after replacing the battery brake lights flash whether the key is on or off
Sep 6, 2014 at 2:28 PM
Repair Safety Notice:
This information is for general instructional purposes only. Vehicle repair can be dangerous.
Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
and consult a qualified repair shop when needed.
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WRENCHTECH
CAR REPAIR CONTRIBUTOR
20,761 POSTS
The key has nothing to do with brake light operation If the lights are coming on when the car is parked, then the brake light switch is either out of adjustment or defective.