Anyone know how to reprogram a Karr alarm system?

My Prius came with a Karr alarm system and during a recent project, I touched what I thought was a ground wire to the chassis and now the Karr system will not accept the Prius remote's unlock button to disarm the vehicle. What I have done for now is placed the system in "Valet Mode" which is a temporary work-around, but when I called the Karr representative, he said he would need to make a mobile visit to reprogram it for $100. I'm sure it's something simple and will try to "unplug" it for a few minutes from 12 volt power and then reconnect it to see if it will "reboot".

But if that doesn't work, does anyone here know how to reprogram a Karr system? I've been reading that it must be done after a power up, power down cycle within 3 seconds and then the driver's door lock-unlock buttons are then used to reprogram the features. Any help or links as to how to do this would be appreciated.

 

I finally was able to answer my own question so if anyone should need to disable, enable or modify Karr alarm programming - here's how:

To enter "Valet Mode" (or disable the Karr alarm) - while Prius power is "On", press and hold the blue button below the blue LED for 5 seconds. You should see the blue LED become steady on and this disables the system completely. NOTE, the OEM alarm is defeated too.

To exit "Valet Mode" to return to normal operation - within 3 seconds of the Prius power "On", press and hold the blue button below the blue LED until the LED goes out. Karr system is now operational.

To program or reprogram features:

Turn Prius on

Press and release Karr button 3 times

Short LED light with 1 short horn

Before 3 seconds, turn Prius off

Horn will give a short-long chirp

Within 3 seconds, turn Prius back on (now in programming mode)

Horn will give a long-short chirp


Press Karr button one time per option (there are 4 options) the Karr LED will flash the number of times per option you are on. If you want to change an option, within 1/2 second, press the driver's side power lock/unlock button. If you wait 1/2 second or longer, the default program will be used.

Option 1 (one flash): wait ½ second and horn should chirp once (auto-lock with ignition on)

Option 2 (two flashes): wait ½ second and horn should chirp once (auto unlock with ignition off)

Option 3 (three flashes): wait ½ second and horn should chirp twice (passive arming and lock without lock)

Option 4 (four flashes): wait ½ second and horn should chirp twice (active arming)

Turn Prius off to exit programming.

 

If you have a KARR alarm, the button should be mounted on the panel below the mirror adjustors near your left knee and above the parking brake. If you can't locate it, maybe you have a different aftermarket system or someone unscrewed the button assembly and tucked it behind that panel.

 

The OEM Toyota smart key fob is the same remote to control the KARR system. What's different about the KARR is that when you arm it, you will get a chirp out of the horns and the parking lights flash once. To disarm, you will get 2 chirps from the horn and 2 flashes from the parking lights. Remember to press the unlock button twice if you want to unlock all doors.

 

Hi - sorry, there doesn't appear to be a quiet mode with the KARR system.