2008 gmc seirra third brake light wont go off

SOURCE: 1998 gmc sierra brake lights

did u check that they not burn?if not you should Check the wires going into the steering column if you don't have separate turn signal lights and brake lights because if they use the same bulb then the turn signal may be bad. If I remember correctly that particular car doesn't work this way, but I include it just in case.

Marvin

• 85242 Answers
• Posted on Nov 07, 2008

SOURCE: Brake lights do not work

This is a well documented problem, replace the turn signal/multifunction switch to correct this issue, this very problem happened on my GMC, it is a 99 as well, replaced the switch as instructed by a chevy forum member and it fixed the problem

SOURCE: Remove front Brake Rotor

Try opening up the caliper with a flat screwdriver thru the opening in the middle of the housing.pry on the rotor and pull towards you to push the rotor back.That should loosen it up enough for you to get it of the rotor.If that dont work you probably got a stuck caliper and have to release the brake line and do the procedure again. GOOD LUCK

SOURCE: Third brake light works but two on rear dont.

have you replaced the bulbs?

SOURCE: how do you remove the third brake light assembly

You'll have to gently apply some prying pressure to the housing as you turn the screws, it sounds like they've stripped the part they go in...