Why would all brake lights stop working at the same time on my 2003 Tahoe?

Asked by Sep 26, 2015 at 12:43 PM about the 2003 Chevrolet Tahoe LT

Question type: Maintenance & Repair

Both right,left and top brake light all stopped working at the same time on my
2003 Chevrolet Tahoe. Already tried changing the fuse. Bulb on right and left
side not burned out because driving lights work just doesn't darken when
brakes applied.

3 Answers

83,395

Possible wiring or brake light switch, have you checked for power going into then out of the switch when the pedal is pushed, you may also want to check the rear lighting connector, could be loose or damaged.

All other rear lights work- cruise control does not though as seen in other questions past.

83,395

Horn and cruise power are on the same circuit. Have you checked the brake light relay?

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