2003 Gmc Sierra Truck Parked Shut Off Driveway Brake Lights Flash Intermitantly

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ANONYMOUS
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Truck is parked and shut off in my driveway and the brake lights flash intermitantly.
Jan 11, 2013 at 6:02 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
The brake lights on the exterior of the vehicle or on the insturment panel?

If outside lights, check the brake light switch under the dash at the top of the brake pedal. See if it is out of adjustment.
Jan 11, 2013 at 9:29 PM
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