Park Sensor numbers? 1 to 4?

[tengelman]

Hi there,

My 2011 Yukon Denali says "service park assist" and the OBD says that the rear sensor no4 is bad.

Which one is number 4?

Regards
Dennis

 

[2010WhiteHoe]

how could you tell which one is bad?

 

[tengelman]

1 is drivers side.
2....3....
4 is passenger side.

I asked a dealer.

Easy fix. fast change.

 

[Doubeleive]

You can always check each sensor individually by standing to the side of the vehicle and reach over and cover each sensor one at a time with your hand and listen for the beep, if one does not beep then it is bad or not connected.

 

[tengelman]

@whitehoe: sorry...misunderstood your question.

If found out which one is bad with an OBDII-Device.
It clearly says the number. I just didnt know what side number 4 is first...

@Doubeleive: i dont think so. the sensor that was broken on my yukon made the whole system shut down. so as long as there are not ALL 4 sensors working you wont hear any beep...

Attention: After replacing - the error message does not disappear until you put in reverse the first time.