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Discussion Starter · #1 ·
Yesterday, my radar warning light came on. Basically telling me the radar warning system was not active.
As it was raining heavily, I assumed it was due to this, plus the fact I've been having some building work done ( loads of dust around ).
When I got home, I quickly cleaned the badge area on grille and it cleared the fault.

I'm slightly alarmed that rain can affect the radar system so easily. I suppose though, it errs on the side of caution if there is a any slight interference with it filed of view.

Anyone had the same issue?

P.S. it's amber warning at top of right hand clock during system check.

Gesture Yellow Communication Device Mobile device Font
 

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Yes I have had that in heavy rain, but I think was the camera by the rear view mirror that was getting blocked. (Wet leaf stuck there).
 

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Discussion Starter · #4 ·
I thought the camera in screen was for Roadsign recognition and auto headlamp beam assist? Radar behind grille is for cruise?
 

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adn1962 said:
I thought the camera in screen was for Roadsign recognition and auto headlamp beam assist? Radar behind grille is for cruise?
Might be a coincidence in my case.
 

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It is the light for the radar sensor located behind the emblem on your grille.

With the warming light there was no message like "clean radar sensor"? That can happen in heavy rain or when it is dirty.
Sometimes the light and error can dissapear in few miles.. otherwise a quick wipe over the Toyota logo will be ok. Sometimes it need a restart.
 

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Discussion Starter · #7 ·
DutCHR said:
It is the light for the radar sensor located behind the emblem on your grille.

With the warming light there was no message like "clean radar sensor"? That can happen in heavy rain or when it is dirty.
Sometimes the light and error can dissapear in few miles.. otherwise a quick wipe over the Toyota logo will be ok. Sometimes it need a restart.
No message. Just warning light. I cleaned the emblem and it was OK after.

I know through working in car manufacturing that:- radar unit behind grille is for cruise and camera top of screen is Road Sign recognition and auto high beam.
 

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Discussion Starter · #10 ·
Anixie said:
Always happens in heavy rain. Just when you could really use it.......
Not washed mine for a couple of weeks, plus the heavy rain............&#x1f937-1f3fb-2640;
 

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I get often get that at night when it's cold and the screen gets condensation on it. Only way to clear it is to put the demister on high and leave it on until the car warms up. Not useful if you are only travelling 3 or 4 miles
 
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