Skip the auto shop - Our mechanics make house calls

Q: No instrument lights when headlights are on

asked by on

When the car is on my climate control lights are on and work answers my P R D1 D2 etc on the dash board works but when I turn on my headlights they all turn off and dash lights don't turn on like my speed rpms and fuel my tailogjts still work idk what it could be

My car has 200000 miles.
My car has an automatic transmission.

Hi there. The dash lights when the headlights are turned on, are controlled through the dimmer light control switch. The rheostat in the switch may be faulty. If, there is no change turning the control switch. Check the instrument panel fuse. The fuse is good and still not working. A circuit test will have to be done to confirm whether, the headlight switch or dimmer switch is at fault. I recommend your inoperative dash light w/headlights on be diagnosed and repaired by a certified technician with YourMechanic.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. No instrument lights when headlights are on

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Temperature gauge goes to high when car is stopped

To begin, this isn't something an inspection would reveal unless the mechanic was specifically looking for it. Firstly, how high does the temperature gauge rise when you come to a stop? It is normal for this to occur, especially in...

Q: need to replace housing thermostat for a 2002 vw beetle. how do i do that?

Hi Jill. Thanks for writing in to us tonight. Although we'd like to help you with instructions, we are unable to attach documents or images to this platform - or email them to people. The best bet is to purchase...

Q: Car starts, but won't go forward

The fluid would not be an issue unless the fluid has leaked out. The transmission fluid shouldn't need to be changed or flushed out in this case. The transmission front pump may have failed due to leaking internal seals. The...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.