Seven problems related to high/low beam switch have 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.
Lights went off while driving at night. This happened soon,though not immediately, after flipping on the high beams. Fortunately, I was near home and not going fast,so was able to stop without incident. Somehow while playing around with the light switches, they came back on. I haven't tried to get it repaired as I can't get it to repeat the failure. This could have had serious consequences, and I suppose it may happen again.
My headlights stopped working when I was out of town. Only had hi beams if I held the dimmer switch towards me. Once I released the switch, I had no lights. Took the car to my mechanic who replaced the dimmer switch with one from a wrecked car like mine because a new one from gm was $500. Also had heat/ac fan stop working. Now car is making a strange humming noise from the front end that is not coming from the motor. My husband believes the wheel bearings might be bad because our mechanic asked us if we had any problems with them. He has seen several cars like mine with wheel bearing issues.
Recently, I have had 3 or 4 instances where the lights on my 2003 Impala went completely out while I was driving. I had switched the lights between high and low beam. This is rather concerting. My friend reported that her 2002 Impala has also recently began doing the same thing. My limited research led me to this site.
Headlights go off when switching between high beam and low beam.
The contact stated headlights stopped working when the high beam was engaged. The first time, the headlights went out and would not come back on. He drove the vehicle home with the emergency flashing lights engaged. The second time, the headlights went out, but came back on after the dimmer switch was pressed. He took the vehicle to a dealer. The dealer replaced the dimmer switch. There have been no further problems with the headlights. Updated 3/3/2006 -.
Brights cannot be turned off without numerous attempts to make the switch work, resulting in a safety hazard to other drivers, and self due to distraction.
The headlights would come back on by jiggling the dimmer lever arm. Several malfunctions were noticed between the first malfunction and the visit to the dealer for repair. Ak.