[polly_x]

I tried a search but found nothing on this.

My Cayenne started doing something strange today. Park assist works fine on the front sensors when I move slowly in drive but when I select reverse I get a lower tone beep for about 2 seconds and 2 red lights on both the front and rear sensor panels? No other lights just the 2 outer red ones on each panel?

It only does this in reverse and the system does not sense anything. It fine in Drive and senses perfect??

Any ideas?

Thanks.

[wvicary]

I'm not very familiar with the system but I do not that they are sensitive to dirt on the sensors, maybe give them a good clean to see if that sorts it out.

[Dennis C]

polly_x, on Jan 11 2009, 10:03 AM, said:

I tried a search but found nothing on this.

My Cayenne started doing something strange today. Park assist works fine on the front sensors when I move slowly in drive but when I select reverse I get a lower tone beep for about 2 seconds and 2 red lights on both the front and rear sensor panels? No other lights just the 2 outer red ones on each panel?

It only does this in reverse and the system does not sense anything. It fine in Drive and senses perfect??

Any ideas?

Thanks.

I agree - sounds like dirty sensors. It's an issue in the winter, especially if you are in a snowy area. It can also happen if there is a buildup of ice on the back bumper.

[calvinlim86]

In my experience i think is one of the sensors on the REAR is out or open circuit..
Try check the sensors out.

[stealthn]

I had the issue a couple of times, pressure washers are also not good for them. On my second time I actually need the dealer to reset them as they would not reset to normal even after cleaning.

[voodoocat]

Hi, I just want to let you know that the water drain hose (runs off water from roof/rear hatch channel) is just above the connector to the rear sensors. You'll see it inside LHS rear bumper above exhaust tip.
So every time you wash your car, the connector gets wet. You might want to check this and protect from getting wet.

[porsche85]

voodoocat, on May 21 2009, 02:20 AM, said:

Hi, I just want to let you know that the water drain hose (runs off water from roof/rear hatch channel) is just above the connector to the rear sensors. You'll see it inside LHS rear bumper above exhaust tip.
So every time you wash your car, the connector gets wet. You might want to check this and protect from getting wet.

how do you solve this problem