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why is my Tesla Model S Original (2012-2020) giving a "service required" message - Tesla Model S
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why is my Tesla Model S Original (2012-2020) giving a "service required" message

Tesla Model S Plaid/Refresh (2021-present)

Error Codes
2-4 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
505 words

Problem Statement

Learn how to diagnose and fix the 'service required' message in Tesla Model S (2012-2020). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component
Electrical
Estimated Time
2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the 12V battery before working on electrical systems to prevent shocks and shorts.
  • •Allow the vehicle to cool down before inspecting the battery or brake components.

Symptoms

  • •Service required message displayed on the dashboard
  • •Reduced performance or power
  • •Unusual noises from the vehicle
  • •Battery range noticeably decreased
  • •Alerts for specific systems (e.g., brakes, suspension)

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

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

  • •OBD-II scanner
  • •Tire pressure gauge
  • •Brake fluid tester
  • •Socket set

Parts Required

  • •Tesla-approved brake fluid
  • •Replacement brake pads (if necessary)
  • •Replacement tires (if necessary)

Additional Information

Affected Component
Electrical
Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
4 items
Parts Required
3 items

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Solution
1. Preparation
  • Gather necessary tools and replacement parts.
  • Ensure the vehicle is parked on a level surface and turned off.
  • Disconnect the 12V battery for safety when working on electrical components.
2. Retrieve Error Codes
  • Use an OBD-II scanner compatible with Tesla vehicles to retrieve any stored error codes.
  • Document the codes for reference in diagnosing specific issues.
3. Inspect and Maintain Battery
  • If battery health is poor, consider performing a battery maintenance service:
    • Check the battery's coolant levels; top off if necessary with Tesla-approved coolant.
    • Inspect the battery connections for corrosion or loose terminals.
4. Brake System Maintenance
  • Check brake fluid level:
    • If low, add Tesla-approved brake fluid to the reservoir.
    • If the fluid is contaminated, perform a complete brake fluid replacement.
  • Inspect brake pads and rotors for wear. Replace if necessary.
5. Tire Inspection
  • Measure tire pressure using a tire gauge; inflate to the recommended PSI level.
  • Inspect tires for uneven wear or damage; replace if necessary.
6. Software Update
  • Ensure the vehicle’s software is up-to-date:
    • Connect the vehicle to Wi-Fi and check for available updates in the settings menu.
    • Install any pending updates to enhance system performance and fix bugs.