Hazrd lights not working

Is the bulbs burned out? That causes the rear to flash fast did one go out then the other or at the same time? Sounds like bad front bulbs. If not check the connector.

Replace or unplug the switch.

try cycling hazrd switch on off if it improves condition replce hazard switch if ur having not flashing correctly can also be caused by a bad bulb

replace the hazard switch, sounds like it is internally stuck on.

Try wiggling the turn signal switch and see if brake lights and or turn signals start working.Gm did have a recall on the multifunction switch on later models but it did affect earlier models as having the same problem. It's is possible that the multifunction switch is the cause of it all but is also possible that the flasher relay has gone bad but the relay wil only affect the turnsignal and hazrd flashers.

If you can locate the hazrd flasher unit under the dash on the drivers side, the turn flasher unit should be right beside it and looks the same. Unplug and switch the 2 flashers and see if the turn signals work. The flasher unit is a silver and round. they are usually close to the stering colum. Let me know if that helps.

you have not told us whether your hazrd lights are working.......if they are, then you will have to replace your turn signal switch, which will require removal of the steering wheel, and cover surround.......if your hazrd lights are not working, you will have to replace your blinker relay, because the hazard lights use this relay also, it is a good indicator of a relay failure.....

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It will either be a broken wire under the rear of your car where gravel sones hit a lot, or bad bulbs. Yes, they are the same bulb for tail lights as brake and hazard and signal, but they have 2 filaments. One is for the tail lights, the other for the rest. A test light is the simplest way to check it all out.

Hi Nette, sound like your combination switch is malfunctioning. you need to replace that switch with known good part.