/dv
Disable a vehicle mode for the specified player
In the game
Usage: /disablevmode <PlayerID> <VehicleModeTarget>
This command allows you to disable fire key, secondary fire key, horn key or all keys for the specified player.
VehicleModeTarget Values: 1 = Fire Key (/sfm), 2 = Secondary Fire Key (/ssfm), 3 = Horn Key (/shm) and 4 = All.
The target player is NOT notified about the change. They can use the /rvm command to reset their vehicle modes to the defaults.
The shortcut for this command is: /dv
What it does
Not explained in detail yet.
Wiki