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
Camera View Angle Inspection Mode (Models With Mirror HBA)
WARNING: This page is about a different car, the 2022 Subaru WRX. However, it is still accessible from the selected car via links, so may be relevant.
Diagnostic procedure:
Drive the vehicle under the following conditions with the high beam assist ON in the night time.
- Activate the high beam assist operation (high beam assist indicator illuminates).
- Drive at least 20 minutes in total at a vehicle speed of 55 km/h (34 MPH) or more, on a road with many straight sections and clear lane markings on both sides (white, orange and dashed lines are acceptable).
NOTE:
- Always perform the operation under such ambience (dimness) that the high beam light can turn to ON/OFF automatically.
- Avoid a road with only a center line.
- Avoid a road where the strong wind can blow the vehicle from side to side, and also avoid weaving within a lane. (Because the vehicle may judge that the lane is not straight.)
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.