A faulty regulator on some models will cause the head lights to change intensity. The alternator needs to be replaced for this issue.
Average mileage: 139,119 (72,000–201,000)
10 people reported this problem
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Head lights change intensity while driving.
Head lights will flicker as well as lights on dash, erratic , not all the time
Lights changing intensity.
headlight intensity varies
The head light intensity has varied on this car since I bought it. Have lived with it up to current time of 166,000 miles.