how to fix TPMS errors in GMC Sierra T1XX (2019-Present)

GMC Sierra T1XX (2019-Present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

580 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 on tires.
•Ensure the vehicle is securely lifted and stable if jacking up to remove tires.

Symptoms

•TPMS warning light illuminated on the dashboard
•Inaccurate tire pressure readings
•Warning messages related to tire pressure displayed on the infotainment screen
•Sudden loss of pressure alerts for one or more tires
•Inability to reset the TPMS system

Diagnostic Steps

1
Scan the vehicle's OBD-II system for any TPMS-related error codes using an OBD-II scanner.
2
Inspect each tire for visible damage or leaks that may affect pressure readings.
3
Check the tire pressures with a manual tire pressure gauge to confirm accuracy.
4
Verify the TPMS sensor battery status to ensure they are functioning properly.
5
Inspect the TPMS antenna and wiring for any signs of damage or corrosion.
6
Attempt to reset the TPMS system through the vehicle settings or using the TPMS reset button.

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
•Socket set
•Torque wrench
•TPMS reset tool

Parts Required

•TPMS sensors
•Tire valve stems

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Diagnostic Steps

1
Scan the vehicle's OBD-II system for any TPMS-related error codes using an OBD-II scanner.
2
Inspect each tire for visible damage or leaks that may affect pressure readings.
3
Check the tire pressures with a manual tire pressure gauge to confirm accuracy.
4
Verify the TPMS sensor battery status to ensure they are functioning properly.
5
Inspect the TPMS antenna and wiring for any signs of damage or corrosion.
6
Attempt to reset the TPMS system through the vehicle settings or using the TPMS reset button.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is off.
Tools Required:
- OBD-II scanner
- Tire pressure gauge
- Socket set
- Torque wrench
- TPMS reset tool (if applicable)

2. Inspect and Repair Sensors

Sub-steps:
1. Remove the tire if needed to access the TPMS sensor.
2. Inspect the sensor for physical damage or corrosion.
3. If damaged, replace the TPMS sensor. Ensure you have the correct replacement sensor compatible with the GMC Sierra T1XX.
4. If the sensor is intact, verify the battery life and replace the sensor if the battery is low.

3. Adjust Tire Pressures

Sub-steps:
1. Use a manual tire pressure gauge to check the pressure of all four tires.
2. Inflate or deflate tires to match the manufacturer's recommended pressure (found on the driver's door jamb).
3. Recheck tire pressures after adjustments to ensure accuracy.

4. Reset TPMS

Sub-steps:
1. Turn the ignition to the "ON" position without starting the engine.
2. Press the accelerator pedal three times within 10 seconds to activate the TPMS reset mode.
3. Use the OBD-II scanner or TPMS reset tool to clear any existing error codes.
4. Verify that the warning light has turned off after resetting.

5. Test the System

Sub-steps:
1. Drive the vehicle for approximately 10 minutes at speeds above 25 mph to allow the TPMS to reinitialize.
2. Monitor the dashboard for any reoccurrence of the TPMS warning light.