How do I program a keyless remote for my 2002 Pontiac Sunfire?
You can’t program keyfobs on the sunfire without the GM Scan Tool. You will need to go to a dealership. You can try to resynchronize the fobs to see if that fixes your problem. Stand closer than 5 feet from the vehicle Push and hold both Lock and Unlock buttons for 10 seconds or untill the door locks cycle. If they do cycle you probably fixed the problem.
