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 WRX BaseFACTORY OEM SERVICE PROCEDURE
User Customizing: List
| Items to be displayed | Initial setting value | Customize setting | Note |
|---|---|---|---|
| Air temperature correction | ±0°C | -5°C -+5°C | Temperature compensation can only be performed by 1°C (1°C change = 1.8°F) interval. |
| Mean fuel efficiency correction | ±0°% | +10% - -10% | - |
| Second level belt warning customize | 2-stage warning implemented | 2-stage warning implemented/2-stage warning not implemented | - |
| Demonstration mode permission/fault permission | OFF | Demonstration mode permission/fault permission | Demonstration mode must not be permitted when used by a customer. |
Factory Service Tools
Use the Manual With the Right Hardware
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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.