Skip the auto shop - Our mechanics make house calls

Q: Interior lights dont work, what makes them flicker?

asked by on

Last night the lights inside of my 2007 Jeep Wrangler started going all crazy and shutting off and turning back on. The speedometer stopped working for a minute before the headlights started flickering. I pulled over after that! This vehicle has 100,000 miles on it already, so I expect quirks. I just want to know what would cause all of the flickering. I hope it’s not a big problem. Any idea?

If your original headlight bulbs are starting to go bad or they were recently replaced with the wrong wattage bulbs, this could cause the lights to flicker.

Another cause could be newly added fog lights or a similar accessory. The power to the dashboard and headlights is controlled by the Totally Integrated Power Module (TPIM) and if you just added something new to the circuit, the module may require some reprogramming.

A certified mechanic, such as one from YourMechanic, can diagnose your electrical system and make sure everything is programmed properly.

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!

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: Do you come and look at the car and give an estimate.

If you can't put the car in gear while it is stationary, then you are probably right. There is likely a problem with the clutch. My first guess is that there is a problem with the clutch hydraulics rather than...

Q: How do you use the console light?

If your car is equipped with a console light (depending on the trim level), you can turn it on or off with your headlights and parking lights. It will come on automatically when you turn on your parking lights or...

Q: Do I need to install a sway bar link kit with a lift kit on my 2014 Jeep Wrangler

Hello. If you are adding a lift kit to your Jeep you will need to install longer sway bar link pins. This is because the distance from the suspension to the sway bar will change. If you do not then...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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.