Parts for your 2017 Mitsubishi Lancer-Interior bulbs

2017 Mitsubishi Lancer Interior Bulbs

Interior bulbs are absolutely fitted to the 2017 Mitsubishi Lancer. Technical sources including the 2017 Lancer Owner’s Manual and the Mitsubishi factory Service Manual/Electrical Wiring Diagram confirm the presence of interior illumination such as map lights, a roof (room) lamp, vanity mirror lights, glove box and luggage/boot lamps. These lamps are standard across the range to aid visibility and cabin usability.

The purpose of the interior bulbs is simple: clear, comfortable lighting inside the cabin and boot. They help with finding seatbelt buckles at night, reading a map, checking on passengers, and loading the boot safely. On most Lancers of this year, the common fitments are small wedge bulbs (often W5W/T10) and festoon-style lamps (around 31 mm), though exact sizes can vary by trim level and market. Owners should confirm specifics against the vehicle’s owner’s manual or the lamp markings.

• Typical locations: front map/reading lamps, centre roof (room) lamp, vanity mirror lamps, glove box lamp, and boot lamp.
• Common types: T10/W5W wedge and festoon (approx. 29–31 mm), depending on the position.

As part of routine servicing, it’s wise to check the interior lights for operation and evenness of colour and brightness. These bulbs aren’t on a fixed replacement interval—swap them when they’re dim, discoloured, or blown. When replacing, match voltage (12 V) and wattage to avoid melting lenses or overloading circuits. If upgrading to LEDs, choose CANbus-friendly or “error-free” options that play nicely with the factory fade/dimmer function, and note LED polarity (flip the bulb if it doesn’t light). Avoid overly high-output or blue-tinted lamps that can create glare or hot spots in the small housings.

For a no-drama changeover: switch the interior light off, let it cool, and use a plastic trim tool to gently pop the lens—metal screwdrivers can mark the plastics. Wear gloves or avoid touching halogen/festoon glass with bare fingers. Test the bulb before refitting the lens. Keeping a small set of spare interior bulbs in the glove box is a handy idea, especially for night driving.

These small lamps make a big difference to everyday usability, and with correct bulb choice they’ll last for ages while keeping the Lancer’s cabin crisp and comfortable after dark.

Popular questions about 2017 Mitsubishi Lancer interior bulbs

What interior bulb sizes does the 2017 Lancer use?
Most 2017 Lancers use T10/W5W wedge bulbs for map and sometimes boot or glove box lamps, and 29–31 mm festoon bulbs for the roof (room) and vanity mirror lamps. Variations exist by trim and market, so it’s best to confirm against the owner’s manual or remove and check the existing bulb before buying.

Can the interior bulbs be replaced with LEDs?
Yes. Quality LED replacements work well and run cooler with a cleaner colour. Choose CANbus-friendly LEDs to prevent faint glow or flicker with the factory fade. Ensure the LED’s physical size suits the housing, and respect polarity—if it doesn’t light, rotate it 180 degrees.

How often should interior bulbs be changed?
There’s no set interval, replace on condition. If a lamp is dim, inconsistent in colour, or blown, change it. During regular services, a quick check of all interior lights helps catch a failing bulb early so the cabin stays practical at night.