I have 1996 Cavalier bought 2nd hand,never used or had code for thief lock Changed battery and thief lock activated and now cannot start car Any suggestions?
Delco thieflock
Apr 21, 2008
3 Replies
You may wanna try this: > "Set the ignition key switch to accessory--the electronics are ON in the car; then remove the negative terminal from the car battery for a few minutes. Then, turn the key to OFF and hook up the battery." < Above quote and source at >>
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GM doesn't have anything on that car that would prevent it from starting just because you swapped the battery.
Does it have an aftermarket alarm/anti-theft system?
Do you get a flashing "security" light when you attempt to start it?
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