Hazard lights flashing

This vintage era GM vehicle is known for turn signal issues due to bad hazard switches. Replace the hazard switch and everything should return to normal

What fuse are you pulling ?

Hazard Lamps
The hazard warning switch is part of the turn signal switch. The turn signal switch receives battery voltage at all times through the HAZARD SWITCH Fuse. When the hazard switch is placed in the HAZARD position, battery voltage is applied to the hazard lamp/turn signal lamp flasher. The hazard lamp/turn signal lamp flasher sends a turn signal flasher signal to the turn signal switch. The turn signal switch provides all of the turn lamps and turn indicators with the turn signal flasher signal, simultaneously flashing them on and off.

Turn Signal Lamps
The front turn signal lamps are made up of the front park/turn signal lamps and rear turn signal lamps. The front turn signal lamps flash with the rear turn signal lamps when a turn is initiated using the turn signal/multifunction lever. The turn signals will operate only with the ignition switch in the RUN position and will not operate during hazard flasher operation.
When the ignition is turned to the RUN position, battery voltage is supplied to the TURN SIGNAL Fuse. Battery voltage is then applied through the turn signal fuse circuit to the turn signal switch. When the turn signal switch is placed in the LH or RH position, voltage is supplied to the hazard lamp/turn signal lamp flasher. The hazard lamp/turn signal lamp flasher supplies a turn signal flasher signal to the turn signal switch. With the turn signal switch in the LH or RH position the corresponding turn signal indicator, rear turn signal, and front turn signal receive the turn signal switch signal and will flash. The front turn signals receive the turn signal switch signal from the turn signal switch via the BCM. The turn lamps are permanently grounded.

Replace the turn signal switch. Refer to Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle in Steering Wheel and Column - Tilt.

Try checking the voltage of the battery after charging and disconnecting the leads.. Batteries die if being drained too much..

YOU MIGHT HAVE A BURNT OUT RELAY IN FUSE COMPART UNDER YOU CARS HOOD CHECK THAT OUT THRU YOUR CARS MANUAL,IT WILL SHOW YOU WHICH RELAY IT IS?

take out your fuse for hazard then plug back in see if that works

change flasher relay in fuse box

hmmm... looks like ur HAZARD switch or ur ALARM is going!

try to remove the hazard switch or the relay and the fuse, in ur FUSE BOX, to make them stop for the meantime untill u could have a mechanic look at the problem in ur wiring system!


hope that stops evrything!

Yes your right the emergency flasher switch is the flasher and located in the middle of the dash and it has a triangle on it with a point up and a ! in the middle. It's dark red in color and when depressed lights up red and flashes ( if it's working like it's supposed to ) If the fuse for hazard is blown the flasker won't work on turn singal either. The fuse for the hazard is hot all the time and the turn fuse is only on with the key. You might find that when you find the button and push i thaqt the turn signals work normally and after you find why the flashers doesn't work on hazard then the hazards will work too.
with the hazard switch poped out of the dash ( it just pries out) it'll have lot's of wires one will be hot all the time and another will become hot when you turn the key on. the other wires go to the turn signal switch. If you find that the switch works fine and it still does flash on turn but it does flash on hazard with it on as a hazard go around and look at all of the lights. They have to work on both the frontand the back and the indicators in the cluster ( speedometer head ) If they all work and are bright ( not dim light the running light) The hazard switch is bad as it's the flasher is made into it.