Pre-purchase inspection checklist — 2012 Subaru Impreza
The 2012 Subaru Impreza is reasonably reliable but has notable issues involving engine valve spring failures, brake light switch malfunctions, and occupant detection system problems. Prospective buyers should scrutinize these areas during inspections. Despite these issues, the Impreza can be a solid choice with thorough due diligence.
Known issues to inspect
Valve spring fractures
How to check: Listen for unusual engine noises during startup.
Brake light switch failure
How to check: Check if brake lights illuminate when braking.
Occupant detection system deactivates
How to check: Plug in a device and check airbag status.
Test-drive walkthrough
- 01
Cold start
What to check: Listen for knocking or unusual noises.
Red flag: Loud knocking noises present.
- 02
First minute idling
What to check: Check dashboard for warning lights.
Red flag: Persistent warning lights on.
- 03
City driving
What to check: Test brake responsiveness and feel.
Red flag: Brake pedal feels spongy.
- 04
Stop and start
What to check: Ensure brake lights function properly.
Red flag: Brake lights not illuminating.
- 05
Highway acceleration
What to check: Listen for engine strain noises.
Red flag: Engine struggles or stalls.
- 06
Cruise control test
What to check: Engage and maintain speed easily.
Red flag: Cruise control disengages unexpectedly.
Questions for the seller
Use this exact phrasing.
- Has the brake light switch been replaced?
- Are valve spring repairs documented?
- Any issues with occupant detection system?
- Can you elaborate on engine repairs?
- Have airbags been serviced recently?
Documents to request
Don't sign anything until you have these.
- Recent service records
- Recall repair confirmations
- Vehicle maintenance log
- Engine repair receipts
- Brake service documentation
Generated by gpt-4o on 7/25/2026. Grounded in the NHTSA recall corpus and owner-complaint patterns for the 2012 Subaru Impreza.