just replaced battery in 89 Cultass Supreme. doing ok. but today when I got to work and turned everything off then turned car off, my headlights stayed on. Now they won't shut off until I take off negative battery terminal. Anyone know why??

Asked by Jan 09, 2014 at 07:29 AM about the 1989 Oldsmobile Cutlass Supreme

Question type: Maintenance & Repair

battery was needing charged/jumped daily to start for last 2 months. especially when cold. finally got a brand new battery 2 days ago. today my headlights won't shut off. have to unplug battery terminal to get them to shut off. (just went through a blizzard with temps dropping to -20 deg F with -50 deg F wind chills.)

1 Answer


Sounds like a stuck headlight relay or if equipped the auto headlight control module module.

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