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UK
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USA
What to do if…
your parking brake will not release or shows an electronic fault
Short answer
Keep the vehicle stationary and do not accelerate against the parking brake. Make one normal release attempt using the instructions for your exact vehicle, then arrange roadside assistance if the brake remains applied or the fault continues.
Do not do these things
- Do not repeatedly press the parking-brake switch or force the vehicle to move.
- Do not drive if a wheel remains locked, the vehicle drags, or a burning smell develops.
- Do not assume the vehicle is securely held if the display shows a parking-brake fault.
- Do not touch a wheel, brake, or nearby component that may be hot.
- Do not crawl under the vehicle or stand where it could roll toward you.
- Do not disconnect the battery, dismantle the brake, or follow an unverified reset procedure.
- Do not use a manual emergency release unless the procedure is for your exact vehicle and the vehicle has been secured against movement.
What to do now
- Keep firm pressure on the regular brake pedal. Select Park in an automatic vehicle, or follow the manufacturer’s instructions for securing a manual vehicle without relying solely on the parking brake.
- If the vehicle is stopped in or beside moving traffic, switch on the hazard lights. Call 911 if its position creates an immediate danger and follow the dispatcher’s instructions.
- Read the complete dashboard message. With the vehicle powered normally and your foot firmly on the brake pedal, make one standard release attempt exactly as described in the owner’s manual or on-screen prompt.
- Stop trying if the parking brake remains applied, the warning flashes or returns, a wheel will not turn, or the vehicle resists movement.
- Check from a safe distance for smoke, unusual heat, or a burning smell. Do not touch the wheel area. Move people away from the vehicle and call 911 if there is smoke or a possible fire.
- Contact roadside assistance or a qualified towing service. State clearly that the electronic parking brake may be locked so the operator can choose equipment that does not require dragging a locked wheel.
- Photograph the warning message and note any clicking sounds, recent battery problems, jump-starting, locked wheels, or burning smells so you can describe the fault accurately.
What can wait
You do not need to diagnose the switch, wiring, battery, actuator, control module, or rear brakes now. Repair estimates, warranty questions, recall checks, complaints, and decisions about where to have the vehicle repaired can wait until the vehicle and everyone nearby are safe.
Important reassurance
A parking-brake fault does not by itself confirm that the regular braking system has failed. However, you should not assume the vehicle can move or remain parked safely until the fault has been assessed.
Scope note
This guide covers immediate safety and stabilization only. Diagnosis, manual release, towing method, and repair may require roadside assistance, the vehicle manufacturer, or a qualified repair professional.
Important note
This is general vehicle-safety information, not mechanical, towing, legal, or other professional advice. Follow the instructions for your exact vehicle and directions from emergency responders or qualified roadside personnel.
Additional Resources
About this guide
This guide was produced and is maintained by PanicStation.org using its published editorial process. Official and specialist sources are checked where relevant, and AI-assisted tools may be used for drafting, organisation, and consistency checks. The site operator remains responsible for publication, revision, and removal decisions.