how to fix the cruise control not working on my Tesla Model S Original (2012-2020)?

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

484 words

Problem Statement

Learn how to diagnose and fix cruise control issues in Tesla Model S (2012-2020). Step-by-step guide with symptoms, diagnostic steps, and solutions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the 12V battery before working on electrical components.

Symptoms

•Cruise control indicator light not illuminated
•Inability to set or resume cruise control speed
•Sudden disengagement of cruise control while driving
•Unresponsive cruise control stalk or controls
•Autopilot features disabled or not functioning

Diagnostic Steps

1
Check for any error messages or alerts on the vehicle’s touchscreen.
2
Inspect the cruise control stalk and ensure it is not physically damaged or obstructed.
3
Verify that the vehicle's software is up to date by checking in the settings menu.
4
Perform a system reset by powering off the vehicle and then restarting it.
5
Use the Tesla app or interface to check for any fault codes related to the cruise control system.
6
Examine vehicle sensors (e.g., radar, cameras) for cleanliness and proper alignment.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•Tesla mobile app
•Cleaning cloth
•Soft brush (optional)

Parts Required

•New cruise control stalk (if damaged)

Related Faults

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Diagnostic Steps

1
Check for any error messages or alerts on the vehicle’s touchscreen.
2
Inspect the cruise control stalk and ensure it is not physically damaged or obstructed.
3
Verify that the vehicle's software is up to date by checking in the settings menu.
4
Perform a system reset by powering off the vehicle and then restarting it.
5
Use the Tesla app or interface to check for any fault codes related to the cruise control system.
6
Examine vehicle sensors (e.g., radar, cameras) for cleanliness and proper alignment.

Solution

1. Preparation

Gather necessary tools: Tesla mobile app, cleaning cloth, and perhaps a soft brush for sensor cleaning.
Ensure the vehicle is parked safely and turned off.

2. Update Software

Connect the vehicle to Wi-Fi.
On the touchscreen, navigate to 'Software' and check for updates.
If an update is available, follow the on-screen instructions to install it.

3. Inspect and Clean Sensors

Locate the radar sensor located behind the front grille.
Use a cleaning cloth to gently clean the radar sensor surface.
Inspect the front camera (if applicable) for any obstructions; clean it if necessary.

4. Cruise Control Stalk Inspection

If the stalk is damaged, remove it:
- Disconnect the 12V battery (safety warning).
- Remove the steering wheel cover and the screws securing the stalk.
- Disconnect the wiring harness and replace the stalk with a new one.
Reassemble the steering wheel cover and reconnect the battery.

5. System Reset

With the vehicle in Park, go to the touchscreen.
Tap 'Controls' > 'Safety & Security' > 'Power Off'.
Wait for a few minutes, then press the brake pedal to power the vehicle back on.