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 >>
http://www.automotivehelper.com/topic508922.htm <<. Hope it helps.
Too late to help this person, but there is a way to prevent this from
happening. Same with radio codes. Battery shops plug a 12 volt source into
the lighter socket while swapping out the battery. Prevents codes from being
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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