Check your brake light switch at hte brake pedal.
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.
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.
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.
Blown fuse, both lights are burnt out, There is a wiring or ground issue.
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
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
Brake Lights Don't WorkThe brake lights and turn signals are on a separate circuit of their of their own and thus independent of the tail lights and side marker lights ["running"] lights.There could be several causes for this problem, and without being able to see and troubleshoot the brake light wiring circuit no one can tell you the specific cause.Some of the possible causes include:Brake light switch is not adjusted properly.The fuse for that circuit is "blown" out.A wiring harness connector anywhere in that circuit has become unplugged, or loose.The ground wire or wires for that circuit have become disconnected, or the connection of the ground wires to the vehicle's grounded body sheet metal has been blocked by corrosion.A wire in the circuit has been cut, broken, or pulled loose.The brake light switch has become defective.There are probably a few other causes I have forgotten about.
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.
Blown fuse or bad brake light switch?
The one who hits the other in the rear end is at fault, no matter if the person in front of them has working lights are not, because by law they will say you were following to close and should of had enough distance between you and the other car to avoid the collision.
The brake lights are a separate circuit from the other lights. Check the fuses and bulbs. If fuses and bulbs are okay I would suspect the brake light switch is at fault.
I had this same problem. If the bulbs and the fuses are good its most likely the brake switch. Its a plunger like switch on the brake pedal. Its usually the only thing on the brake pedal. Its pretty easy and cheap to change. I would start there.
The bulb is burnt out. If the problem was a fuse, then all brake lights and probably the dashboard lights would be out as well.
Check your owners manual. If you don't have one copy & paste this link. http://www.genuineservice.com/genuineservice/en/gloveboxresults