back up sensor not working

2008 CADILLAC STS

71,300 MILES • 6 CYL • 2WD • AUTOMATIC

U7616BOB

MEMBER
35 POSTS

I noticed recently my back up sensor has stop working. Don't know what has happen, put my car in reverse and no sound when I got near an object. Please reply with a fix solution. Thanks for your assistance and support.

Apr 17, 2021 at 10:29 AM

KASEKENNY

✓ASE Certified Mechanic
18,907 POSTS

We need to start with checking each sensor. I would put the vehicle in reverse and have someone walk slowly behind you to see if any of the sensors are working.

If not, then the system is most likely offline. It is unlikely that all the sensors failed at the same time so I would start with checking for codes if this is the case.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Let's start with this and go from there. Thanks

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Apr 17, 2021 at 6:03 PM

U7616BOB

MEMBER
35 POSTS

Thanks for your reply. By the way, none of the sensors work. I don't have a code checker, so I will take it in to Cadillac dealership. Thanks for your time and attention to this matter. I though it would be something simple I could fix.

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Apr 18, 2021 at 11:13 AM

NICKOLAOSF

✓ASE Certified Mechanic
69 POSTS

Hi u7616bob,

The symptom sounds like a calibration to the distance collision avoidance system,
this will require a special tool that the dealer has.
also note has the vehicle been repaired recent body repair.
I am glad to help you, if there is anything else we can help you with please contact us again. Thank you for choosing 2CarPros.
cheers, Nick

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Apr 18, 2021 at 1:18 PM

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