came on. Shut it down, no more lights. A/C switch still goes hot (intermittingly) Oh yeah, now my brights don't work. They had an engineer look at it can't figure it out. It still has one circuit divided into 5 and I was told to call when it completely breaks again.

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  • Anonymous Jul 10, 2008

    For the past few month's I've experienced hard starting issues with my Hummer H3. Under warranty I reported it to the dealer and naturally could not duplicate the problem. The starting is more like the vehicle tries to start and diesels a bit followed by a stall. Recently the dome light was left on and the battery completely died. AAA jumped the vehicle and my wife stalled again down the road and AAA said the batt was bad and checked the alternator and it was good. After a new batt the car is still hard starting and now runs rough with no response to the controls, even the gas peddle. The dealer stated the batt, although new, maybe bad and can cause the electronics, which control everything, to go haywire. The display in the instruments are going crazy and all sorts of things pop across the digital read out. I will test the batt tonight and I did verify the cold cranking amps are proper for the replacement batt, which I was told to check by the dealer. Scanning the computer tonight as well to see if any codes turn up. I will follow up if I find a solution.

  • air_sel_2000 Jul 19, 2008

    I just had the same problem today. I have kept my truck serviced and have kept everything up to date. I had a problem a week ago stating traction failed power reduced etc. It was when my low fuel light came on as well. I stopped my truck started it up again and this time got a emissions and stabalizer problem. I raed over the manual and it stated that bad gas or a loose fuel cap can cause that well i filled up my tank and tightened the cap and problem solved. Now today as im coming home while driving i randomly get a message saying traction failed stabalizers failed power reduced. Since its friday and after the Hummer service is gone I can't figure out if its safe to drive to teh dealership which is 1 hour 45mins away on interstates...I'll be damned if i'm going to be stuck driving at 30 mph to a place 120 miles away. Going to call them first thing in the morning and talk to a specialist because the service manager for criswell didn't know is its safe to drive or not since he doesn't work on the hummers. I'll post back here tomorrow with what I find out.



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Not sure if my situation helps or not, but here you go.....

I have a 2006 H3 that has 21,000 miles, last week my husband was driving and lost power, service engine came on, and it kept flashing stabilization problem. Called roadside assistance and had it towed to the dealership. Dealership said it was a dead battery and replaced it. Took the vehicle home and didn't drive for a couple of days. Drove again a couple of days later with no problems. 2 days later tried to start and vehicle had no power could not start at all. Called road side assistance and had it again towed to dealership. Dealership told us the main computer was bad and had to be replaced. We were told it is NOT a common problem, heres hoping we don't have any other issues with the vehicle.

Posted on Jul 14, 2009


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