2020 GMC Savana 3500 Tire Pressure Warning Light Stays On

Resolve Tire Pressure Warning Light in 2020 GMC Savana 3500: Causes and Solutions

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Reviewed by
Bo Fader
Written by RepairPal Car Genius
Updated January 14, 2025
0%
40% chance it's the
Tire Leaking Air
0%
30% chance it's the
Wheel Leaking Air
0%
15% chance it's the
Tire Pressure Monitoring System
0%
15% chance it's
Something else
The most common reasons a 2020 GMC Savana 3500 tire pressure warning light stays on are a leaking tire, a wheel that no longer holds air, or a faulty tire pressure monitoring system.
  • Tire Leaking Air: A puncture, valve stem issue, or rim damage can cause a tire to leak air, leading to loss of pressure.
  • Wheel Leaking Air: A puncture or damage to the tire or rim can cause air to leak, resulting in a loss of tire pressure.
  • Tire Pressure Monitoring System: A malfunctioning tire pressure monitoring system can be caused by faulty sensors or a dead battery in the sensor units.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2020 GMC Savana 3500 tire pressure warning light stays on?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

When a tire pressure monitoring sensor fails, the tire pressure monitoring system control module will recognize a loss in communication and turn on the warning lamp which indicates the failure. This is most often the case. However, the tire pressure monitoring sensor may also fail by reporting incorrect tire pressures. This could cause a flat tire to go unrecognized, or a properly inflated tire to signal a low or high tire pressure warning.

When a relearn is needed, for any reason, the TPMS warning light will illuminate, and many vehicles will display a message relating to the TPMS system being inoperative or loosing communication. It is important to keep a watchful eye on tire pressures when this system is having issues because there is no warning available for underinflation or overinflation of the tires.

The only symptoms requiring diagnosis for the tire pressure monitoring system warning lamp is if the warning lamp has illuminated while the tires have correct air pressure, or if the air pressure for the tires is out of specification and the warning lamp is off. This is because the overwhelming majority of cases where the TPMS lamp illuminates is due to the change in ambient temperature.

What steps should I take to diagnose the tire pressure warning light issue in my 2020 GMC Savana 3500?

To effectively diagnose the tire pressure warning light issue in your 2020 GMC Savana 3500, begin with a thorough check of the tire pressure in all tires, including the spare. Utilizing a tire pressure gauge, ensure that each tire is inflated to the specifications outlined in your owner's manual, as improper pressure is a common trigger for the warning light. Next, inspect the tires for any visible damage such as punctures, cuts, or bulges, as these can lead to air loss and activate the warning system. If the tire pressure is correct and no damage is found, consult your owner's manual for instructions on how to manually reset the tire pressure monitoring system, as this can sometimes resolve the issue. Additionally, consider driving the vehicle for a short distance, as this may allow the system to recalibrate and turn off the warning light. If the light remains illuminated despite these efforts, it may indicate a more serious underlying problem, and visiting a mechanic or dealership for professional diagnosis and repair would be advisable. By following this diagnostic approach, you can systematically address the tire pressure warning light issue and ensure your vehicle's safety and performance.

What could cause the tire pressure warning light to remain on in a 2020 GMC Savana 3500?

When the tire pressure warning light remains illuminated in a 2020 GMC Savana 3500, it can be attributed to several common problems that DIY enthusiasts can investigate. First, check the tire pressure in all tires, as low pressure is the most frequent culprit. Ensure that each tire is inflated to the manufacturer's recommended levels, as fluctuations due to temperature changes or slow leaks can easily trigger the warning light. If the tire pressure is adequate, consider inspecting the tire pressure sensors; a faulty sensor may not relay accurate information, causing the light to stay on. Additionally, if the sensors have not been calibrated recently, recalibrating them could resolve the issue. Electrical problems, such as damaged wiring or blown fuses, can also interfere with the tire pressure monitoring system, so a thorough inspection of the vehicle's electrical components is advisable. Lastly, if all else checks out, there may be a malfunction within the tire pressure monitoring system itself, which might require professional diagnosis. Addressing these potential issues promptly is crucial for maintaining vehicle safety and performance.

What immediate actions should be taken if the tire pressure warning light remains on in a 2020 GMC Savana 3500?

When the tire pressure warning light remains illuminated in your 2020 GMC Savana 3500, it is crucial to act swiftly to avoid potential safety hazards and costly repairs. Start by checking the tire pressure in all tires with a reliable gauge, as improper inflation can lead to decreased handling and increased tire wear. If you find any tires under-inflated or over-inflated, adjust them to the recommended levels found in your vehicle's manual. Next, conduct a thorough visual inspection of each tire for any signs of damage, such as punctures or bulges, which could compromise your safety on the road. If the tire pressure is correct and no damage is evident, attempt to reset the tire pressure monitoring system following the manufacturer's guidelines. However, if the warning light persists despite these efforts, it is essential to seek professional assistance. Ignoring this warning could lead to more severe issues, including tire blowouts or alignment problems, making timely intervention not just advisable but necessary for your safety and the longevity of your vehicle.

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