2015 GMC Acadia Tire Pressure Warning Light Stays On

Resolve Tire Pressure Warning Light in 2015 GMC Acadia

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Reviewed by
Aisha
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 2015 GMC Acadia 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 2015 GMC Acadia 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 2015 GMC Acadia?

To effectively diagnose the tire pressure warning light issue in your 2015 GMC Acadia, start with the simplest checks before moving on to more complex diagnostics. Begin by visually inspecting each tire for any signs of leaks or damage, as a flat or leaking tire is often the most straightforward cause of the warning light. If the tires appear to be in good condition, check the tire pressure using a reliable gauge to ensure they are inflated to the recommended levels. Next, familiarize yourself with the type of Tire Pressure Monitoring System (TPMS) your vehicle employs; if it’s a direct system, you may be able to reset the sensors easily by following the manufacturer’s instructions or pressing the reset button on the dashboard. If the warning light persists, consider using an OBD2 scanner to retrieve any diagnostic trouble codes that could indicate a malfunctioning sensor or other issues within the TPMS. Pay special attention to a blinking tire pressure light, as this often signifies a more urgent problem, such as significantly low pressure or a sensor failure. If you’ve addressed the tire pressure and the light remains illuminated, it may be necessary to reset the TPMS system with a scanner or check for unprogrammed sensors. By following this methodical approach, you can effectively identify and resolve the issue, ensuring your vehicle remains safe and performs optimally.

What could be causing the tire pressure warning light to stay on in a 2015 GMC Acadia?

When the tire pressure warning light remains illuminated in a 2015 GMC Acadia, it can be frustrating for any DIYer. One of the primary culprits is low tire pressure, which can easily be checked with a tire pressure gauge. If the pressure is below the manufacturer's recommended levels, simply inflating the tires may resolve the issue. However, if the pressure is adequate, the problem could lie with the tire pressure monitoring system (TPMS) itself. A malfunctioning or damaged sensor is a common reason for the warning light to stay on, and inspecting each sensor for visible damage or corrosion can help identify the issue. Additionally, a faulty TPMS sensor may need replacement, especially if the light persists despite correct tire pressure. Another factor to consider is the battery life of the sensors; if they are depleted, the sensors will not function properly, leading to the warning light being triggered. Lastly, if you encounter a "Service Tire Monitor System" message, it indicates a deeper issue within the TPMS that may require professional diagnostics. By understanding these common problems, you can take the necessary steps to troubleshoot and potentially resolve the tire pressure warning light issue in your GMC Acadia.

How urgent is it to address the tire pressure warning light on a 2015 GMC Acadia that stays on?

Addressing the tire pressure warning light on a 2015 GMC Acadia that remains illuminated is of utmost urgency. This warning indicates that one or more tires may have significantly low air pressure, which can lead to serious safety hazards such as tire blowouts or loss of vehicle control. Ignoring this warning not only increases the risk of tire failure but can also result in overheating, which may cause further damage to the tires and the vehicle's suspension system. Additionally, driving with improper tire pressure can negatively impact fuel efficiency and overall vehicle performance. Therefore, it is essential to check the tire pressure as soon as the warning light appears, ensuring that all tires are inflated to the manufacturer's recommended levels. Taking immediate action not only safeguards your safety but also helps maintain the longevity and reliability of your GMC Acadia.

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