FAULTBASE
Error CodesASKCars
© 2026 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
my Tesla Model 3 Original (2017-2023) has a yellow triangle warning light what does it mean - Tesla Model 3
Home/Cars/Tesla/Model 3/Highland (2024-present)/my Tesla Model 3 Original (2017-2023) has a yellow triangle warning light what does it mean

my Tesla Model 3 Original (2017-2023) has a yellow triangle warning light what does it mean

Tesla Model 3 Highland (2024-present)

Error Codes
1-2 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
503 words

Problem Statement

Learn how to diagnose and fix the yellow triangle warning light issue in Tesla Model 3 (2017-2023). Step-by-step guide with diagnostic procedures and solutions.

Affected Component
Electrical
Estimated Time
1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Ensure the vehicle is in park and turned off before performing any inspections or adjustments.

Symptoms

  • •Yellow triangle warning light illuminated on the dashboard
  • •Reduced performance or power
  • •Possible alerts or messages on the touchscreen
  • •Activation of other warning lights simultaneously
  • •Unresponsive features or controls related to safety systems

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

Parts Required

  • •None required unless specific components are diagnosed as faulty.

Additional Information

Affected Component
Electrical
Estimated Time
1-2 hours
Difficulty
medium
Severity
medium
Tools Required
2 items
Parts Required
1 item

Related Faults

Loading...

Share this solution

Comments

Sign in to share your thoughts

Sign In

No comments yet

Be the first to share your thoughts

Back to Generation
Solution
1. Preparation
  • Ensure the vehicle is parked on a level surface and turned off.
  • Gather tools: OBD-II scanner (if needed) and a tire pressure gauge.
2. Address Diagnostic Trouble Codes
  • If applicable, connect an OBD-II scanner to retrieve and document any error codes.
  • Refer to Tesla's service manual or online resources to interpret the error codes.
3. Inspect and Adjust Tire Pressure
  • Use a tire pressure gauge to check the tire pressures.
  • Inflate any low tires to the recommended PSI listed on the door jamb sticker.
  • Reset the TPMS by navigating to the settings menu and selecting the tire pressure reset option.
4. Check Battery and Charging System
  • Inspect the battery health through the vehicle settings.
  • Ensure the vehicle is fully charged; plug it into a charger if necessary.
  • If the battery shows signs of degradation, consult with Tesla service for potential replacement.
5. Verify Autopilot and Safety Features
  • Ensure that all safety features are enabled in the settings.
  • Perform a soft reboot of the infotainment system by pressing the two scroll wheels on the steering wheel until the screen resets.