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
System Operation Check Mode: List
| Check item | Item 1 | Item 2 | Note |
|---|---|---|---|
| Meter Needle Movement Check | Speedometer | - | - |
| Tacho meter | - | - | |
| Fuel Meter Operation | - | - | |
| Water thermometer | - | ||
| Lamp check | All lamps lighted | - | - |
| Indicator drive | High-beam indicator | - | |
| Position light indicator | - | ||
| Front fog light indicator | - | ||
| Rear fog light indicator | - | ||
| VDC OFF indicator | - | ||
| VDC operation/failure indicator | - | ||
| Hill start assist OFF/failure indicator | - | ||
| LANE OFF indicator | - | ||
| P-CR OFF indicator | - | ||
| REV/RED ZONE indicator | - | ||
| Traction mode indicator | - | ||
| Warning drive | Driver side seat belt warning | - | |
| Airbag warning | - | ||
| TPMS warning | - | ||
| E/G remaining oil warning | - | ||
| AT (CVT) oil temperature warning | - | ||
| R.DIFF oil temperature warning | - | ||
| ABS warning | - | ||
| BRAKE warning | - | ||
| AWD warning | - | ||
| Remaining fuel warning | - | ||
| EPS warning | - | ||
| EyeSight failure warning | - | ||
| Check E/G warning | - | ||
| Charge warning | - | ||
| Oil pressure warning | - | ||
| Vacuum pump warning | - | ||
| HID auto leveler warning | - | ||
| LED LO beam warning | - | ||
| MFD output check | Passenger side seat belt warning | - | - |
| Rear seat (right) seat belt warning | - | - | |
| Rear seat (center) seat belt warning | - | - | |
| Rear seat (left) seat belt warning | - | - | |
| Momentary fuel efficiency display value | - | - | |
| Mean fuel efficiency A display value | - | - | |
| Mean fuel efficiency B display value | - | - | |
| Remaining fuel cruising distance display value | - | - | |
| External air temperature indication value | - | - | |
| Mean vehicle speed display value | - | - | |
| Illumination check | Brightness check | - | - |
| BUZZER | Sounding output ON/OFF | - | - |
| Display Operation Check Mode | White indication | - | - |
| Black indication | - | - | |
| Red indication | - | - | |
| Green indication | - | - | |
| Blue indication | - | - | |
| Gradation indication | - | - | |
| Flicker indication | - | - | |
| Cross talking indication | - | - |
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.