Three problems related to hazard flashing warning light unit have been reported for the 2002 Chevrolet Impala. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Chevrolet Impala based on all problems reported for the 2002 Impala.
I have a 2002 Chevrolet Impala LS. Bought used in 2005 had 72,000 miles. It now has 89,800 miles. Since I have had the vehicle I have had to replace the bcm module, rebuilt transmission, replace the pcm module, replace all four rotors along with brake pads all around, and now my left turn signal has stopped working intermittently. The right turn signal works fine. When the left turn signal is working the hazards work fine as well, but when the left isn't neither does the hazard lights. Along with the problem it disengages the traction control, which therefore disengages the cruise control. I read on a forum that replacing the hazard switch will fix this problem however not my case. I have been told to replace the turn signal module, but the part is 299. 99 plus labor or the dealership told me they could troubleshoot the problem, but at astronomical labor charges. From all the forums I've read and my own problems the 2000-2002 Impalas are nothing, but garbage! this will be my last american made car! very very disappointed Chevrolet customer.
Suddenly blinker lights would not work, if you move or use the hazard light switch the blinker lights will start to work, sometimes. You have to constantly jiggle or move the hazard light switch for the blinker lights to work.
I have a 2002 Impala and the same problem as everyone else. My blinkers will randomly stop working. When I push the hazard lights on and off 3 or 4 times the blinkers start to work again.