how to fix GMC Sierra T1XX (2019-Present) tire pressure warning light

GMC Sierra T1XX (2019-Present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

533 words

Problem Statement

Learn how to diagnose and fix the tire pressure warning light on 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 ensure the vehicle is on a stable surface when using a jack and jack stands.
•Wear safety goggles when working around tires and wheels.

Symptoms

•Tire pressure warning light illuminated on the dashboard
•Possible decrease in vehicle handling performance
•Uneven tire wear may be observed
•Rough ride quality or vibrations
•Potential decrease in fuel efficiency

Diagnostic Steps

1
Verify that tire pressures are checked using a reliable tire pressure gauge.
2
Inspect each tire for visible damage, punctures, or foreign objects.
3
Check the tire pressure monitoring system (TPMS) sensor status using an OBD-II scanner.
4
Look for any stored error codes related to the TPMS in the vehicle's computer system.
5
Inspect the condition of the TPMS sensors for corrosion or damage during a visual inspection.
6
Confirm that the spare tire (if equipped with a TPMS sensor) is properly inflated and not triggering the warning.

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

•Tire pressure gauge
•OBD-II scanner
•Jack
•Jack stands
•Wrench set

Parts Required

•TPMS sensors (if replacement is necessary)

Related Faults

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Diagnostic Steps

1
Verify that tire pressures are checked using a reliable tire pressure gauge.
2
Inspect each tire for visible damage, punctures, or foreign objects.
3
Check the tire pressure monitoring system (TPMS) sensor status using an OBD-II scanner.
4
Look for any stored error codes related to the TPMS in the vehicle's computer system.
5
Inspect the condition of the TPMS sensors for corrosion or damage during a visual inspection.
6
Confirm that the spare tire (if equipped with a TPMS sensor) is properly inflated and not triggering the warning.

Solution

1. Preparation

Gather tools and equipment: tire pressure gauge, OBD-II scanner, jack, jack stands, and a wrench set.
Ensure the vehicle is parked on a level surface and the engine is off.

2. Check and Adjust Tire Pressures

Remove the valve caps from each tire.
Use the tire pressure gauge to measure the pressure of each tire.
Refer to the vehicle's door jamb sticker for the recommended tire pressure specifications.
Inflate or deflate each tire as necessary to achieve the correct pressure.
Reinstall the valve caps securely after adjustments.

3. Reset TPMS

Start the vehicle and allow it to run for a few minutes.
Use the OBD-II scanner to access the TPMS settings.
Follow the prompts to reset the TPMS system, if applicable.
Alternatively, if no scanner is available, drive the vehicle at speeds above 50 mph for approximately 10 minutes to allow the system to recalibrate.

4. Replace TPMS Sensors (if required)

If a faulty sensor is identified, raise the vehicle using a jack and secure it with jack stands.
Remove the wheel where the faulty TPMS sensor is located.
Unscrew the valve stem nut and replace the TPMS sensor with a new one.
Reinstall the wheel and lower the vehicle back to the ground.