Hazard Warning Switch - 2017 Ecoboost

Hazard Warning Switch - 2017 Ecoboost

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MustangGT

Original Poster:

12,287 posts

287 months

Saturday 17th June 2023
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Hi All,

I am hoping the PH Mustang experts can help with this.

Yesterday our 2017 Ecoboost failed the MoT on the Hazard Warning Light Switch not working. When you push the toggle up, the hazards flash once and then stop. If you hold the switch up it is fine. Apparently a replacement switch comes as a full set of the toggle switches and starter button and is £700ish and on back order.

I am thinking that if I can get the switch out I can clean it up and get it functional again. Presumably I need to remove the fascia in the centre area to get at it?

Any advice and ideas would be much appreciated.

Peter-jforf

32 posts

52 months

Sunday 18th June 2023
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From EX Auto elect......try a good Electrical cleaner....spray well in the switch, could well free up the spring inside the switch.... switches not used often get full of Dust...and jam up. worth a try...... Peter

croyde

23,926 posts

237 months

Sunday 18th June 2023
quotequote all
£700 yikes

The Mustang was a hell of a bargain when I ordered my GT back in 2015 but the sum of all the parts.....

My windscreen cracked and the replacement was £2000. Paid by insurance luckily.

That's like 7% of the then brand new price of the car.

Hope you get it sorted cheaply.

Scrump

22,939 posts

165 months

Sunday 18th June 2023
quotequote all
Try some contact cleaner as suggested by Peter.
My daughter’s car (not a mustang) recently failed the mot for a similar issue with the hazard warning switch.
A spray with contact cleaner and a minute spent working the switch on and off brought it back to life.

MustangGT

Original Poster:

12,287 posts

287 months

Sunday 18th June 2023
quotequote all
Thanks all, I will give it a go.

MustangGT

Original Poster:

12,287 posts

287 months

Monday 19th June 2023
quotequote all
Tried some lubrication and have now got the switch to work, sort of!

If you switch it straight up it still gives one flash only. If you push it up slightly towards the steering wheel it continues to flash. It also feels a bit like the pivot is broken. So, new switch needed at some point.