[remonical]

Originally Posted by FotoCEO

2004 model -

Eliminate the beeping when in reverse inside the car. I could see having it beep outside the car since pedestrians nearby may not realize that the car is on, but the driver and passengers don't need the alert.

To FotoCEO, et al:

Thanks to a fellow Prius owner, you can easily fix the beeping problem. This worked on my 2004:

Reverse Beep

To turn off the "beep" when putting the car in reverse, follow the
instructions inserted below. Enjoy the silence .

1. Power on the car to IG-ON or READY. IG-ON will do for this purpose.

2. Using the Trip/ODO button, set the Trip/ODO display to ODO (not Trip
A or Trip B)

3. Power off the car.

4. Now power the car to READY (brake on). This is required so that step
6 works correctly.

5. Within 6 seconds of powering on, press and hold the Trip/ODO button
for 10 seconds or more.

6. WHILE STILL HOLDING ODO *after* the 10 seconds, shift the "gear"
selector from P to R, then back to P. Now release the Trip/ODO button.

7. If the last step was successful, "b on" or "b off" should be
displayed in the location where the Trip Odometer or Odometer is
normally displayed. "b on" is beep on, and "b off" is beep off.

8. Press Trip/ODO to toggle the mode.

9. Now power the car off to exit the toggle mode.

10. Power the car on to READY and confirm the reverse beep status by
shifting to R. The beep should not be audible if "b off" was selected,
and should be audible if "b on" was selected


Tie the nav. lockout to the passenger sensor for the seatbelt - thus allowing the nav. to be used when a passenger is in the front passenger seat.

There is a procedure for disabling this on my 2004 Prius in a previous post. It should be available with a search. I understand that it does not work on the 2006. But some variation of the procedure may, so experiment some.