# 97 Cadillac Deville

**URL:** <https://community.cartalk.com/t/97-cadillac-deville/24555>\
**Category:** Maintenance/Repairs\
**Created:** [January 7, 2009, 10:25pm UTC](https://community.cartalk.com/t/97-cadillac-deville/24555 "2009-01-07T22:25:59Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Angle\_Annie](https://avatars.discourse-cdn.com/v4/letter/a/fbc32d/32.png) [@Angle\_Annie](https://community.cartalk.com/u/Angle_Annie)\
**Post date:** [January 7, 2009, 10:25pm UTC](https://community.cartalk.com/t/97-cadillac-deville/24555/1 "2009-01-07T22:25:59Z")

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We recently bought a 97 Cad Deville, drove a few days and woke up to find the headlights stayed on all nite and ran down battery. My husband bought a repair manual and changed the headlight relay switch. Lights still stay on. I have heard from a car parts place it may be the twilight sentinal system. He’s a retired GM guy but this Caddy has everything on it and we’re used to Chevy’s. Any feedback will help!

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**Author:** ![pleasedodgevan](https://avatars.discourse-cdn.com/v4/letter/p/51bf81/32.png) [@pleasedodgevan](https://community.cartalk.com/u/pleasedodgevan)\
**Post date:** [January 8, 2009, 4:35am UTC](https://community.cartalk.com/t/97-cadillac-deville/24555/2 "2009-01-08T04:35:27Z")

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Have you tried to operate the twilight sentinel or turn it off? Probably can’t be operated. If not that, the headlight delay?