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

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: HI the battery is dead have a 2012 jeep grand cherokee and can't get to the battery under the seat as no power also tried jump sta

It is possible that the smoke could have been due to the jumper cables being installed backwards. I would recommend double checking to make sure that you connected the cables properly. If you did connect the cables properly and the...

Q: Fog lamps not working even after bulb replacement

It sounds like it is very possible that the fog light relay located in the central junction box is faulty. As long as the foglight switch is trying to activate the relay, then replacing the relay should restore light operation...

Q: Click in steering - 2009 Jeep Wrangler

In many cases on a Jeep, worn out shock mounts or tie rod ends tend to create the clicking sound, especially when you hit a bump in the road, drive over a speed bump and make a hard, slow turn....

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 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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...