what to do when my GMC Sierra T1XX (2019-Present) tire pressure monitoring system shows errors

GMC Sierra T1XX (2019-Present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

582 words

Problem Statement

Learn how to diagnose and fix TPMS errors in GMC Sierra T1XX (2019-Present). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always wear safety glasses when working with tires
•Ensure the vehicle is secure and on a flat surface before lifting it

Symptoms

•TPMS warning light illuminated on the dashboard
•Inaccurate tire pressure readings displayed
•Error messages related to tire pressure on the infotainment screen
•Possible decrease in fuel efficiency
•Uneven tire wear noted during inspection

Diagnostic Steps

1
Scan for error codes using OBD-II scanner
2
Inspect tire pressure manually using a reliable tire pressure gauge
3
Inspect each tire for visible damage to the TPMS sensors or valve stems
4
Use a TPMS tool to verify that each sensor is transmitting a signal correctly
5
Check the battery condition of each TPMS sensor for low voltage
6
Examine tires for punctures, leaks, or physical issues that may affect pressure

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
•TPMS reset tool
•Tire pressure gauge
•Air compressor
•Tire iron
•Valve core removal tool

Parts Required

•TPMS sensors (if replacement is necessary)
•Tire valve stems (if damaged)

Related Faults

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Diagnostic Steps

1
Scan for error codes using OBD-II scanner
2
Inspect tire pressure manually using a reliable tire pressure gauge
3
Inspect each tire for visible damage to the TPMS sensors or valve stems
4
Use a TPMS tool to verify that each sensor is transmitting a signal correctly
5
Check the battery condition of each TPMS sensor for low voltage
6
Examine tires for punctures, leaks, or physical issues that may affect pressure

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is off.

2. Reset TPMS System

Tools Required: OBD-II scanner or TPMS reset tool.
Instructions:
1. Start the vehicle and allow it to idle.
2. Connect the OBD-II scanner or TPMS reset tool to the vehicle's diagnostic port.
3. Follow the tool's instruction to reset the TPMS system.
4. Turn off the ignition and disconnect the tool.

3. Replace Faulty Sensors

Tools Required: Tire iron, TPMS sensor tool, valve core removal tool.
Instructions:
1. Loosen the lug nuts and remove the affected tire.
2. Use the valve core removal tool to remove the old TPMS sensor from the tire.
3. Install the new TPMS sensor, ensuring it is seated properly.
4. Reinstall the tire, tightening the lug nuts to the manufacturer's torque specification (usually around 80-100 ft-lbs).

4. Inflate Tires to Correct Pressure

Tools Required: Tire pressure gauge, air compressor.
Instructions:
1. Inflate each tire to the recommended pressure specified on the driver’s door jamb label.
2. Recheck the tire pressure using the gauge after inflation.

5. Final System Check

Instructions:
1. Start the vehicle and monitor the TPMS warning light.
2. Ensure that the light turns off after a few minutes of driving, indicating successful reset and proper sensor function.