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how to reset the maintenance light on my GMC Sierra T1XX (2019-Present) - GMC Sierra
Home/Cars/GMC/Sierra/T1XX (2019-Present)/how to reset the maintenance light on my GMC Sierra T1XX (2019-Present)

how to reset the maintenance light on my GMC Sierra T1XX (2019-Present)

GMC Sierra T1XX (2019-Present)

Error Codes
5-10 minutes
Time
easy
Difficulty
low
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
2 min read
360 words

Problem Statement

Learn how to reset the maintenance light on your GMC Sierra T1XX (2019-Present) with this step-by-step guide. Quick and easy instructions included.

Affected Component
Electrical
Estimated Time
5-10 minutes

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Ensure the vehicle is in Park or Neutral and on a flat surface while performing the reset.

Symptoms

  • •Maintenance light illuminated on the dashboard
  • •No engine performance issues
  • •No other warning lights active

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

Solution

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

  • •None

Parts Required

  • •None

Additional Information

Affected Component
Electrical
Estimated Time
5-10 minutes
Difficulty
easy
Severity
low
Tools Required
1 item
Parts Required
1 item

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Solution
1. Preparation
  • Gather necessary tools:
    • None required for resetting the maintenance light.
  • Make sure the vehicle is parked on a level surface and the engine is off.
2. Resetting the Maintenance Light

  1. Ignition Positioning

    • Ensure the ignition is in the OFF position.

  2. Pedal Positioning

    • Press and hold the accelerator pedal fully down.

  3. Turn Ignition ON

    • Turn the ignition key to the ON position without starting the engine. The dashboard lights will illuminate.

  4. Hold Accelerator

    • Maintain pressure on the accelerator pedal for about 10 seconds until the maintenance light begins to blink.

  5. Turn Ignition OFF

    • Release the accelerator pedal and turn the ignition back to the OFF position.

  6. Start Engine

    • Start the engine to confirm the maintenance light has been successfully reset.