How to add keys to a VehicleSeat?

For example, I have to press whatever key to turn on the lights or lock your car, is there any way to make that kind of script?

Hello Gam3r_Play3r. I believe I have a way you could go about this. Note that I will not be providing exact working code, rather explaining how to do this.

I had a similar issue a while back when making a vehicle, in order to make this work I used a script in the seat and had a value in the script named Sitting. I used this value to tell me when somebody is sitting in it, and then I also had a value named PlayerName, so that I could get the players name.

To get this to work, all you need to do is use TouchedService:

local Seat = script.Parent
Seat.Touched:Connect(function(Hit)
	local Player = game.Players:FindFirstChild(Hit.Parent.Name)
	if Player then
		script.Sitting = true
		script.PlayerName = Hit.Parent.Name
	else
		return false
	end
end)

Seat.TouchEnded:Connect(function(Hit)
	script.Sitting = false
	script.PlayerName = ""
end)

The above script just changes the values which can then be detected by another script, best of luck! Remember if this helped you, please accept it! ;D