my Tesla Model S Plaid/Refresh (2021-present) has a persistent tire pressure warning

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

514 words

Problem Statement

Learn how to diagnose and fix persistent tire pressure warning in Tesla Model S Plaid. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always allow the vehicle to cool before working on the tires.
•Ensure the vehicle is securely lifted and supported when changing tires.

Symptoms

•Tire pressure warning light illuminated on the dashboard
•Incorrect tire pressure readings displayed on the touchscreen
•Possible decrease in vehicle handling or ride comfort
•Frequent need to add air to tires
•One or more tires may appear visibly under-inflated

Diagnostic Steps

1
Check tire pressures using a reliable tire pressure gauge.
2
Inspect all tires visually for any signs of damage, such as punctures or sidewall bulges.
3
Use the Tesla touchscreen to confirm if any specific tire is showing low pressure readings.
4
Reset the TPMS through the settings menu on the touchscreen.
5
Check for any fault codes related to the TPMS using a compatible OBD-II scanner.
6
Inspect the TPMS sensors for proper functioning or corrosion.

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

•Tire pressure gauge
•Tire-changing machine
•TPMS sensor tool
•OBD-II scanner

Parts Required

•TPMS sensors (if defective)

Related Faults

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Diagnostic Steps

1
Check tire pressures using a reliable tire pressure gauge.
2
Inspect all tires visually for any signs of damage, such as punctures or sidewall bulges.
3
Use the Tesla touchscreen to confirm if any specific tire is showing low pressure readings.
4
Reset the TPMS through the settings menu on the touchscreen.
5
Check for any fault codes related to the TPMS using a compatible OBD-II scanner.
6
Inspect the TPMS sensors for proper functioning or corrosion.

Solution

1. Preparation

Gather tools and components needed for the repair.
Ensure the vehicle is parked on a flat, level surface.
Disconnect the vehicle from any charging source.

2. Inflate Tires

Remove the valve stem caps from each tire.
Inflate each tire to the manufacturer's recommended pressure (found on the driver’s side door jamb).
Recheck tire pressures with a tire pressure gauge to ensure they are accurate.

3. Inspect and Replace TPMS Sensors (if needed)

Remove the tire from the wheel using a tire-changing machine.
Locate the TPMS sensor inside the tire.
Inspect the sensor for damage or corrosion; replace if necessary.
- Tools Required: Tire-changing machine, TPMS sensor tool.
- Parts Required: New TPMS sensors (if defective).
Reinstall the tire on the wheel and balance it.

4. Reset TPMS

Start the vehicle and navigate to the settings menu on the touchscreen.
Select the "Service" option, then choose "TPMS Reset."
Follow the on-screen instructions to complete the reset.

5. Perform System Check

Drive the vehicle for a short distance to allow the system to recalibrate.
Monitor the dashboard for any warning lights or alerts.