2003 Buick Century security system. When the ambient temperature goes above 90 the security system is set, even with a cold engine. Below that, everything works properly.
2003 Buick Century security system. When the ambient temperature goes above 90 the security system is set, even with a cold engine. The car will start after the 10 minute wait. Below 90, everything works properly. We did the full system reset, but the problem is still there. It all seems heat related, but we don't know why.