GMC Sierra T1XX (2019-Present) oil change light won't reset, how do I fix it?

GMC Sierra T1XX (2019-Present)

Error Codes

15-30 minutes

Time

medium

Difficulty

medium

Severity

3 min read

424 words

Problem Statement

Learn how to reset the oil change light on your GMC Sierra T1XX (2019-Present) with this step-by-step guide. Ensure proper maintenance tracking.

Affected Component

Electrical

Estimated Time

15-30 minutes

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is in 'Park' and the engine is off while performing the reset process.

Symptoms

•Oil change light remains illuminated
•Message on the dashboard indicating service required
•No change in oil life percentage after oil change
•Potentially incorrect oil life reading (stuck at a certain percentage)

Diagnostic Steps

1
Verify that the oil change was performed correctly and that the correct oil and filter were used.
2
Check the owner’s manual or onboard settings for the proper oil change reset procedure.
3
Use an OBD-II scanner to check for any diagnostic trouble codes that may affect the maintenance system.
4
Inspect the vehicle’s battery voltage to ensure it is sufficient, as low voltage can cause electronic malfunctions.
5
Confirm that the oil change reminder settings were not inadvertently altered.

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
•Owner's manual

Parts Required

•None required for the reset process.

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Diagnostic Steps

1
Verify that the oil change was performed correctly and that the correct oil and filter were used.
2
Check the owner’s manual or onboard settings for the proper oil change reset procedure.
3
Use an OBD-II scanner to check for any diagnostic trouble codes that may affect the maintenance system.
4
Inspect the vehicle’s battery voltage to ensure it is sufficient, as low voltage can cause electronic malfunctions.
5
Confirm that the oil change reminder settings were not inadvertently altered.

Solution

1. Preparation

Ensure the vehicle is parked on a level surface and the engine is off.
Gather necessary tools: OBD-II scanner, owner's manual for reference.

2. Resetting the Oil Change Light

Turn on the Ignition:
- Without starting the engine, turn the ignition key to the "On" position.
Access the Vehicle Settings:
- Use the steering wheel buttons to navigate to the "Settings" menu on the dashboard display.
Select "Oil Life Reset":
- Scroll through the options until you find "Oil Life" or "Maintenance."
- Select the option to reset the oil life.
Confirm Reset:
- Once the reset option is selected, confirm the action when prompted.
- The display should indicate that the oil life has been reset to 100%.
Turn Off Ignition:
- After resetting, turn off the ignition and then start the engine to check if the oil change light is off.