why does my Tesla Model S Plaid/Refresh (2021-present) lose power when hitting bumps?

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

534 words

Problem Statement

Learn how to diagnose and fix power loss when hitting bumps in Tesla Model S Plaid. 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 battery before working on electrical systems
•Allow the vehicle to fully power down before beginning any repairs

Symptoms

•Loss of power or acceleration momentarily when hitting bumps
•Check battery status warning on the display
•Unusual sounds from the suspension or electrical system
•Intermittent power delivery during driving
•Possible warning messages related to traction control or stability

Diagnostic Steps

1
Scan for error codes using OBD-II scanner
2
Inspect battery connections for looseness, corrosion, or damage
3
Check suspension components for wear or damage
4
Measure voltage at the battery terminals and check for voltage drops
5
Ensure vehicle software is up to date

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
•Socket set
•Torque wrench
•Jack
•Jack stands

Parts Required

•Replacement suspension components (if worn)
•Battery terminal cleaning kit (if corrosion is present)

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Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the parking brake is engaged.
Disconnect the battery before starting work on electrical systems.

2. Inspect and Tighten Battery Connections

Tools Required: Socket set, torque wrench
Remove the access panel to the battery terminal area.
Inspect the positive and negative battery terminals for tightness and corrosion.
Clean the terminals if necessary and ensure they are securely tightened to manufacturer specifications (typically around 12-15 Nm).
Reconnect the battery terminals.

3. Examine Suspension Components

Tools Required: Jack, jack stands, socket set
Lift the vehicle using a jack and secure it with jack stands.
Visually inspect shock absorbers for signs of leakage or damage.
Check control arm bushings and ball joints for play or wear.
Replace any worn components with OEM parts if necessary.

4. Test and Reprogram Power Distribution Module

Tools Required: OBD-II scanner
Connect the OBD-II scanner and check power distribution module settings.
If necessary, reprogram or reset the module per manufacturer guidelines.

5. Update Vehicle Software

Connect the vehicle to Wi-Fi.
Access the software update menu in the vehicle settings and install any available updates.