I have a post that talks about starting issues I have with my H3 that is out of warranty and 45k miles. I quickly learned and disseminated through this forum and other sites that it is a faulty ignition switch and or ignition ke
y. Our vehicle is equiped with a security that is built into the ignition. (nice that we dont have a chip in our key 06-09) but still paid $30 for a H3 logo key. The light will continue to blink for 10 min no matter how many times you try to start the vehicle or press the unlock on the key FOB. I recently tried shaking the key in the ignition and slammed the steering colum a few times and it seem to reset although this would not be a scientific intervention
The major symptom is the blinking red light under the speedometer that looks like a car with a lock over it. (security light) When this light is blinking your anti theft system is activated which disengages the power to your ignition.
Suspected causes are explained as a)GM's have shotty ignition switches b) the key is worn out allowing it to slip out (even slightly) of the igniton c) turning the key hesitantly to start vehicle. All of these I have done and resulted in waiting 10 min and when you then turn on the key the light will turn off with all other notification lights in about 7 seconds.
SO NOW my question is how does one go about changing this ignition switch??????
I have read that you should only have the dealership do it and can imagine that no matter what this new switch will need to be programed to the ECM?????
I have found OEM replacement ignition switches for a great price on ebay. http://cgi.ebay.com/ebaymotors/Genuine-Hummer-H3-Ignition-Starter-Switch-2006-2010-/220652073777?pt=Motors_Car_Truck_Parts_Accessories&hash=item335fe37331
Someone has even posted a diagram of the steering column and it appears to be a fairly simple replacement job. Although I read that removing the screws may be difficult due to the heads being shaved off to prevent theft.
Is there anyone out there that has done the job or can give advice? I will be posting a full DIY repair here if the job can be done without the dealership.
2006 Red H3 Base w/Chrome & sunroof. 54k miles! Upgrades: Front tint, mud flaps, roof racks, custom rear tire cover, Poly cross-member bushing replacement (still strategizing). Soon to come: Clear corner lights, brush guard, front level w/Bliestien shocks and bump stops. PCMpluss computer upgrade