Front parking sensor keeps alarming.

34418 Views 25 Replies 19 Participants Last post by Surrey C-HR, Apr 10, 2022

The_beltsander

Discussion Starter · Mar 10, 2017

I posted something about this yesterday and having brought it back to dealers I thought I'd share my experience because it can't possibly just be my car that's having the issue.

The problem was that the front parking sensor kept alarming even when the road ahead is clear . The only way to stop it was to disable the park assist (the sensors, nothing to do with the self parking option) on the settings screen.

To clarify, sensor 1 kept alarming:
View attachment 412

I bought it back to the dealers this morning and after several test drives, emails and tech reports to Toyota, phone calls to to Toyota Ireland and about 2 hours it turns out the problem was the number plate surround that the garage fitted had been triggering the front sensor randomly. It's also not the first time Toyota Ireland had heard of the issue.

It can't possibly just be my garage that's made this error.

Hopefully this will be of use to anyone having a similar problem.

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1 - 20 of 26 Posts

Kostas_F

· #2 · Mar 10, 2017

Silly error.
Thanks for the info.

LEGENDMAC

· #3 · Mar 10, 2017

I work out how to turn my parking sensors on!

LEGENDMAC

· #4 · Mar 10, 2017

I Can't work out how to turn my parking sensors on I mean!

The_beltsander

Discussion Starter · #5 · Mar 10, 2017

On the heads up display go right over to settings (the cogs)
Hit down and there should be an option there to toggle them on off.

holyhead

· #6 · Mar 10, 2017

LEGENDMAC said:
I Can't work out how to turn my parking sensors on I mean!

Read the topic,
http://www.chrforums.uk/viewtopic.php?f=11&t=324

LEGENDMAC

· #7 · Mar 10, 2017

Thanks will have a look at the heads up display tomorrow!

LEGENDMAC

· #8 · Mar 11, 2017

Thanks guys all sorted. Saved me hours!

IslandCHR

· #9 · Mar 14, 2017

Thank You so very much for this...My CHR has been in the garage to get this fault fixed. I shared this thread with them and sure enough, it was the number plate being too long.

What they did notice is the the Number plate plinth on the Excel is different to that on the Dynamic, hence the fault seems to be on Excels only.

Thanks again...Looking forwards to enjoying my CHR at last.!

The_beltsander

Discussion Starter · #10 · Mar 17, 2017

IslandCHR said:
Thank You so very much for this...My CHR has been in the garage to get this fault fixed. I shared this thread with them and sure enough, it was the number plate being too long.

What they did notice is the the Number plate plinth on the Excel is different to that on the Dynamic, hence the fault seems to be on Excels only.

Thanks again...Looking forwards to enjoying my CHR at last.!

Ah ok that makes sense,

My CHR is a sol trim. The first one to go through my local toyota garage, it must have the same plinth, hence why nobody else's car had the same issue.

major47

· #11 · Jul 31, 2018

hi I have a 2018 Dynamic and my front sensors keep going off - I removed the front plate and the problem was solved. My dealer doesn't seem to know what to do as permanent solution , my plate overhangs the plinth which it doesn't on the 2017 models, although the plate is the same size!.
Any solutions or suggestions out there?

Karmalakas

· #12 · Jul 31, 2018

Attach it like this
https://www.chrforums.uk/viewtopic.php?f=11&t=647&start=30#p9641

mozzerscfc

· #13 · Aug 28, 2018

I had the same problem but it stopped as soon as it started, not sure what was up with it

Although there was nothing on them I cleaned the front sensors and it stopped so I asssume it was road dirt

Bazc1

· #14 · Nov 6, 2018

I think my car may have the same problem, going to speak to the dealer and see what happens, I have a 2018 Dynamic

Thore

· #15 · Nov 7, 2018

I had the problem by not beeping. Complained twice to vendor. They raised the Number plate higher up, do not know how
mutch.
If I was you, I will have tried to renovering the plate for a trail ride, and see if the beeping stoppes.

icemangrmed

· #16 · Nov 16, 2018

I had the same problem, took some time to figure it out, now it's all good

Pete123

· #17 · Dec 11, 2018

Thanks You very much for this info ...problem solved

Bazc1

· #18 · Dec 11, 2018

The dealer repositioned the number plate a bit higher and the problem was solved, if the number plate hangs below the plinth the sensors pick it up, all good now!

boncryp

· #19 · Apr 16, 2020

Hi
Im having same problem today, its happened all of a sudden. The other day had to remove battery to charge it. When installing it back everything was fine except for IPA which I needed to be driving the car at over 25mph for like 5 seconds but that was sorted and sensors also worked fine. Today i am having this front sensor problem as explained on this forum. Haven't tried the number plate thing as i have just read this but it was all working fine yesterday? Any suggestions please?
Thanks

adn1962

· #20 · Apr 22, 2020

Did you find out why the plinth was too long? Did dealer fit wrong one, or is there a derivative for Excel spec?

1 - 20 of 26 Posts

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