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Dimming headlights


LousCrew

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Posted

I notice on my 06 Sierra Crew Cab that when I roll the windows up, especially when doing both fronts at the same time, that the headlights dim significantly. Everything is stock. Is this normal on these trucks? Should I, or would ugrading anything help this?

Posted

The windows draw considerable amps. I'd say it's normal. Also, the charging system is monitored and the alternator may not even be "on" at the time. I wouldn't waste my money trying to elimate this characteristic.

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