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

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

553 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 battery before working on electrical systems.
•Allow the vehicle to cool down before inspecting or working on the battery.

Symptoms

•Service required message on the dashboard
•Decreased range or performance
•Unusual noises from the electric motor or suspension
•Issues with charging or slow charge rates
•Alerts related to battery health or degradation

Diagnostic Steps

1
Check the vehicle's software version and ensure it is up to date.
2
Access the service menu on the touchscreen to view detailed error codes.
3
Inspect the battery health report for any indications of degradation or issues.
4
Review the vehicle's maintenance history to identify any overdue service intervals.
5
Conduct a visual inspection of key components such as brakes, tires, and suspension for any apparent wear or damage.

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 (compatible with Tesla)
•Tire pressure gauge
•Socket set
•Torque wrench
•Multimeter

Parts Required

•Brake pads (if replacement is necessary)
•Tires (if replacement is necessary)
•Battery coolant (if topping off is necessary)

Related Faults

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Diagnostic Steps

1
Check the vehicle's software version and ensure it is up to date.
2
Access the service menu on the touchscreen to view detailed error codes.
3
Inspect the battery health report for any indications of degradation or issues.
4
Review the vehicle's maintenance history to identify any overdue service intervals.
5
Conduct a visual inspection of key components such as brakes, tires, and suspension for any apparent wear or damage.

Solution

1. Software Update

Sub-steps:
1. Connect the vehicle to Wi-Fi.
2. Navigate to the "Software" tab on the touchscreen.
3. Check for available updates and follow prompts to install.

2. Battery Inspection and Maintenance

Sub-steps:
1. Open the trunk and locate the battery compartment.
2. Inspect for any visible leaks or corrosion around the battery terminals.
3. If corrosion is present, carefully clean it with a mixture of baking soda and water (ensure power is off).
4. Check the battery coolant level and top off if necessary with the appropriate Tesla-approved coolant.

3. Brake System Check

Sub-steps:
1. Remove the rear wheel covers to access the brake calipers.
2. Inspect brake pads for wear; replace if thickness is below 3mm.
3. Check brake fluid level and replace if it appears contaminated or below the minimum level.

4. Tire Inspection and Rotation

Sub-steps:
1. Check tire pressure and inflate to the recommended PSI.
2. Inspect tire tread depth; replace any tires with tread below 2/32 inches.
3. Rotate tires according to the manufacturer's specifications.

5. Suspension and Steering Components

Sub-steps:
1. Perform a visual inspection of the suspension components for signs of wear or damage (e.g., bushings, shocks).
2. Test for play in the steering by turning the wheel side to side and listening for unusual sounds.
3. If any components are damaged, replace them as per Tesla service guidelines.