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My Car Bucks(sometimes) when I turn on the head lights

On rare occasions, my 2003, EX V6 Honda Coupe, jolts or bucks when, while driving, I turn on the head lights. After the buck/jolt, the car performs normally. It’s as if I jammed on the brakes. I’m concerned this is a precursor to something more serious.

Any suggestions are appreciated.

Check the ground connections to the body and the battery. There might be a spike if you have a poor connection. If it affects your computer this way it might trash the computer if it keeps up.