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.
2021 Subaru Outback BaseFACTORY OEM SERVICE PROCEDURE
Replace Body Integrated Unit
- Check and record the current setting. Ref. to BODY CONTROL (DIAGNOSTICS)>REGISTRATION BODY INTEGRATED UNIT>OPERATION>CONFIRM CURRENT SETTING .
- Prepare all immobilizer keys already registered. (Models without keyless access with push button start system except for CO and C5 models)
- Replace the body integrated unit with a new part.
- Removal: Ref. to BODY CONTROL/COMMUNICATION SYSTEM>BODY INTEGRATED UNIT>REMOVAL .
- Installation: Ref. to BODY CONTROL/COMMUNICATION SYSTEM>BODY INTEGRATED UNIT>INSTALLATION .
- Set the current settings as recorded. Ref. to BODY CONTROL (DIAGNOSTICS)>REGISTRATION BODY INTEGRATED UNIT>OPERATION>REGISTRATION BODY INTEGRATED UNIT (FUNCTION SETTING) .
- Register the immobilizer. For detailed operation procedure, refer to "Type G" described in "REGISTRATION MANUAL FOR IMMOBILIZER". (Models without keyless access with push button start system except for CO and C5 models)
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.