2003 Impala Brake lights dont work

Three places to look. 1) Brake lamp fuse, 2) Turn signal switch and 3) the brake pedal switch. Brake light power comes from the fuse up to the turn signal switch down to the brake lite switch on the brake pedal and then on to the light bulbs. Start by putting the 4 way flasher on. If the brake lites flash, then the bulbs are good. That eliminated the fuse too. so the problem is the other two.

I have the same problem...it's in the hazard switch. It needs to be replaced. Try a salvage yard...the part is $122

Fast flashing dash signals mean there is a bulb issue-DEFINATELY!

You have a failed brake lamp relay,this is located at the back right hand in the trunk at the quater panel.

then it's probably a ground wire that isen't atached

have you checked the bulbs and also the fuses,check for power and a good ground at the bulb sockets,and at the wring going to sockets,

Check the brake light switch, it is down on the brake pedal lever, you can dis-connect the wire connector at the brake light switch and check for broken wires at the connector, and then jumper the connector with a paper clip, if the brake lights come on then replace your brake light switch.

There might be more than one switch attached to the brake light pedal lever, the brake light switch usually only has two wires going to it when there are two switches.

If there is no problem with the brake light switch then you can suspect the turn-signal switch to be at fault, as all of the running lights, turn-signals, brake lights, and hazard lights are all ran through the turn-signal switch. You can also try stepping on the brake pedal and wiggle around the turn-signal switch and see if the brake lights flicker or come on.

no offence, just chking , Fuse, Both bulbs , Turn signals fuse, All chked and good? one more thing, is the brake switch being fully depressed? Can't assume anything, sorry.

Some cars have two brake switches under the dash. Try manually pushing the button on the switch while someone looks at the brake lights. It may just need adjusted. Good luck. Please rate me so I know how I'm doing. Thanks.

please check your brake light switch located near the brake pedal. it could be faulty.

tnx 4 using fixya,

drcool