I just installed a new key ingition assembly in my 2005 impala, the car will turn on but will not attempt to start., if the battery is dead i will hear a clicking sound for it to start, but all i hear is a humming sound from the engine and it said i have to reset the pcm in the book which i did but am lost and stuck at a place i cant get around, any advice, i cant get the car to the dealer and i just got back form iraq and getting ready to go back, this is the only car we have and i need help, maybe C4 will help, but we need a car. please help. thanke Raymond
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i would say when the person broke into your car they set off the security system which stops the car from starting, the way to reset the security is to put your key into the ignition turn the key until all the dash lights come on and let them stay on about 15 minutes after the 15 minutes have expired turn the key off and wait about 3 seconds and then your car should start. hope this helps.
Hi... Yoou will need to program the new Ignition lock cylinder.
This vehicle use a Theft Deterrent system....
The passlock sensor Is part of the cylinder assemble
Some times this prosses need to be done more than one time.
If the first FAIL..
Here is the prosses to program the new cylinder.
Be sure to have a good battery, or use a battery charged during the prosses..
Remove the old Ignition switch. Install the new Ignition switch. with the new Passlock sensor. Turn the key to on position and try to start a few senconds. them leave the key on run position. For 10 minutes and NOT more than 11 minutes. Them turn the key to OFF position for exactly 30 seconds. Them turn the key to Run position 10 minutes or 11. them turn back the key to OFF position for 30 seconds. Them turn the key to Run position 10 minutes or 11, Turn the key to OFF position and wait 1 minute, them try to start the vehicle. If the car start you are DONE. But if Not Letme know to give you more information.
After you replace the ignition switch turn the key to start the car and release leave the key were it stops after trying to start wait 10 minutes until security light goes out turn key to full off position then repeat the above procedure two more times for a total of three on the 3rd attempt to start car wait for light to go out then turn key to full off positoion wait 10 seconds then try to start car body control module should learn new pass code and the car should start.
Big john, J@J Automotive
Hello, It sounds as if you are having ignition switch problems on your Impala. The tow truck driver is correct, Gm has had a problem with keys but that is because the theft deterent system is looking for a particular shaped key(original-new shaped) key and if your key is worn then you can go to the dealer with your title or bill of sale, or etc, and get new keys made. In the mean time, If it do this again turn the switch off, turn it back to start, and then leave on for ten minutes. This will relearn the key but when you get the new key you wil have to do this again with the relearn.