Is the high beam light the low beam light?
But high beam lights seem to be the low beams, hi beam dash indicator is on and lights point down lower .. Switch to low beam and lights move up. I had taken the annoying HIDs out and put original bulbs back in.. only thing I can think of is maybe the bulb is upside down?
What’s the difference between high and low headlamps?
The high and low is only 1 bulb per side. The GMCs have a shutter that covers the bulb slightly in low mode and when in high mode the shutter moves up out of the way and exposes the whole bulb to shine through the projector lenses. We apologize for this headlight concern you’re experiencing!
How can I tell if my headlamps are working or not?
The fog lights, turn signal/marker lights, and tail lights all work. I tried auto and on on the switch. I tested for power at the headlight fuse and did not have any with the headlights turned on. The light on the dash turns on indicating that the headlights are turned on. Any ideas where to look?
What kind of headlights do GMC Sierra 1500s have?
2014 GMC Sierra 1500, Last night I got into my truck and neither my high beams or low beams would turn on in my truck. The fog lights, turn signal/marker lights, and tail lights all work.
Why do high beam headlights work but low beams don’t?
Most headlight systems are also designed with a relay that switches the power between low beam and high beam headlights. If this relay goes bad, it could allow power to the high beams, but not the low beams. 1. Headlight Bulbs This is the most common reason we see for why a car’s high beam headlights work but the low beams don’t.
Why are my headlights not working at night?
Still, if you drive a lot, especially at night when you must constantly change between high beams and low beams, you might wear out the headlight switch. It doesn’t take long to restore fogged headlights and night visibility.
How many headlight relays for low and high beams?
Check in your owner’s manual, you should have 2 headlight relays- one for low beam, one for high beam. Having both low and high elements on when the stalk is pulled back is normal. As soon as you let it go, then you’ve changed the light setting from high to low or vice versa.
How does a high beam light bulb work?
Get familiar with the fuses and relays that control your headlights. The headlight switch usually doesn’t control the headlight bulbs directly, but through one or more relays. The headlight switch powers a relay, which powers the headlight bulb. This protects the headlight switch from the high current used by the high beam headlights.