Skip the auto shop - Our mechanics make house calls

4 Essential Things to Know About Your Car’s Interior Lights

Car Interior Lights

Most vehicles have interior lights that are also called dome lights or courtesy lights. These can be located on the ceiling of the vehicle and illuminate when people enter or exit the car. The lighting normally stays lit until the vehicle is turned on so the passengers can safely fasten their seat belts. In addition, interior lights can aid in reading maps or finding lost items in the dark. The following are a few things you should know about your car’s interior lights.

Dim Lights

If your interior lights seem dim, this may be a sign of an alternator failure or the battery is going out. A simple way to determine if it is the alternator is to test the voltage. Special equipment, such as a voltage meter, is placed on the battery terminal and is read while the engine is running. If the reading is low, it may be time for an alternator replacement.

Flickering Lights

Flickering lights can be a mean a variety of different things, some of which include corrosion on the battery, electrical problems, a malfunction on a switch, or a bad alternator. The best idea is to have a mechanic do a basic inspection on your vehicle including battery and cables, to find out the root cause of the problem.

Lights Stay On

If your interior lights stay on even after the door closes check to make sure the front hood is properly latched. If it is, a sensor may not be working properly. A mechanic will be able to properly diagnose the problem and make any adjustments to your vehicle.

Replacing Interior Lights

Interior lights generally only need to be replaced when the bulb goes out. Some people do prefer LED bulbs in their vehicles, if you are one of them, YourMechanic can change out the bulbs for you. It takes proper tools and knowledge of the vehicle’s lighting system to properly change the bulbs, so this is best left to the professionals.

The interior lighting system of your vehicle comes in handy when putting on your seat belt, reading a map, or finding lost objects while going down the road in the dark. It is important to have a professional mechanic take a look at your vehicle if you have any problems with the lights, as it takes special knowledge and tools to deal with the car’s electrical system.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

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!

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.


Post a question and get free advice from our certified mechanics.


More related articles

Insurance Requirements for Car Registration in Kentucky
The Kentucky Transportation Cabinet requires that all drivers in Kentucky carry liability automotive insurance, or “financial responsibility” in order to operate a vehicle legally and maintain vehicle...
How to Transfer a Car Title in Idaho
In order to prove ownership of a car, you must have the title. However, when a car is sold, given away or inherited, the title needs...
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...

Related questions

Q: Should I Have a Car Battery Charger?

A car battery charger is a valuable component of any vehicle emergency kit. They are easy and safe to use if you read the instructions and understand the specifics of the model you own. Keep in mind, though, that these...

Q: Tailights and dash lights stopped working

Hi, check the fuse box and make sure that the fuse hasn't blown. If the fuse is okay, the switch may need to be replaced or there is a connection issue with the circuit. Over time corrosion can build up...

Q: Lights on dash suddenly started flashing while driving, accompanied by car surging & stalling

The vehicle may have a problem with the power relay in the central junction box that powers the ignition and computer on the car. The relays and connections to the junction box will need to be checked if the problem...