why does my Tesla Model S Plaid/Refresh (2021-present) lose charge overnight?

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

506 words

Problem Statement

Discover how to diagnose and fix overnight battery drain issues in Tesla Model S Plaid. Step-by-step guide with symptoms, diagnostics, and solutions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always ensure the vehicle is in a safe, stationary position when making changes to settings or performing diagnostics.

Symptoms

•Significant drop in battery percentage after being parked overnight
•No active processes or applications running during the night
•Notifications of battery drain or low power
•Increased frequency of needing to charge
•Possible misreporting of battery health or range

Diagnostic Steps

1
Check the vehicle's software version for updates and ensure it is running the latest version.
2
Review the energy consumption report in the Tesla app to identify any unusual power usage.
3
Inspect for any scheduled charging or maintenance settings that might be active.
4
Use the Tesla diagnostics feature to check for any alerts or warnings related to the battery system.
5
Monitor the vehicle for any third-party applications or devices that may be drawing power.
6
Verify the status of the key fob and other accessories that might remain active.

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
•Computer for diagnostics (optional)

Parts Required

•Key fob battery (if replacement is necessary)

Related Faults

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Diagnostic Steps

1
Check the vehicle's software version for updates and ensure it is running the latest version.
2
Review the energy consumption report in the Tesla app to identify any unusual power usage.
3
Inspect for any scheduled charging or maintenance settings that might be active.
4
Use the Tesla diagnostics feature to check for any alerts or warnings related to the battery system.
5
Monitor the vehicle for any third-party applications or devices that may be drawing power.
6
Verify the status of the key fob and other accessories that might remain active.

Solution

1. Preparation

Tools Required: Tesla mobile app, computer for diagnostics if necessary.
Ensure the vehicle is parked in a safe location and is powered off.

2. Update Software

Open the Tesla app or vehicle interface.
Navigate to the software update section.
If an update is available, follow the prompts to install the latest software. This may resolve bugs that cause battery drain.

3. Review Energy Settings

Access the energy settings in the vehicle's touchscreen.
Disable any unnecessary features such as "Always Connected," "Sentry Mode," or "Cabin Overheat Protection" if not needed.
Make sure that scheduled charging is not set to activate unnecessarily.

4. Inspect Vehicle Accessories

Check the key fob battery and replace if necessary, as a weak key fob can keep the vehicle awake.
Ensure that any mobile devices or accessories connected via Bluetooth are not causing the vehicle to stay active.

5. Monitor Battery Health

If issues persist, use the Tesla app to monitor battery health over a few days.
If the battery health shows significant degradation, consider contacting Tesla service for a battery inspection.