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Why would the automatic headlights on your 2000 Pontiac Grand Prix go out whenever you switch on the heater blower and the headlights start working if switched on manually but then the blower stops?
Wiki User
∙ 15y ago
This is a problem with the ignition swtich assembly becoming worn on an older vehicle and the contact points that power-up the accessory circuits as well as the engine electrics fail to make good electrical contact. The resolution is to replace the ignition switch assembly, which would run about US$300. maybe it could be the alternator? this won't go on for long before requiring replacement.
Wiki User
∙ 15y ago
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What are advantages of automatic street lights.?
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I have no idea. Did you ever solve this? My dash board lights became very dim whenever I had the headlights on and my battery light kicked on occasionally. I thought it was the alternator so I just replaced it. The battery light issue is solved but the dash light brightness is still extremely low whenever I turn the headlights on.
