Contour Enthusiasts Group Archives Forums General Troubleshooting Lost High Beams - HELP!!!

I've never seen both lights blow out at once . That IS a bit strange , but I guess it happened . The high beam indicator on the dash is made to flash when one of your DRL's (or high beams for that matter) blows out . When only one (DRL) bulb blows out ... they BOTH go out . Maybe you only had one bad bulb ... yea well , now you're covered for a while .

Actually, it is not strange for both bulbs to go at once. I need to replace two at a time frequently for customers.

Before the days of halogen bulbs you were pretty safe in just replacing the burned out head light bulb without needing to worry about the other one. With halogens, it is common for the second one to go out within a day or two of the first one. It has become my personal habit to buy two when one blows because I'll usually need the other one very soon.

It is almost always easier to test the headlight circuit with a fresh bulb than with a test light or a volt meter. If a new bulb doesn't solve the problem, then it is time to get out the needed tools to find out why.

They were run in series? Hmmm. Learn something new everyday! I know that some GM high beam DRL's ran the high beam bulbs in series, hence getting the 50% reduction in intensity.

FWIW, my GP runs the low beams at 80%.

No way! GM DRL's in series. That sucks! Why in the H###, would they do that? Don't say because its GM :rolleyes: There must be a reason!!!!