Ultrasonic Park Aid System NO SOUND!!

[brozell]

2008 Silverado. I've tried new sensors, new wiring harness and new park assist module. Info center DOES NOT say "service park assist" or "park assist disabled". There's the red flashing light on the indicator(no yellow) in the back passenger corner of cab but no chime/chimes while backing or nearing an object. Any ideas short of a dealer visit???

Edited May 29, 2015 by brozell

[newdude]

It doesn't make the beep noise that gets faster when you get close to objects?

 

Does your turn signal chime work? Door ding?

 

The system does set codes as well.

Edited May 29, 2015 by 15HDriver

[Shannon Hayes]

I'm having the same problem with my park assistant not having sound. Also I don't hear the keys in the ignition or the seat belt chime. Any help?