[newbie scripter]

use
[pawn] tags..

try to add this in the starting of OnGameModeInit..

pawn Код:

for(new i = 0; i < MAX_VEHICLES; i++)
{
new engine, lights, alarm, doors, bonnet, boot, objective;
GetVehicleParamsEx(i, engine, lights, alarm, doors, bonnet, boot, objective);
SetVehicleParamsEx(i, 0, lights, alarm, doors, bonnet, boot, objective); 
}