Parts for your 2017 Mitsubishi Lancer-Tail lights

2017 Mitsubishi Lancer Tail-Lights: Purpose, Care, and Replacement Tips

Tail-lights are absolutely fitted and required on the 2017 Mitsubishi Lancer. This is confirmed by Mitsubishi’s 2017 Lancer Owner’s Manual and service information for the rear combination lamp assembly, and mandated under the Australian Design Rules (ADR 13/00 and ADR 49/00 for lighting installation and rear position lamps) as well as the NZ Transport Agency’s Land Transport Rule: Vehicle Lighting 2004. So yes—tail-lights are relevant, used, and essential on this model.

On the 2017 Lancer, the tail-lights form part of a rear combination unit that houses the tail (rear position) lamp, brake lamp, indicator, reverse lamp, and reflectors. Their main job is to make the car visible from behind at night and in poor weather, and to signal intentions when braking or turning. Some Lancer variants use conventional bulbs, while others incorporate LED elements—either way, the principle is the same: be seen clearly and stay compliant for rego or WOF checks.

When it’s time for servicing, it’s worth giving the rear lights a proper once-over. Owners can quickly check for blown bulbs, dim or patchy illumination, cracked lenses, moisture ingress, and faded reflectors. If one side looks noticeably duller, voltage drop, a failing bulb, or an earth issue could be the culprit. For bulb-equipped units, the tail/stop lamp is commonly a dual-filament type (e.g., W21/5W/7443), but always confirm the exact spec in the owner’s manual or parts catalogue for the specific trim.

Replacement is straightforward on most trims: access the rear lamp through the boot trim, undo the retaining fasteners, and twist out the bulb holder. Avoid touching glass bulbs with bare fingers—use gloves or a clean cloth. If the lens is cracked or the housing has moisture, replace the full assembly to prevent repeat failures. For LED-equipped assemblies, if an LED segment fails, the usual remedy is replacing the entire lamp unit because the LEDs are not serviceable individually.

• Keep lenses clean and clear, remove road grime with mild car shampoo.
• Check operation of tail, brake, indicator, and reverse lights monthly.
• Use quality bulbs with the correct wattage and colour, cheapies can run hot or fail early.
• If warning lights or rapid indicator flash appear, test bulbs and fuses, then inspect earth points.

Staying on top of tail-light maintenance keeps the Lancer legal, visible, and safer in Aussie and Kiwi conditions, especially in rain, fog, or on rural roads.

Popular questions about 2017 Mitsubishi Lancer tail-lights

What bulb type does the 2017 Lancer use for its tail/stop light?
Most variants use a dual-filament bulb (commonly W21/5W or 7443) for the combined tail/stop function, with separate bulbs for indicators and reverse. Some trims may have LED tail sections. The safest move is to check the owner’s manual or the label on the lamp holder to confirm the exact type for your specific Lancer.

How can someone tell if the tail-light needs a full assembly replacement?
If there’s a cracked lens, persistent condensation, corroded terminals, or a dead LED segment (on LED-equipped units), a full assembly swap is the right fix. If only one filament is out and the lens is intact and dry, a simple bulb replacement generally does the trick.

Is it legal to drive with a blown tail-light in Australia or New Zealand?
No. Both ADR requirements and NZ’s Vehicle Lighting Rule mandate working rear position lamps. Driving with a blown tail-light can attract a defect notice or fail a rego/WOF check, and it reduces visibility to other road users. Replace the bulb or assembly as soon as possible.