I had the same problem. There is a recall on certain Trailblazer tail lamps. As I recall, it has something to do with vibration and/or heat causing the brake light bulb to become loose in the socket. This bad connection can burn the bulb out. GM has updated the part, so if this is your problem it should be covered as a safety recall.
in dash lights
Possibly blown fuse, bad brake light switch, or blown brake light bulbs.
That the lights need fixing maybe?? That the lights need fixing maybe??
this car may have separate flashers for the turn signals and the emergency flashers
fuse If your flasher goes bad, You can still have flashers and no turnsignals. I would change the flasher after checking the fuse. == == If you have an adjustable steering wheel, try adjusting up one click. There is something about the setup that causes a wiring short.
It can, if you leave the lights or flashers on too long.
signal lights not working.
A malfunctioning brake light and flasher relay switch will cause the brake lights and flashers to stop working. The relay switch can be found below the dashboard on the drivers side of the passenger compartment.
I am sorry there needs to be more info.on this....are you saying when you have the flashers on and apply the brakes that the hazard lights go out??
There should be six signal lights on the mystique, two front, to rear, and two sidemarker lights.
When parts stop working, a diagram can help pinpoint the cause. The diagram for the turn signal lights on this car can be found in its maintenance manual.
depends on which lights? inside over head? /Dash board?/Doors? /front headlights?/Flashers?/ turn signals?/ Backing lights?/ Parking lights?/ So which ones ? what Year??
short or blown fuse, trailer connection is first place to check
Hazard lights (flashers)
you may have blown the computer chip that regulates your lights its usually your hazard lights button that's the chip.
Try turning the hazard flashers on and off a couple times, see if that starts your signal lights working. If so, replace the hazard switch/module.
If you here a clicking sound when you activate the directionals or 4-way flashers but the lights still don't work, you need to replace your lighting control module.
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.
have you check the tail light fuse to see if it is blown. other possiblly is the headlight switch.
Usally the triangle is emergency signal lights, or flashers.
Could be your emergency lights/flashers are on.
Because the brake lights are the priority circuit.
most times it's becauce your tail lights are not working. most auto makers do that to alert you that your tail lights are not woking.
you probably need to check for a loss connection.
You need to replace your head light switchRutifo