Pontiac Problems? Ask a Mechanic for Answers ASAP
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First off do you have a cranks but won't start condition or does the vehicle not crank/not make any noise at all when you turn the ignition on. Do you have a security light on and also do the other electrical accessories on the vehicle work ok.
So the starter is not engaging at all with the key or with the remote start and again, is the security light on in the dash or flashing when you try to start the vehicle?
Ok try this procedure and let me know if there is a problem afterwards.
As far as the changer parked message. That is normal. Press the CD load button on your radio to reset it.
Important: The vehicle learns the key transponder information and/or passwords on the ignition switch transition from OFF to RUN. You must turn the ignition OFF before attempting to start the vehicle.
Which part did not work?
If you are referring to the theft light/no crank make sure you followed the procedure to the letter and also the battery is fully charged. Try it again and if it does not work then we will need a scan tool to read theft system data and see if a voltage spike took out the module.
Ok, Now we need a scan tool for fault codes and to read theft system data.
It is a special tool to read vehicle data and fault codes. Many cheap code readers are available at auto parts stores which my pull a fault code but may not read data. This may or may not help in this case. I'm suspecting a voltage spike may have taken out the body control module which may need to be replaced and reprogrammed using dealer equipment.
I cannot suggest who to bring the vehicle to, I'm mererly saying computer equipment is required at this point to read system data, fault codes and diagnose the system further. The system is comprised of a theft module,body control module and a powertrain control module sharing data over low and high speed serial data lines. If you have a theft light on and the relearn procedure does not work after a battery replacement then it is possible a module has been spiked and may require replacement.