How can the flashing red liight be deactivated on the message key

That's normal. It is indicating your ignition security system is activated and your key is required to start the key or deactivate the security. There is nothing to "reset". If the red light is not flashing when the key is not in the ignition, then there is something wrong with your ignition security system.

• 3 flashes - deactivator switch is open or circuit defective.
• • Flash code 3 - deactivator switch circuit failure
  • Central junction box (CJB) fuse 13 (20A).
  • Circuitry.
  • Deactivator switch.
  • Speed control servo.
  • Go To Pinpoint Test H .
  PINPOINT TEST H: FLASH CODE 3 - DEACTIVATOR SWITCH CIRCUIT FAILURE
• CONDITIONS DETAILS/RESULTS/ACTIONS H1 CHECK THE DEACTIVATOR SWITCH CIRCUITRY
  Speed Control Servo C122
  Measure the voltage between the speed control servo C122 pin 9, circuit 307 (BK/YE), harness side and the speed control servo C122 pin 10, circuit 57 (BK), harness side.
  
  • Is the voltage greater than 10 volts?
  Yes INSTALL a new speed control servo. REFER to Speed Control Servo in this section. REPEAT the self-test.
  
  No GO to H2 . H2 CHECK DEACTIVATOR SWITCH POWER
  Deactivator Switch C1025
  Measure the voltage between the deactivator switch C1025, circuit 10 (LG/RD), harness side and ground.
  
  • Is the voltage greater than 10 volts?
  Yes GO to H3 .
  
  No REPAIR the circuit. REPEAT the self-test. H3 CHECK CIRCUIT 307 (BK/YE) FOR AN OPEN Measure the resistance between the speed control servo C122 pin 9, circuit 307 (BK/YE), harness side and the deactivator switch C1025, circuit 307 (BK/YE), harness side.
  
  • Is the resistance less than 5 ohms?
  Yes INSTALL a new deactivator switch. REFER to Speed Control Deactivator Switch in this section. REPEAT the self-test.
  
  No REPAIR the circuit. REPEAT the self-test.

Demo(factory) mode is deactivated by holding the switch on for approximately 20 seconds, until light flashes and goes out.

Normal function is press once for high, a second quick press for low, a third press for strobe.

You have unheard messages on the voicemail system provided by your telephone company. This system records messages when someone calls while you're already on the phone. Please contact your telephone company for instructions on accessing their voicemail system.

The red light means the Immobiliser has not been turned off, the deactivator in the key must not be working correctly, visit your local land rover dealer who will be able to make sure the key is paired to the car correctly, otherwise you may need a new key.

To turn DND (do not disturb) on and off on any Samsung phone systems (inc. Prostar, DCS, OfficeServ) watch this video clip. Or visit http://www.AbbeyTelecom.com for more vids.

Followed your recommendation of holding the valet (red) button for 6 seconds. It deactivated the alarm system and I was able to start the vehicle. This solution saved me from buying another key from the dealership (139$) and a programming charge of (100$). And not to mention the time saved from towing the vehicle to the dealership. I can't thank you enough for time and money saved with this valuable service. Will be signing up with your service when I get back from Orlando.

That's your security system either activating or deactivating. It usualy stops after a couple of minutes.

here is link to your owners manual subzero.com
and here are instructions for using the lock feature..

LOCK For Models 685 and 695, the lock feature is used to prevent unintended ice and water dispensing. When the dispenser is locked, all key pads on the glasswell are deactivated to allow cleaning or to prevent small children from using the dispenser. To activate the lock feature, hold down the LIGHT key pad on the glasswell until the key pad lights flash once and the red LOCK icon is illuminated (approximately five seconds). The lights will remain in the state they were in before the lock feature was activated. To deactivate the lock feature, hold down the LIGHT key pad until the key pad lights flash once and the red LOCK icon is no longer illuminated (approximately five seconds). The lights will remain in the state they were in before the lock feature was deactivated.
Thanks Peyton

Open the door insert key in ignition. turn to on

Now hold down the red button which should be flashing, untill silent

this will deactivate the alarm.