Question about 1999 GMC Safari

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Key remote no working

I have a 1999 gmc safari and replaced the battery in the remote...but it wont unlock or lock or do anything....the led on the remote is working and i have tried the holding lock and unlock for 7 seconds like on my 99 yukon to reset it...but that doesnt work....is there a reset procedure posted anywhere that i could look at? im not coming up with anything helpful online....

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  • chvycruisr May 25, 2009

    no its actually a pushbutton soldered to the circuit board....microswitch....not just the magnet on the contacts...i wish it was.....when you push it you can hear th computer or something clicking in the vehicle....just wont unlock or do anything....im confused...figured it was a programming issue....not sure though

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Sometimes when you cycle the ignition (turn the key from off to start and back to off again) to often in a short period of time (usually 8 times in 10 seconds or so) on accident, the remote access personality module will enter its programming mode by default. This is how the dealership will program in new remotes for your vehicle. However, if it is done unintentionally, and then no new remote is entered into the system (done by simply pressing any key on the remote within the next 20 seconds or so) then any previous remotes programmed into the RAP module are erased. Hence, your remote will no longer work, until and unless it is reprogrammed using the above method.

Posted on Jul 19, 2009

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Contack's dirty ? take cover off use pencil earaser to clean where the button presses on the microchip , the bad thing is onece you start doing this , for some reason you have to keep doing it every time it stops working ( weekly to every few week's for some reason .

Posted on May 25, 2009

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