How to control a car in AirSim using a xbox controller?

[highspeed123]

I had some problems when trying to use a xbox one controller to control a car in AirSim. When using the left stick of the controller, I can control the steering angle, but there were no keys to control the throttle or brake.

My json settings are:
{
"SettingsVersion": 1.2,
"SimMode": "Car",
"Vehicles": {
"PhysXCar": {
"VehicleType": "PhysXCar",
"RC": {
"RemoteControlID": 0
}
}
}
}

It is a very simple json file. I also tried to control a drone with my controller and it worked, but it didn't work when I changed the json settings to a car. There is very little information about using the xbox controller to control the car in AirSim, what should I do? I really appreciate it if anyone can help me with my question.