Five problems related to hazard flashing warning light unit have been reported for the 2001 Chevrolet Blazer. The most recently reported issues are listed below.
My hazards and brake lights don't turn on.
We own a 2001 Blazer and recently the brake lights are on all the time. Also, the hazard lights and turn signals don't work. If you hold the hazard switch part way down and hold it very steady you can get the brake lights and signals to work. I've tried contacting my local dealer, but they tell me this is not covered by any recalls. I will have to replace the entire multi function turn switch. From what I see online, it looks like the 2000 Blazer has already had a recall for a hazard switch problem. I would bet the 2001 model is identical.
2001 Chevrolet Blazer: brake lights stayed on while vehicle was parked and off. Hazard lights did not work. Turn signals did not work. Engine ran while ignition was off. Noticeable amount of smoke came from steering column. There was a recall (01v364) for a faulty multi function switch, dealer said they performed it already. Dealership diagnosed problem and said the same multi function switch needed to be replaced again.
My brake lights are not working, nor my turning signals and hazard lights. Took it in, they said its a multi-function switch / turning signal switch. . The cost is 400 dollars.
While driving 30 mph consumer was informed by another driver that the brakes lights were inoperative. Vehicle was taken to the dealer for inspection, and mechanic determined that the hazard switch carrier needed to be replaced.