-- 근처 차량 탐색 함수
function GetNearestVehicle(coords, radius)
    local vehicles = GetVehiclesInArea(coords, radius)
    local nearestVehicle = nil
    local nearestDistance = radius

    for _, vehicle in ipairs(vehicles) do
        local vehicleCoords = GetEntityCoords(vehicle)
        local distance = #(coords - vehicleCoords)
        if distance < nearestDistance then
            nearestVehicle = vehicle
            nearestDistance = distance
        end
    end

    return nearestVehicle
end

-- 특정 반경 내의 모든 차량을 가져오는 함수
function GetVehiclesInArea(coords, radius)
    local vehicles = {}
    local handle, vehicle = FindFirstVehicle()
    local success

    repeat
        local vehicleCoords = GetEntityCoords(vehicle)
        local distance = #(coords - vehicleCoords)
        if distance <= radius then
            table.insert(vehicles, vehicle)
        end
        success, vehicle = FindNextVehicle(handle)
    until not success

    EndFindVehicle(handle)
    return vehicles
end

-- 주변 차량의 빈 좌석 확인 함수 (운전석 제외)
function GetEmptySeats(vehicle)
    local emptySeats = {}
    local maxPassengers = GetVehicleMaxNumberOfPassengers(vehicle)

    for seat = 0, maxPassengers - 1 do
        if IsVehicleSeatFree(vehicle, seat) then
            table.insert(emptySeats, seat)
        end
    end

    return emptySeats
end

-- 특정 좌석의 좌표를 얻는 함수
function GetSeatCoords(vehicle, seatIndex)
    local pedInSeat = GetPedInVehicleSeat(vehicle, seatIndex)
    if pedInSeat == 0 then -- If the seat is empty, get its coordinates
        local offset = GetOffsetFromEntityInWorldCoords(vehicle, 0.0, 0.0, 0.0)

        if seatIndex == 0 then
            offset = GetOffsetFromEntityInWorldCoords(vehicle, 0.5, 1.0, 0.0) -- Front passenger seat
        elseif seatIndex == 1 then
            offset = GetOffsetFromEntityInWorldCoords(vehicle, -0.5, -1.0, 0.0) -- Rear left seat
        elseif seatIndex == 2 then
            offset = GetOffsetFromEntityInWorldCoords(vehicle, 0.5, -1.0, 0.0) -- Rear right seat
        end

        return offset
    end

    return nil
end

-- 플레이어와 가장 가까운 좌석을 찾는 함수 (운전석 제외)
function GetClosestSeat(playerCoords, vehicle)
    local emptySeats = GetEmptySeats(vehicle)
    local closestSeat = nil
    local closestDistance = math.huge

    for _, seat in ipairs(emptySeats) do
        local seatCoords = GetSeatCoords(vehicle, seat)
        if seatCoords then
            local distance = #(playerCoords - seatCoords)
            if distance < closestDistance then
                closestSeat = seat
                closestDistance = distance
            end
        end
    end

    return closestSeat
end

-- 차량 내 모든 NPC를 우호적으로 설정하는 함수
function SetVehiclePedsFriendly(vehicle, playerPed)
    local maxPassengers = GetVehicleMaxNumberOfPassengers(vehicle)
    for seat = -1, maxPassengers - 1 do
        local ped = GetPedInVehicleSeat(vehicle, seat)
        if ped ~= 0 then
            SetPedAsNoLongerNeeded(ped)
            SetPedRelationshipGroupHash(ped, GetHashKey("PLAYER"))
            TaskSetBlockingOfNonTemporaryEvents(ped, true)
            SetPedFleeAttributes(ped, 0, 0)
            SetPedCombatAttributes(ped, 17, 1)
        end
    end
end

-- 명령어 등록
RegisterCommand("testC", function()
    local playerPed = PlayerPedId()

    -- 플레이어가 이미 차량에 탑승한 상태인지 확인
    if IsPedInAnyVehicle(playerPed, false) then
        return
    end

    local playerCoords = GetEntityCoords(playerPed)
    local radius = 5.0 -- 반경 5미터

    local nearestVehicle = GetNearestVehicle(playerCoords, radius)
    if nearestVehicle then
        local closestSeat = GetClosestSeat(playerCoords, nearestVehicle)

        if closestSeat then
            -- 차량 소유권을 클라이언트 측에서 변경
            SetEntityAsMissionEntity(nearestVehicle, true, true)
            SetVehicleHasBeenOwnedByPlayer(nearestVehicle, true)
            SetVehicleNeedsToBeHotwired(nearestVehicle, false)
            SetPedCanBeDraggedOut(playerPed, false)
            SetVehicleDoorsLocked(nearestVehicle, 1)

            SetVehiclePedsFriendly(nearestVehicle, playerPed)
            TaskEnterVehicle(playerPed, nearestVehicle, -1, closestSeat, 1.5, 1, 0)

            -- 탑승 후 강제로 좌석을 유지하도록 설정
            Citizen.Wait(3000) -- 차량 탑승 애니메이션이 끝날 때까지 잠시 대기
            TaskWarpPedIntoVehicle(playerPed, nearestVehicle, closestSeat)

        else
            print("빈 좌석이 없습니다.")
        end
    else
        print("반경 내에 차량이 없습니다.")
    end
end, false)


RegisterKeyMapping('testC', 'test', 'keyboard', 'g')

Here is the client code for the content mentioned.
It works very well, but when riding as a passenger in the NPC’s vehicle,
the player gets out of the car by themselves after a short while.
I have handled the vehicle’s ownership and the relationship with the passenger,
but the problem remains unchanged.
How can I solve this?

I have handled the vehicle’s ownership and the relationship with the passenger