Backup/Proximity Sensors Quit Working

Guys, over the last couple of days my backup and proximity sensors are not beeping and blinking on the dash when I back up and park, or when I get close to something. I checked my fuse box and didn't see any fuse listed as such. Any help or thoughts??
'18 Tundra CM

I just installed an amp and sub for the JBL system 2 weeks back, but that is wired into a 10 amp ignition circuit. I did not unplug the amp, but may do that to see if this is the problem. I don't think it is since I still have power to the amp and the 10 amp ignition fuse seems fine.

 

I just had a recall for that and ECU recall to update

 

Stupid question here, have you check the rear parking disable button, the button just to the right of the steering column above the trailer brake controller? to see if its lit (activated) ?

 

Good call. My dealer turns mine off every time I take the truck in for service. They also turn off the fogs and move my headlight setting to "off" from "auto".

 

And I thought it was just me

 

Sorry all, I had inadvertently turned the park assist off when I was detailing my truck last Sunday. What a dumbazz!! Just goes to show, I don't detail my truck enough!

 

Gotta love the easy fixes.

 

Hey Guys- So, my proximity/back up sensors did go out. Worked fine, then POOF, they've been out for about a month. My '07 does not have a On/Off switch on the right side like the other gentleman or a SONAR switch like my wife's '11 Sequoia. I went through the fuse box and the manual with no luck. Not really stoked on the idea of taking it to the shop to track down an electrical issue
Any ideas are appreciated