How to have Haptic Feedback Work In My Game, and where should i put the script?

print 'Hello world!'
local HapticService = game:GetService("HapticService")

local Car = workspace:WaitForChild("Car")
local Seat = Car:WaitForChild("VehicleSeat")
local driving = false

wait()

local function onOccupantChanged()
    -- Check whether someone is getting in the seat or out of it
    if Seat.Occupant then       
        -- Get the player that sat in the seat and check if it's the local player
        local player = game.Players:GetPlayerFromCharacter(Seat.Occupant.Parent)
        if player == game.Players.LocalPlayer then
            -- Local player is sitting in the seat, start low rumble
            driving = true
            HapticService:SetMotor(Enum.UserInputType.Gamepad1, Enum.VibrationMotor.Large, 1)
        end
    else
        -- No one is in the seat anymore, make sure the rumble stops
        driving = false
        HapticService:SetMotor(Enum.UserInputType.Gamepad1, Enum.VibrationMotor.Large, 0)   
    end
end

local function update()
    -- Check if the local player is driving
    if driving then
        -- Get the speed of the seat so we can set the small rumble proportionally
        local velocity = Seat.Velocity.magnitude
        local speedPercentage = velocity / Seat.MaxSpeed
        HapticService:SetMotor(Enum.UserInputType.Gamepad1, Enum.VibrationMotor.Small, speedPercentage)
    else
        -- Player isn't driving, make sure the small motor is off
        HapticService:SetMotor(Enum.UserInputType.Gamepad1, Enum.VibrationMotor.Small, 0)
    end
end

-- Bind Seat's Changed event
Seat.Changed:connect(function(property)
    if property == "Occupant" then
        onOccupantChanged()
    end
end)

-- Setup update loop
while wait() do
    update()
end

******This is all I have I do have a car Named "Car" With a Vehicle Seat Named "Seat" But It still won't vibrate controller in a Local Script In Workspace******