Q: Lights don't always work

asked by on

The car lights don't turn off and on all the time. The switch seems to be messed up.

The light switch on the Lumina has issues with the head light switch having intermittent problems. The head light relays sticking can also cause this issue. The only way to isolate the problem is to test the relay to see if it is getting the proper signal from the light switch. If all the signals are normal from the light switch then the relay may be sticking and keeping the lights on. I recommend having a mechanic, like one from YourMechanic, check your vehicle out for you to isolate the cause of your lights issue.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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. Lights don't always work

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: Truck cranks but won't start after switching led light bar switch.

Hi there. Although we do not provide specific advice on mechanical issues due to aftermarket part accessory add-on's, it is quite possible that the addition of the amp switch, it's impacted the ignition system. I would start by verifying that...

Q: How do I use the automatic dimming rearview mirror?

The automatic dimming rearview mirror can automatically adjust and dim for you, so that you are safer and have less glare when driving your car at night. The automatic dimming rearview mirror does not need to be turned on or...

Q: Sometimes my car starts immediately and sometimes it takes between 5 and 10 tries.

Your mechanic's diagnosis and explanation could well be correct. This is classic symptom behavior of a failing ignition switch. The contacts become "burned" over time and over lots of "start" cycles. The repair is to replace the ignition switch. ...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
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.