Our 04 Envoy had a recall on turn signals and tail-lights, they just had to replace a relay. I would check with your dealer to see if your vehicle has been recalled.
Most likely turn signal flasher
head lights won't work, no power to them, signal works , reverse lights work
There is a relay in the trunk (left hand side wall) that may have been burnt. You may want to check this out...had the same problem with my 1992 Camry.....different year of course. The wires to the running lights were broken and exposed, caused a short, which in turn burnt the relay in the trunk.
The cause for a turn signal flasher to keep clicking on a 1999 GMC Jimmy is a bad flasher unit. Replacing this with a new flasher unit should solve this problem.
have you checked the fuses?
brake light switch would be most common cause
Most likely poor wiring.
It can, if you leave the lights or flashers on too long.
Most likely a blown fuse
Check the tail light ground wires.
it could be a faulty alternator bring on all lights
The lights are computer controlled. The under hood computer can set codes and keep the lights from working.
A fast flashing turn signal, on most any vehicle, is an indicator that a turn signal bulb is going out or has gone out on that side(i.e. front turn signal on passenger side flashing fast, check the rear turn signal bulb on passenger side.) This will cause the light on your dash board to flash fast as well. This is generaly a good time to replace all of the bulbs, turn signal, running lights, and break lights, as they are so cheap. Also check deck light or top break light if applicable for burn outs.
A blown bulb. Check fuses and then start replacing the bulbs one by one.
bad wiring in your steering column to the hand control?
Check the fuses, if the fuse is blown you may have a short in the running light circuit.
If the turn signals on a car works but the hazard lights do not there may be a problem with the flasher switch. The flasher is located in the steering column, and a damaged unit can cause the lights to stop working.
BAD BRAKE LIGHT SWITCH AT TOP OF BRAKE PEDAL
the fuse that controls the interior lights, running board,an rear wiper is blown. it is a 15amp fuse in the panel. Also,try the cluster dimmer position since it controls the running board lights and exterior mirror lights as well.This dimmer is located next to the headlight switch.Good luck!
The turn signal wiring goes up the steering column. Turn signal bulbs are also used as brake lights and the brake light signal goes through the turn signal switch. If there is a loose connection or worn wire in the steering column, the tilt would cause problems.
If the engine isn't running, the battery is low. If the engine is running, the alternator probably has a problem. If you are wearing dark sunglasses, remove them and the lights will get brighter. good luck!