Question about 2001 Chevrolet Blazer
The third break lights are LED and the circuit board may have gone bad or the solder may have gone bad. The circuit board is built in the third brake light and is a seal unit. You may have to replace the unit, there is a relay for the third brake light and that is located on the glove box behind the panel that say's relays. There are three relays in there, the center is for the fuel pump and the two out side are for the A/C and third brake light. Just swap them around and see if the brake lights come on. Good luck and keep me posted.
Posted on Jun 29, 2009
Check the signal ligth assembly, this truck were re-called for that
I had the same problem after replacing the signal ligth switch problem was solve
Posted on Jul 01, 2009
Sounds like your brake light switch, located on the brake pedal, has gone out. Shouldn't cost to much at auto parts store. Thanks for using FixYa!
Posted on Jun 26, 2009
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Posted on Jan 02, 2017
theres usually a pressure switch behind the brake pedal, sometimes the plastic hex nut rattles loose and you have to retighten it.
Posted on Apr 12, 2009
try playing around with the turn signal lever,push towards the dash.had same problem with 98 blazer,that is where your switch is located.
Posted on Jun 29, 2009
SOURCE: rear tail lights not working
If both tail lights are not working it is likely to be a fuse or bad connection under the hood or a connector at the back see if you can trace the wires to a connector and see if it is dirlty or corroded.
Posted on Mar 02, 2010
Some of these had two fuses for brake lights. One for the top/center stop lamp and another for the rear left and right brake lights. Usually one said "stop" and the other said "brake" and one was in the underhood panel while the other was in the dash fuse panel. It's not uncommon to blow a brake light fuse [LR and RR] if you tow a trailer but some of these had seperate fuses for the trailer lights also. If you have a test light check both sides of the two fuses for power [ignition key on] while stepping on the brakes. It should at lest narrow your search a bit.
Posted on Jun 09, 2010
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