[saikumar]

pawn Код:

CMD:respawnv(playerid, params[])
{
    new PlayerName;
    if(!IsPlayerAdmin(playerid)) return SendClientMessage(playerid,COLOR_NICERED,SEM_NIVEL);
    new bool:vehicleused[MAX_VEHICLES];
    for(new i=0; i < MAX_PLAYERS; i++)
    {
        if(IsPlayerConnected(i) && IsPlayerInAnyVehicle(i))
        {
            vehicleused[GetPlayerVehicleID(i)] = true;
        }
    }
    for(new i=1; i < MAX_VEHICLES; i++)
    {
        if(!vehicleused[i])
        {
            SetVehicleToRespawn(i);
        }
    }
    new msg[128];
    format(msg, sizeof(msg), "Admin %s (%d) has respawned all unused vehicles", PlayerName(playerid), playerid);
    SendClientMessageToAll(COLOR_YELLOW, msg);
    return 1;
}

try this