How to adjust the handbrake on a Subaru?
In most Subaru models with a traditional cable-driven handbrake, you adjust the rear drum brakes using a star wheel. Newer Subarus with an electronic parking brake (EPB) typically do not require user adjustments, and if the system isn’t holding, it usually needs dealer calibration or service.
Identify the parking brake system on your Subaru
Subarus vary by model year and trim. Some use a conventional cable-connected handbrake that locks the rear wheels via drum-style brakes, while others use an electronic parking brake that operates via motors and a control unit. Correctly identifying the system guides the adjustment steps and safety considerations.
Manual cable-driven parking brake (rear drum brakes)
This section covers models with a traditional handbrake cable that activates rear drum brakes. Before starting, ensure the vehicle is on a level surface, wheels are chocked, and you have the right tools. The process typically involves accessing a star wheel inside the rear brake assembly to adjust shoe clearance.
Tools you will need:
- Jack and jack stands
- Wheel chocks
- Flat-head screwdriver or brake spoon
- Socket set or appropriate wrenches
- Penetrating oil (optional)
Concluding note: With the tools ready, prepare to access the rear brakes and locate the star adjustment wheel behind the brake drum or backing plate.
Step-by-step adjustment
Use these steps to adjust the star wheel on a cable-driven parking brake. Perform with the rear wheels accessible and the drum/rotor removed as needed; adjust in small increments and verify the handbrake engage clearly.
- Secure the vehicle: ensure the transmission is in Park (or first gear if manual), the parking brake is released, and the car is chocked and supported.
- Expose the adjustment area: remove the rear wheel and backing plate or drum to access the star wheel/adjuster through the small access hole.
- Turn the star wheel: using a flat-head screwdriver or brake spoon, turn the star wheel slightly (usually clockwise to tighten the shoes, counterclockwise to loosen). Make very small adjustments.
- Check shoe contact: after a small adjustment, rotate the wheel by hand and pull the parking brake lever to feel for proper engagement. The wheel should offer a light drag with the brake released and should hold firmly when applied with enough leverage (often within several clicks).
- Repeat as needed: continue small adjustments and test until the handbrake holds reliably without excessive travel.
- Reassemble: reinstall the drum/rotor, rear wheel, and lug nuts; lower the vehicle and torque lug nuts to spec.
Concluding: If you cannot achieve a firm hold after a careful sequence of adjustments, the cables may be stretched, the rear shoes may be worn, or other components may need service. A professional inspection is recommended in that case.
Electronic parking brake (EPB) considerations
Many newer Subarus use an electronic parking brake that is controlled by a module and motorized calipers. These systems generally do not require user adjustment. If the EPB feels loose, sticks, or fails to hold, do not attempt mechanical adjustments; instead, arrange a diagnostic with a dealer or qualified shop. EPB issues can involve worn pads/shoes, faulty motors, binding calipers, or software/calibration needs that require specialized tools and procedures.
What to do if you’re unsure or uncomfortable
If you’re unsure which system your Subaru has or you’re not confident working around braking components, seek professional help. The parking brake is a critical safety feature, and improper adjustment can lead to inadequate holding, uneven braking, or failure to release.
Summary
To adjust the handbrake on a Subaru, identify whether you have a traditional cable-driven rear drum brake or an electronic parking brake. For the cable-driven setup, access the rear brakes, locate the star wheel, and perform careful, incremental adjustments until the brake holds firmly with a reasonable lever travel. For EPB-equipped models, manual adjustment is not recommended; seek dealer service for calibration or component replacement. Regular inspection of cables, drums, shoes/pads, and the EPB system helps maintain reliable parking brake performance.
