High/low Beam Switch Problems of Chevrolet Trailblazer

2005 Chevrolet Trailblazer headlights dimmed while driving for no reason. Vehicle brought to dealer, they stated it was normal due to an air pump turning on and off. I felt it was very dangerous due to other driver's thinking I am flashing the headlights at them. That happened about 10 times a week while driving at night. I have found online many other owners with the same problem. . Read more...

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2002 Chevrolet Trailblazer -- I have experience a reoccurring problem (about 6 times over the last couple of weeks) where the low beam headlights go off during operation of the vehicle. Nothing I have found can force them to come back on; however, usually after 5 or 10 minutes they seem to return to the normal on condition by themselves. The high beams work ok, tail lights, dash lights, turn signals, etc. Are not effected while the low beams are in this condition. Additonally one day I noticed the day time running lights in this same state. I had the vehicle in the dealer, bill heard Chevrolet (sanford, FL), and they were unable to reproduce the condition. I contacted gm/Chevrolet, and they agreed that unless the condition could be reproduced, there would not authorize or make any attempt to replace any parts to attempt to correct the problem. This seems to be a rigid stance to take, especially since I never know when this can happen again, and it is obviously an extreme safety issue for not only myself and family, but others on the road with me at the time. I don't know how to proceed at this point, and don't know if this has been reported by any other owner.

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Rear view outside mirrors change settings unexpectedly while car is in motion. Dealer had one recall. Didn't fix problem. . . . . . . . . . . . . Also intermittent loss of high beam. . . . . They either come on or don't come on. This has been happening since we purchased the car.