First you have to check your flasher, this is located where the fuse box is, this could be one of your problems.
They sell bypass pulleys but you may need to remove compressor to install (this I'm not sure about but looks like you have to.) I s there an easier fix?
Fix them then.
there are 2 flasher cans in vehicle.one operates hazards and the other operates the blinkers. change the one that operates the blinkers and your blinkers will work
They dont work. The bulbs are the most problems. Fix it!
Make sure the bulbs are good.
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Replace the turn signal flasher relay.
Turn the hazards on and check for a burnt-out bulb.
Haven't looked at a newer GM, but the problem always used to be the cruise control, usually the short cable from the cruise module on the drivers side inside fender. Don't know if they still use the same system or not, but something to look at.
Check the blinker fluid.
If you check the fuse circuit box, there is a fuse for your blinkers. Just change to the amp that is required which is probably a 20. Should work good as new again
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