Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSSUBARU2012IMPREZA WRX STI F4-2.5L DOHC TURBOREPAIR AND DIAGNOSISACCESSORIES AND OPTIONAL EQUIPMENTANTITHEFT AND ALARM SYSTEMSTESTING AND INSPECTIONSYMPTOM RELATED DIAGNOSTIC PROCEDURESCHECK SECURITY SYSTEM CONDITION MEMORY
2012 Subaru Impreza WRX STI F4-2.5L DOHC Turbo
Check Security System Condition Memory
2012 Subaru Impreza WRX STI F4-2.5L DOHC TurboSECTION Check Security System Condition Memory
Security System
CHECK SECURITY SYSTEM CONDITION MEMORY
1. Pull out the key from the ignition switch, or turn the ignition to OFF.
2. Close all the doors, trunk lid or rear gate.
3. Open the front hood.
4. Press the LOCK button of the keyless transmitter.
NOTE: Wait until the security indicator light blinks twice within 0.5 seconds at 2 second intervals. If the 30 second monitoring lag has been set, wait for 30 seconds.
5. Disconnect the ground cable from battery.
6. Connect the battery ground terminal.
7. Check that the security indicator light blinks twice within 0.5 seconds at 2 second intervals. When it does not blink, replace the body integrated unit.
CHECK SECURITY SYSTEM CONDITION MEMORY
1. Pull out the key from the ignition switch, or turn the ignition to OFF.
2. Close all the doors, trunk lid or rear gate.
3. Open the front hood.
4. Press the LOCK button of the keyless transmitter.
NOTE: Wait until the security indicator light blinks twice within 0.5 seconds at 2 second intervals. If the 30 second monitoring lag has been set, wait for 30 seconds.
5. Disconnect the ground cable from battery.
6. Connect the battery ground terminal.
7. Check that the security indicator light blinks twice within 0.5 seconds at 2 second intervals. When it does not blink, replace the body integrated unit.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.