# Intermittent warning lights, temporary system failures

**URL:** <https://community.cartalk.com/t/intermittent-warning-lights-temporary-system-failures/33848>\
**Category:** Maintenance/Repairs\
**Tags:** pontiac\
**Created:** [July 23, 2009, 3:31pm UTC](https://community.cartalk.com/t/intermittent-warning-lights-temporary-system-failures/33848 "2009-07-23T15:31:45Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![George\_Sickler](https://avatars.discourse-cdn.com/v4/letter/g/0ea827/32.png) [@George\_Sickler](https://community.cartalk.com/u/George_Sickler)\
**Post date:** [July 23, 2009, 3:31pm UTC](https://community.cartalk.com/t/intermittent-warning-lights-temporary-system-failures/33848/1 "2009-07-23T15:31:45Z")

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My 2000 Pontiac Grand Am GT1, with less than 70,000 miles, is beginning to act weird. On very rare occasions, maybe once a year beginning three years ago, warning lights will turn on while I’m driving, typically the “Fasten Seat Belts,” “Security” and “Service Car” lights. When I stop and re-start the car, the lights are out and it doesn’t happen again in many, many months. In April, it happened again but with a twist: the AC stopped cooling (the fan was OK)and the turn signals wouldn’t work. I got to my destination, stopped and restarted the engine, and everything returned to normal. Now, the turn signals have begun to malfunction on a more regular basis, with no warning lights on the dash. But they start up again. I’m retired and spending a lot of time in a small town in Central Mexico. Anybody have a clue what’s causing this? There is one good mechanic in town with computer diagnostic equipment. Should I wait until there’s a total failure to facilitate a diagnosis and repair, or have him experiment at extra cost? The car has been passing Texas’s annual safety inspections with flying colors – nothing shows up on their computer systems. Thanks mega.