GMC Sierra: How to Reset The Tire Pressure System

If the Tire Pressure Monitoring System in your GMC Sierra is not working properly, you may need to reset the system. Follow one of the options below to re-initialize the TPMS and get the warning light turned off.

The light indicator is a notification to warn you of significantly low air pressure or high-pressure loss in your tires and is NOT to be ignored, as low pressure affects the vehicles overall performance such as: 

• How the vehicle drives. 
• Increases the need for fuel. 
• Tire failure. 

First, Check the Recommended Air Levels Needed: 

• Refer to the Manufacturer’s Sticker located on the inside of the Driver’s door.  
• Fill each tire to the recommended PSI/air pressure. 

NOTE: If you are unable to Reset the Tire Pressure Warning Light on the first try, REPEAT the steps. If you are still unsuccessful, contact the dealership for assistance or consult your vehicle user’s manual.

Option 1: Via the Keyless Remote

1. With your vehicle in the ON position without starting the engine. 
2. Press the LOCK and UNLOCK buttons on your vehicle’s Keyless Remote/ Key Fob at the same time. The horn will blow TWICE to signify this was done correctly.
3. Using a writing PEN or any device of your choice, RELEASE some air out of the DRIVER’s side tire FIRST until the horn BEEPS. Be patient as this could take up to 30 seconds for each tire.  
4. Do the exact same for ALL of the tires in this order- Driver, Front Passenger, Right Rear, then Left Rear.   
5. Refill each tire back to the recommended PSI Levels.

You are all SET! The warning light should be OFF. 

However, if not, keep in mind, after tires are inflated, the outdoor temperature affects how fast the air in the tires will adjust to the proper temperature, this could take minutes, a day, 2 or 3, simply be patient and give the tires time to adjust. In addition, if the tire pressure warning light stays illuminated past a week, you will need to have your vehicle serviced as there could possibly be a sensor issue or a tire puncture. 

Option 2: Via the Knob Control

With your vehicle in the ON position without starting the engine. 

1. Turn the knob from AUTO to OFF really Fast three times. The horn will blow ONCE to signify this was done correctly.
2. Using a writing PEN or any device of your choice, RELEASE some air out of the DRIVER’s side tire FIRST until the horn BEEPS. Be patient as this could take up to 30 seconds for each tire.  
3. Do the exact same for ALL of the tires in this order- Driver, Front Passenger, Right Rear, then Left Rear.   
4. Refill each tire back to the recommended PSI Levels.

Option 3: Reset Via the TPMS Reset Button

Some GMC Sierra models have a dedicated TPMS reset button located beneath the steering wheel, near the hood release lever or the OBD-II diagnostic port. If your Sierra has this button, you can use this simpler method:

1. Make sure all tires are inflated to the correct PSI.
2. Turn the ignition to the ON position without starting the engine.
3. Locate the TPMS reset button under the steering wheel. It may be a small, recessed button labeled “TPMS Reset” or “Tire Reset.”
4. Press and hold the TPMS reset button until the TPMS warning light on the dashboard blinks three times, then release it.
5. Start the engine and drive for at least 20 minutes at speeds above 25 mph to allow the system to fully recalibrate.

After driving, turn the vehicle off and restart it. If the TPMS light stays off, the reset was successful.

What to Do if the Light Stays On

After inflating and resetting your tires, keep in mind that outdoor temperature affects how quickly the air inside your tires adjusts to the proper levels. This process could take anywhere from a few minutes to two or three days, so simply be patient and give the tires time to stabilize.

However, if the TPMS warning light remains on for more than a week after a reset, you should have your vehicle inspected by a professional. There are a few possible causes worth investigating:

• Faulty Sensor: TPMS sensors are battery-powered and typically last between 5 and 10 years depending on driving conditions and climate. A dead sensor battery is one of the most common reasons the light stays on after a reset.
• Tire Puncture or Slow Leak: A nail or other debris in the tire can cause a slow leak that keeps the pressure below the threshold.
• Sensor Damage: Hitting potholes or curbs can physically damage the TPMS sensor inside the wheel.
• Spare Tire: Some GMC Sierra models also have a TPMS sensor in the spare tire. If the spare’s pressure is low, the warning light may stay illuminated.

You are all SET! The warning light should be OFF.

However, if not, keep in mind, after tires are inflated, the outdoor temperature affects how fast the air in the tires will adjust to the proper temperature, this could take minutes, a day, 2 or 3, simply be patient and give the tires time to adjust. In addition, if the tire pressure warning light stays illuminated past a week, you will need to have your vehicle serviced as there could possibly be a sensor issue or a tire puncture. 

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