Why would a handbrake stop holding the car?
The three most common reasons are a stretched or worn cable, worn rear brake pads or shoes (the handbrake usually works through the same rear brakes), or — on cars with an electronic parking brake — a fault with the motor, sensor or module that operates it. Which one it is can only be found by someone checking the rear brakes and the handbrake mechanism itself.
Is a handbrake fault the same on every car?
No. Most older and many current cars use a cable-operated handbrake lever that works the rear brakes mechanically. Many newer cars use an electronic parking brake operated by a button, which works the same rear brakes but through a motor instead of a cable. The checks are different for each, which is why it helps to know which type your car has before booking.
Can I adjust the handbrake myself?
On some cable-operated handbrakes a small amount of adjustment is possible, but it's easy to mask a worn cable or worn rear brakes rather than actually fix the cause. If the handbrake has gone noticeably looser over time rather than always having a long travel, it's worth having it checked rather than just winding in the adjuster.
Is it dangerous to drive with a handbrake that doesn't hold?
Yes, potentially — the handbrake is there as a backup and to hold the car on a slope, including when parked. If it isn't holding reliably, the car could roll when left on any kind of incline. It's a safety item, not just an inconvenience.
Will a weak handbrake fail an MOT?
A handbrake that doesn't hold firmly enough is one of the things tested at an MOT, and it's common for it to come up as either an advisory or a failure depending on how far out it is. An advisory on its own isn't a failure — it's a note that something will need attention before long — but it's worth sorting before it becomes one.
Can I check my car's MOT history for handbrake advisories?
Yes — any vehicle's MOT history and advisories can be checked free on the government's own service, which is worth doing if you want to see whether a handbrake issue has already been flagged at a previous test.
What will ONEFIX do about it?
Every check at ONEFIX includes a written digital vehicle health check with photographs, so you can see exactly what's worn — cable, shoes, pads or the electronic mechanism — rather than just being told it needs work. We quote any work in writing before it starts, and nothing is carried out without that quote being approved.
How much does it cost to fix a handbrake fault?
It depends entirely on what's actually wrong — a cable, rear brake components and an electronic parking brake motor are three very different jobs with three very different costs. Once the fault has been found, you'll get a written quote for that specific repair before anything is carried out.
What does a proper handbrake check actually involve?
On a cable handbrake, that means checking the cable itself for stretch or fraying, the linkage it pulls on, and the condition of the rear brake shoes or pads it operates. On an electronic parking brake, it means checking the motor, the switch, and reading any fault codes stored by the system. Either way, the car needs to go up on a ramp — it isn't something that can be judged from the driver's seat.
What if the noise is a grinding rather than the handbrake not holding?
That's a different symptom with a different likely cause — see our guide on grinding noise when braking if that's closer to what you're hearing.
What should I do next?
If your handbrake isn't holding the car reliably, book it in at ONEFIX, Plas Acton Garage, Chester Road, Wrexham, for a proper check rather than relying on it until it clearly fails.