On the tablet, tap the Home button on the right side of the screen.

Locate the Settings application and select it.

Enter the Settings password (gpsield) then tap Apps.

Locate and select Messaging, then tap the Uninstall button.

Once done, and all other updates completed, turn off WiFi (if on) and power cycle the tablet by holding down the power button for 3-5 seconds, then select Power Off on the screen. Once the tablet has powered down it can be re-docked at the vehicle.