Enable a disabled gameobject via javascript?

Hi all. I am trying to build a simple system for entering and exiting vehicles. Currently both the player and the vehicle are the default FPS controllers. I am able to run up to the vehicle controller, enter it, disable the player controller, and drive the vehicle. However, I cannot re-enable the disabled player controller. Any and all help is appreciated. Here is the code I am using, it is applied to the vehicle, which has a trigger for range sensing. Here is my code

 #pragma strict
 
 var inRange = false;
 var inCar = false;
 //This is the player that enters the vehicle:
 var player : Transform;
 //This is the player camera:
 var playerCamera : Camera;
 //This is the Vehicle:
 var Vehicle : Transform;
 //This is the vehicle camera:
 var vehicleCamera : Camera;
 //These are the control scripts for your vehicle:
 private var lookScript : MouseLook;
 private var moveScript : CharacterMotor;
 private var inputScript : FPSInputController;
 
 function Start () {
     playerCamera.enabled = true;
     vehicleCamera.enabled = false;
         //These are the vehicle control scripts.
     lookScript = GetComponent(MouseLook);
     moveScript = GetComponent(CharacterMotor);
     inputScript = GetComponent(FPSInputController);
 }
 
 function Update () {
     if(Input.GetButton("Enter") && inRange == true) {
         if(inCar == false) {
             inCar = true;
             //Switch Cameras
             playerCamera.enabled = false;
             vehicleCamera.enabled = true;
             //Parent player to Vehicle
             player.parent = Vehicle.transform;
             player.transform.localPosition = Vector3(-1.5,0,0);
             //Make Player Invisible
             player.gameObject.SetActive(false);
             //Enable Vehicle Control Scripts
             lookScript.enabled = !lookScript.enabled;
             moveScript.enabled = !moveScript.enabled;
             inputScript.enabled = !inputScript.enabled;
         }
     }
     else if(Input.GetButton("Enter") && inCar == true) {
         //inCar = false;
         //Switch Cameras
         playerCamera.enabled = true;
         vehicleCamera.enabled = false;
         //Unparent player to Vehicle
         player.transform.parent = null;
         //Make Player Visible
         player.gameObject.SetActive(true);
         //Enable Vehicle Control Scripts
         lookScript.enabled = !lookScript.enabled;
         moveScript.enabled = !moveScript.enabled;
         inputScript.enabled = !inputScript.enabled;
     }    
 }
 function OnTriggerEnter (other : Collider) {
         inRange = true;
         Debug.Log("InRange!");
 }
 function OnTriggerExit (other : Collider) {
         inRange = false;
 }

If anyone can help me figure this out, that would be amazing. Thank you in advance.