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HectorG

Parking sensor malfunction warning

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Once or twice a week at the moment I get a message on the info display on my PHV that the parking sensors aren’t working. This is solved by a quick wizz around with a cloth to clean them. I appreciate that the weather in the UK is dreadful at the moment, but I have never had this problem with my previous cars. I have to admit that all but one of my previous cars with parking sensors have been 4x4 types and therefore higher off the ground. However, I find it difficult to believe the sensors should be so susceptible to dirt (my sensors have been far from covered in mud when I get the warning message) and I wonder if I have a problem with one or more of them being damaged by eg,water ingress, or they’re a bit over sensitive. 
 

It’s very irritating and the other day I forgot they were not working and drove into a parking barrier in a car park! Fortunately at very low speed and no damage done. Anyone else had similar issues on the current model PHV?

 

 

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No problems at all with mine. They have only been cleaned on the rare occasion that the car has been washed

It sounds like a fault that needs to be fixed under warranty. 

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This has happened to mine twice.  I do not regard it as a fault.  Over a year ago in the winter we had sleet and ice.  The car was parked in a street in Birmingham and was covered in snow.  The sensors all round had frozen snow over them and a warning came up of proximity sensors not available.  They were fine after I cleared the snow off. 

I go to work along a country lane which floods and is very muddy.  Last week the car asked me to clean the sensors.

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15 hours ago, mysecondavensis said:

This has happened to mine twice.  I do not regard it as a fault.  Over a year ago in the winter we had sleet and ice.  The car was parked in a street in Birmingham and was covered in snow.  The sensors all round had frozen snow over them and a warning came up of proximity sensors not available.  They were fine after I cleared the snow off. 

I go to work along a country lane which floods and is very muddy.  Last week the car asked me to clean the sensors.

You may be right. I live in a village serviced by a narrow country lane which is very muddy at the moment. However, in the time I’ve lived here I’ve owned 2 Subaru Foresters (2nd gen & 4th gen), a Freelander, a RAV4 (previous gen) and this has never occurred before. But it may be occurring now because the Prius is so much lower. It’s very irritating even so.

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It's a more intelligent system, technology progresses and becomes more integrated

keep some quick detailer and few cloths in the boot - problem solved

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Not had the problem with my current RAV4, nor my last Gen 4 Prius (same height as your car).  The Gen 3 Prius I had before that had the issue once or twice, but it went away after the car went through a hand car wash where they use pressure jets.

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HectorG, My apologies, I was so quick to comment that I overlooked how often you were having the problem.  That is so frequent I would think it must be a malfunction of the system and would definitely want MrT to check it.

I hope you get a satisfactory resolution to it.

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On 1/21/2020 at 9:00 AM, PeteB said:

Not had the problem with my current RAV4, nor my last Gen 4 Prius (same height as your car).  The Gen 3 Prius I had before that had the issue once or twice, but it went away after the car went through a hand car wash where they use pressure jets.

A few years ago a reversing sensor failed on a VW California I had at the time. The dealer asked if I used a pressure washer when cleaning it and, when I confirmed that I did, they conveniently blamed that for the sensor failure.

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1 hour ago, HectorG said:

A few years ago a reversing sensor failed on a VW California I had at the time. The dealer asked if I used a pressure washer when cleaning it and, when I confirmed that I did, they conveniently blamed that for the sensor failure.

Would be interesting if my Toyota dealer tried that!  They use a pressure washer when they valet the car.

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