Four problems related to hazard flashing warning light unit have been reported for the 2004 Chevrolet Impala. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Chevrolet Impala based on all problems reported for the 2004 Impala.
Turn signals do not opera rate all the time, when they fail hitting the hazard lights button seams to make them operate.
I have had issues with lights for the past 6 months. First started out where if I had my bright lights on every now and again all my lights would go off while driving. The bright lights wouldn't stay on so had to hold to keep them on. Then it came a period of time where all my lights would not work. On Friday, June 27th 2014, I was at work and happened to look out the window and noticed my lights were on. Went outside to see if car was dead. When I got in the car I could see that my steering column was smoking (on fire) coming from the turn signal switch. The bright lights had stuck to on somehow and this is why I could see that my llights were on. I unhooked the battery and the smoking stopped. When I went to hook battery back up there wasn't any more smoking but my windshield wipers were going as fast as they could and I couldn't switch or do anything to make them stop. The hazards or all my lights were blinking on/off repeatedly. Nothing I could do to stop. As of now I'm driving without any fuse to the wipers and the lights work during the daytime but will not work at all after dark. I've been told the part that is needed to replace this is a multi-functional switch. However, this is going to cost $800 to replace. Many complaints out there about the same thing happening to same year/make/model car and no recall??.
The turn signals stop working for no reason. Both right and left turn signals will just not work. I found a temporary fix on a car forum on the web. If you turn the hazard light switch on and off a few times then the turn signals will work again for awhile. At first it happened only occasionally. Now it is happening on a daily basis. And you don't find out until you are going to make a turn or switch lanes on the highway. I found so many complaints about this problem on the car forums to indicate to me that mine is not an isolated problem. This is the second electrical complaint I've had to make on this car. The other problem was with the speedometer and other gauges not functioning which required a very expensive fix.
The turn signals and hazard lights no longer blink when turned on. The bulbs light up but do not blink on and off.