2006 Hummer H3: won't start

Filed Aug 9, 2025 · CA

I was trying to get away from a stranger that was following me that was threatening and scary and when I got in the my Hummer h3 it wouldn't start its the ANTI THEFT that's thinking the car is being stolen this is happened several times of the car not starting i went to Google and YouTube and there's hundreds of videos complaining and giving instructions on waiting 10 min before trying to start the car , this is very dangerous especially for woman and it needs to be recalled and fixed before someone really gets hurt or killed , I was on scared

Filed Mar 29, 2020 · Electrical, Fuel system · 200,000 miles · AL

The h3 will not start. Dash screen keeps showing the passlock activated and won't turn off. Computer thinks the h3 is being stolen. I have tried to reset and no luck. I had this problem about 4 weeks ago and changed the fuel pump. Then it happened again last week and now on 28 march 2020. Engine is turning over and electrical systems light up, but sounds like fuel is not getting into the fuel pump again. After doing some research, finding others having the same problem. Recommended procedure is to wait 10 min, still no luck. Waiting 15 min seemed to work before, but now it doesn't. How am I supposed to be safely in the vehicle, drive somewhere and then it stalls again? I am the original owner and haven't had this issue until it started 4 weeks ago. What if this happens while I am driving on the highway and fuel stops going to the pump? This could cause a multi-vehicle accident.

Filed May 20, 2019 · Fuel system · 173,000 miles · TX

I bought this h3 hummer used and it ran good until last year. It would not start at different times but after you waited 10 minutes, it would start. We just paid 1300.00 to have the fuel pump replaced last week. Now it won't start again. I have seen many complaints on this and there should be a recall on this problem.

Filed Mar 1, 2019 · Driver assistance, Electrical · 81,000 miles · WI

Electrical problems, either the vehicle wil no start due to the anti-theft system or I will lose all power when driving.

Filed Feb 28, 2019 · Electrical · 95,000 miles · NJ

My 2006 h3 has sporadic issues with starting for a few years now. When I try to start it, it will crank fine but will not start. If I wait approximately 10 minutes & try again, it starts with no problems. During this issue, everything else works in the vehicle (radio, lights, etc..). I've had it checked by several mechanics & replaced lots of parts but didn't help this issue at all. I have read many complaints reference this same exact issue online & through the federal safety agency but nobody has had any positive responses. This is a major issue that should be taken care of by gm as a recall. I will be part of this class action lawsuit through these threads related to this hummer h3 issue. Thank you & waiting to hear about this terrible gm issue.

Filed Oct 25, 2018 · Electrical · 50,000 miles · OH

My 2006 h3 (50k miles) has starting issues that have been getting more frequent since last year. When I try to start it, it will crank fine but will not start. If I wait approximately 10 minutes & try again, it starts with no problems. During this issue, everything else works in the vehicle (radio, lights, etc..). I've had it checked by several mechanics & replaced lots of parts but didn't help this issue at all. I have read many complaints reference this same exact issue online & through the federal safety agency but nobody has had any positive responses. This is a major issue that should be taken care of by gm as a recall. I will be part of this class action lawsuit through these threads related to this hummer h3 issue. Thank you & waiting to hear about this terrible gm issue. Rich

Filed Sep 6, 2018 · GA

I have owned my 2006 h3 hummer for five years however the last two years my vehicle will not start leaving me stranded for at least ten minutes to twenty minutes hesitant to start... Then starting as if nothing was wrong. Initially when I noticed a problem it was only once or twice a month now is 2 to 3 times a week...I've had the vehicle checked out on numerous of times being diagnosed and the tech not sure what the problem or issue really is..or why it happens so frequently..very frustrating please help with any advice

Filed Jan 3, 2018 · Electrical · AZ

Takata recall. Car will not start, after about 10min it will start up.

Filed Jul 8, 2017 · Driver assistance, Electrical · 56,000 miles · CA

The vehicle will turn over, battery is fine, but the engine will not start, due to the on-board security system thinking that the vehicle is being stolen. This frequent problem has been reported to the nhtsb numerous times and to gm with no results. Gm customer service claims that they have never heard of this problem, but if you google: 2006 hummer3 starting problems, you will see a long list of exactly the same complaints. This situation should warrant a recall and repair at gm's expense. The current remedy is to sit and wait 10 minutes until the security system resets and then the vehicle can be started. This condition occurs without warning and is not covered at all in the owners manual.

Filed Jun 18, 2017 · Electrical, Engine · 115,000 miles · FL

Truck will not start for no apparent reason. Key turns, sounds like it will start but does not. This has happened on several occasions and seems to be an ongoing problem for other hummer owners too. I just had it towed once again to the mechanics shop. This is the 5th time within one year. Unable to leave my house during an emergency, child related.

Filed Mar 8, 2017 · Seat belts · 50,000 miles · IL

Driver seatbelt gets stuck and I can't get out. Car won't start. Wait ten minutes with the key in first position then it starts. It will take some girl like myself stuck in a dark parking lot with a car that doesn't start for ten minutes.

Filed Feb 27, 2017 · TX

This complaint is concerning the pass lock system on my hummer h3. My h3 has been not starting due to the vehicle thinking it is being stolen. It has become a frequent problem and is really frustrating. When it first started happening it was, maybe 6 months before it happened again. Now, it is happening at least once a week. This morning I needed to bring my daughter to the emergency room for an extremely high fever and my vehicle would not start again. I had to wait about 10 minutes before I could get moving. This has become the norm. Truck won't start, wait 10 minutes and try again; truck starts. This is extremely frustrating and really an inconvenience.