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Username Post: Caprice - Rear Park Assist Sensor Not Working - No Error Code        (Topic#345514)
Forum Newbie
Posts: 2

Reg: 06-19-17
06-19-17 08:07 AM - Post#2696524    


The park assist on my caprice 2007 has stopped working. The rear park assist system engages when I put the car in reverse gear and the LCD display shows the distance (RAG lights) with beeping sensor . However I have noticed for past few days or so it has stopped working, I am not able to pinpoint the reason why and how to fix it.

1. I got some repair service done to my engine timing belt for which engine block head cover was opened, but I doubt anything over there would have disturbed the park assist, is it so. ?

2. Along with park assist, I noticed that my rear brake lights are not glowing high beam red when pressing the pedal and stay lit at normal intensity. I got it checked with a local electrician and he concluded that brake pedal sensor has gone bad and needs to be replaced. Could this be somehow linked with the park assist system.

I am not receiving any orange check engine light on my dashboard. I have the bluetooth OBD II adapter which I am using with Android (Torque app), however a scanning shows no error codes in the buffer, I am not sure even if brake pedal or park assist systems malfunctions, would it throw an error code or not.

As of now clueless as how to get it fixed.

Thanks for your patience to appreciate any possible guidance for the solution.


Very Senior Member
Posts: 4070

Reg: 12-29-02
06-19-17 06:48 PM - Post#2696648    
    In response to HyperEscape

The Torque app only does engine codes (and maybe antilock brake codes) so it won't do other body system codes.

The brake light issue could be related.

Forum Newbie
Posts: 2

Reg: 06-19-17
06-20-17 02:49 AM - Post#2696695    
    In response to 65_Impala

Thats an information to know. So how and which readers do read all body codes. I am sure they must be in the professional series.

Do all sensors show body codes if malfunctioning.


Very Senior Member
Posts: 4070

Reg: 12-29-02
06-21-17 09:55 AM - Post#2696895    
    In response to HyperEscape

Yes, you probably have to get into a TechII type system to read other codes.

No, not all sensors or circuits in a vehicle will throw a code.

Super Senior Member
Posts: 14037
Loc: Baltimore, MD
Reg: 11-27-04
06-22-17 07:56 PM - Post#2697124    
    In response to 65_Impala

The brake lights not working should not affect the park sensors. See what circuit the sensors are on in your owner's manual and check that fuse. Also, is there a switch to turn off the park assist? Most vehicles have one and yours may have gotten accidentally shut off.

Some days it's not worth chewing through the restraints.

1999 Silverado Z71 4X4 extra-cab short bed
1983 Malibu Fauxmad - tubbed
1978 El Camino Kustomized
1972 Monte Carlo
1957 210 handyman wagon
1957 Nomad sport wagon


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