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Pre-purchase inspection checklist — 2018 Mitsubishi Outlander Sport

The 2018 Mitsubishi Outlander Sport is an appealing choice, but prospective buyers should be aware of issues with the Forward Collision Mitigation system and electrical software errors. Verify all software updates are applied and perform a thorough test drive to ensure all systems are functioning properly.

Known issues to inspect

high severityelectrical

FCM software errors

How to check: Confirm software updates for FCM are applied.

medium severitysafety

Adaptive Cruise Control faults

How to check: Check if ACC functions correctly during activation.

medium severityelectrical

Various electrical system issues

How to check: Inspect all electrical functions, like lights and windows.

medium severitysafety

Forward Collision Mitigation prolonged braking

How to check: Test FCM braking response in a safe environment.

medium severitybrakes

Service brake complaints

How to check: Test brakes for any unusual noises or behavior.

Test-drive walkthrough

  1. 01

    Cold start

    What to check: Listen for unusual electrical system noises.

    Red flag: Strange electrical system sounds

  2. 02

    First minute idling

    What to check: Check if dashboard warning lights activate.

    Red flag: Persistent warning lights

  3. 03

    City driving

    What to check: Test FCM and ACC for proper operation.

    Red flag: FCM or ACC malfunctions

  4. 04

    Highway acceleration

    What to check: Observe smoothness and responsiveness of acceleration.

    Red flag: Acceleration hesitates or is rough

  5. 05

    Braking test

    What to check: Ensure brakes engage smoothly and effectively.

    Red flag: Brakes feel spongy or noisy

Questions for the seller

Use this exact phrasing.

  1. Has the FCM software been updated?
  2. Any issues with the electrical system?
  3. Are there any unresolved recalls?
  4. How often have brakes been serviced?
  5. Any collisions impacting safety systems?

Documents to request

Don't sign anything until you have these.

  • Service history records
  • Recall completion report
  • Accident history report
  • Ownership history
  • Warranty documentation

Generated by gpt-4o on 6/18/2026. Grounded in the NHTSA recall corpus and owner-complaint patterns for the 2018 Mitsubishi Outlander Sport.

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