One problem related to turn signal switch has been reported for the 2003 Chevrolet Impala. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Chevrolet Impala based on all problems reported for the 2003 Impala.
I purchased from valley Ford 4/18/2009 I have had nothing but trouble with it ever since I purchased it. I have had rocker arms replaced, pins, the aftermarket warranty company wouldn't replace them because they told me that it was not an internal problem, I have had pass lock problems which I had to get done, I just replaced the transmission in 2012 the computer on the car read that it was shift solenoids when it turned out to be the transmission. Now as of the past three months my low beam head lamps will not come on . The day time running lamps work but when it gets dark they shut off & the parking lamps stay on. The only way I will be able to drive is to hold the turn signal towards me, its not the bulbs they have been replaced & its not the fuses and no one seems to know what the problem. My cruise control light flashes on and off while im driving & while the switch is off & also my check engine light flashes on & off but when I take it to auto part store to have it hooked up to the machine it doesn't read anything. . . . . I ask that you guys can please help me with this car, & I also have proof of everything I just wrote receipts and all.