Hand brake light flashing up when hand brake not on
Hand brake light flashing up when hand brake not on
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Discussion

Riley26

Original Poster:

307 posts

140 months

Sunday 16th February 2025
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My hand brake light occasionally flashes on for a second or so when my handbrake isn't on. Any ideas of the potential issue? Thanks

Dog Biscuit

1,720 posts

20 months

Sunday 16th February 2025
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Riley26 said:
My hand brake light occasionally flashes on for a second or so when my handbrake isn't on. Any ideas of the potential issue? Thanks
Assuming its a manual handbrake then its likely a failing contact/short in the switch mechanism near the level

snuffy

12,289 posts

307 months

Sunday 16th February 2025
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Dog Biscuit said:
Assuming its a manual handbrake then its likely a failing contact/short in the switch mechanism near the level
I think I've read before that this can happen when cornering on some cars. i.e. as the lever moves, that causes the switch contact to activate.

Athlon

5,697 posts

229 months

Sunday 16th February 2025
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Check the brake fluid level...

Olivergt

2,168 posts

104 months

Sunday 16th February 2025
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Athlon said:
Check the brake fluid level...
This....

Some cars ( Nissan Micra K11 for example) use the hand brake light as the low brake fluid warning.

It should also be a quick and easy check to tick off the list.

Riley26

Original Poster:

307 posts

140 months

Sunday 16th February 2025
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Thanks I will do I'll check the brake fluid is a 51 plate car Suzuki swift

Riley26

Original Poster:

307 posts

140 months

Monday 17th February 2025
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Thanks for the advice yes it's low. Can I just add any brake fluid?

Olivergt

2,168 posts

104 months

Monday 17th February 2025
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Riley26 said:
Thanks for the advice yes it's low. Can I just add any brake fluid?
I would think dot 4 would be fine, but please confirm for yourself.

This is what the ssoc says:

https://www.sssoc.co.uk/forum/topic/brake-fluid-2/

Cold

16,412 posts

113 months

Monday 17th February 2025
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It;s a sealed system so you have to ask where it's gone. Is it just getting low due to brake pad wear or is there a leak?

Riley26

Original Poster:

307 posts

140 months

Monday 17th February 2025
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Can it evaporate at all. I don't think it's been topped up in years. Services have just been oil and filter I think. It's just on the low line now when cold

Olivergt

2,168 posts

104 months

Monday 17th February 2025
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Riley26 said:
Can it evaporate at all. I don't think it's been topped up in years. Services have just been oil and filter I think. It's just on the low line now when cold
It will go down a small amount as the pads wear. If it's just on the low mark, I would suggest that is the likely cause.

If it was me, I would top it up to the full mark and then keep an eye on it.

I would also try and get a look at the pads to see if they are getting close to needing to be replaced as well.