Owners of other Mitsubishi vehicles such as the Lancer, Outlander, Mirage, ASX, RVR, Galant, I-MIEV, Montero, Eclipse, 3000GT, Endeavor, Raider, Diamante, Attrage, Carisma, Colt, Grandis, Magna, Pajero and the Space Star may also find these DIY instructions to be helpful.

The compatible replacement festoon or "fuse" style light bulb is part number DE3175.

You can also use a brighter DE3175 LED bulb.

The only tool needed to access and replace the light bulbs is a small flathead screwdriver or a small plastic pry bar tool.

To prevent from scratching the plastic surfaces, you can either wrap the tip of your screwdriver in a thin micro fiber cloth or use a plastic pry bar tool.

Insert the blade of the screwdriver in to the small notch on the rear edge of the lens cover.

Gently pry out the lens cover and set it aside in a safe place.

Pull back the flexible metal electrical contact on the left (driver) side to release the bulb from the socket.

Insert a new number DE3175 festoon bulb in to the socket.

(Tip - If you are installing an LED bulb and it doesn't work at first, try flipping it around the other way in the socket.)

To test the new dome light bulb, slide the switch to the "On" position.

I recommend leaving the switch in the "Door" position so that the dome light will turn on when ever a passenger door is opened.

For more, check out all of my 2011-2017 Mitsubishi Outlander DIY Repair & Maintenance Guides.