Hi everyone, i just bought an H3 my 2006 3.5L, but i've some problems. i've done some research for various problem, but i can't solve them, so i've would like to ask your help.

1.The Trasmitter of remote Keyless is not working, i've changed the battery, and tried to check what kind of mode is programmed in the DIC, but i can't enter in the DIC, i push the 2 buttons on the fob, with the key in LOCK position, but nothing happen.

2.on the DIC i have no message, like doors opened alerts, and no chime sound, nothing.

3. I've the TPM SERV problem, i try to do the procedure to relearn the sensors in the wheel, but when i enter in the learn mode, the first sensor in the Left front wheels doesn't respond, so i think it's a sensor problem right??

4. Sometimes the Hummer won't start, and after 10 minutes start, so i read it could be the ignition sensor? It's correct?

Can you help me to solve some of these problems??

Thank you brothers!!

 

1. Your truck lost communication with the fob(s) it needs to be reprogrammed at a dealership or by a capable locksmith.

2. Not sure what you are saying is the problem. If the truck is running and the doors are closed then all that is a good thing. If the truck is running and you open a door and get nothing, that could be a BCM issue.
Does your 3 have a sunroof? If so, has the passenger side floor been wet?

3. TPM SERV is in the DIC (#2 above?)..... means you need NEW TPMS Sensors, their lifetime spec is 10 years, you are past that.

4. Search GM PassLock, you have that issue and need a new PassLock Module, or ignition switch, or need a bypass solution.

 

On point 1, here in Italy it's sooooo difficult to find one that can do it.

On point 2, when truck is not runnig, and i open a door, i don't read a message on DIC, also if i left the key in the ignition and open a door i don't hear any sound like chime to remember to pull out the key. With every door i try nothing happens...

 

Oh yes, i forgot to say, my 3 has a sunroof, but i don't know if the floor has been wet...

 

Any advice?

 

1. Can't help you with this one, but if you cant find anything on google/YouTube then its time to call a gm dealer.

2. If there are no warnings at all, and no chimes to indicate things such as the keys being left in the ignition while the doors are open, you may want to check for codes. Not every code will trigger a check engine light; if you go to a place that has a good code reader (one that reads codes for all modules) then they may be able to help you out. Places like Autozone may have a good enough code reader and will do it for free.
Also, I would check any related fuses. I have the electrical diagrams for the hummer somewhere so I'll take look for them and see if I can find other possible causes I'll update you.

3. This happened to me on both of my vehicles. If any of the TPMS sensors have a dead battery or are damaged, you will not get a response when you try to relearn at that sensor and the TPMS relearning process will end. You just have to replace the sensor unfortunately.

4. This aggravated my wife and I at least once or twice a month for a total of 2 years before I fixed it. And I only just fixed it about 4 months ago so not sure if the problem will return. All I did was remove the bottom of the steering column, remove the pass lock ignition switch (part located to the left) and sprayed the male-to-female connector part with wd-40. That's literally all I did and we havent had the problem since. I've even done things that used to trigger the passlock system in order to test it and everything is fine.