The BOO (Brake On/Off) Switch may need to be replaced. If it is bad, it would cause the brake lights to NOT illuminate when the brake pedal is applied.
Blown fuse, both lights are burnt out, There is a wiring or ground issue.
Check the brake light bulbs, Check the brake light fuse, Check the brake light switch, In that order.
I tried all the fuses, the parts that under the brakes I checked that. All lights come on and working except the brake lights no break lights.
Possible bad switch on the brake pedal? When you push on the brake pedal, it activates a switch, that switch turns on your brake lights. If the bulbs and fuses are ok, check the switch with an ohmeter.
Blown fuse Bad bulbs Defective or mal-adjusted stop light switch
I just had my Daewoo Leganza brake light switch replaced. It goes under the brake pedal. and now my brake lights work fine.
for the tail lights all the other lights are working blanking lights brake lights and reverse lights but no tail lights on both side
Brake lights often use a dual-filament bulb. If this gets inserted the wrong way other functions can suffer.
possibly the fuse for brake lights......also could be brake light switch----turn signal switch----broken wiring anywhere in the vehicle---relay not working ---any other item specific to your venicle.
blubs blown? Check the turn signal switch.
a blown bulb or loose wire.
The presumption is that if you were rear ended, the other driver is at fault. The brake lights not working is a mitigating factor, but the bulk of the blame still goes with the other driver. Insurance doesn't have any relation to fault. But it coculd get you a ticket.
Check the park lamp relay. It is probably next to the fuse.
you probably need to lift up on the brake pedal a couple of times to reset the brake switch. worked on our 86
Yes, or a bad brake switch, a wiring problem, or bad bulbs.
It probably indicates that both your other brake lights are burned out and need replacing. BTW: It is illegal in most (if not all) jurisdictions to drive this way.
If your brakes lights are not working and all of your other lights are OK try replacing your "brake stop switch". You may have to have either your local auto shop or local dealer replace the switch because it's hard to do yourself. I had the same problem on my Tahoe and replacing the brake stop switch solved it right away.
If it is the tail lights, it is the headlight switch. If it is the brake lights, it is probably the brake light switch. I really don't know how to replace the bulb in the 3rd light. change the brake light bulb first it may be shorted causeing the other problem
the daytime running lites go out when you put the trans in park. they also go out when you depress the parking brake. i would start looking there.
Look for a fuse labeled TAIL LIGHTS. There are 2 separate circuits, one for brake turn and flasher and the other is for tail lights.
Check the wiring. Probably got a short. It could be a short, however, if your tail lights are illuminated, then you might rule out a short. You might also check your fuse for the brake lights. If the fuse is good, then you should check your brake light switch. It is probably a small box-like object attached to the brake pedal arm. To check the switch, you will need a circuit tester or testlight. The switch has two wires. One of the wires will be hot (have current all the time). Locate the hot lead. The other side should not be hot. Now, depress the brake and check the other side. If it is now hot, the brake light switch is good. If you have tail lights, and if the fuse is good, and the brake switch is good, then the problem may be in your turn signal. Hopefully, you have a blown fuse.
Blown fuse or bad brake light switch?
Nonfunctional LightsI'm not familiar with your 2002 Gran Prix, but the problem you describe is universal to all vehicles.The fact that the "third" brake light [in the rear window package tray] IS WORKING, indicates that the brake light switch IS WORKING properly!!!!!That suggests that the reason that the other two brake lights are not working is that there is an "open" condition in the wiring circuit to the other two brake lights. This is confirmed by the fact you replaced the lamps [bulbs] in those other lamp holders with known good lamps.There could be several causes for an open circuit, but the most common include:One of the connector plugs in the wiring harness to the brake lights has become disconnected, orCorrosion has built up inside of one of the connectors [one that feeds both brake lights, which will be in the circuit "ahead" [upstream] of where the wiring harness "splits" off between the two brake lights].Very remote is the possibility that the ground wires on both light assemblies has been disconnected, cut, or corroded.
It is possible that a wheel speed sensor is bad. This will cause the anti lock braking to not read the wheel correctly which would be a brake problem that would cause a light.