2021 Cadillac XT5 Tire Pressure Warning Light Stays On

Resolve Tire Pressure Warning Light in 2021 Cadillac XT5: 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 2021 Cadillac XT5 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 2021 Cadillac XT5 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.

Wheels offer very few symptoms, but these symptoms should never be ignored. Visible cracks on the wheels may appear, especially after hitting a large bump, Most often, this will also be accompanied by loss of air from the tire on that wheel. Also, vibration in the steering wheel is very common when the tire is out of balance, and improper wheel nuts or bolts can cause creaking and popping noises to develop. Again, there are very few symptoms, but they should not be ignored.

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 on my 2021 Cadillac XT5?

When diagnosing the tire pressure warning light issue on your 2021 Cadillac XT5, it's essential to adopt a systematic approach that begins with the simplest solutions. Start by checking the tire pressure in all four tires using a reliable tire pressure gauge, ensuring they are inflated to the levels recommended in your owner's manual. This initial step can often resolve the warning light if the pressure is low. Next, inspect the tires for any visible damage, such as punctures or bulges, which could indicate a more serious problem. If the tires appear to be in good condition, proceed to reset the tire pressure monitoring system as outlined in your manual; this can recalibrate the sensors and potentially turn off the warning light. Additionally, examine the valve stems for any signs of leaks or damage, as faulty stems can also trigger pressure issues. If the warning light remains illuminated after these checks, it may be time to consult a mechanic or dealership for a comprehensive diagnosis, as there could be underlying issues with the tire pressure monitoring system that require professional attention. By following this methodical approach, you can effectively troubleshoot the tire pressure warning light and ensure your vehicle's safety on the road.

What are the common causes for the tire pressure warning light to remain on in a 2021 Cadillac XT5?

When the tire pressure warning light remains illuminated in your 2021 Cadillac XT5, it’s crucial to understand the potential causes to effectively troubleshoot the problem. One of the primary reasons could be low tire pressure, which is easily checked with a tire pressure gauge. Ensure all tires are inflated to the manufacturer’s recommended levels, as even a slight deficiency can trigger the warning light. If the pressure is adequate, consider the possibility of a faulty tire pressure sensor; these sensors can malfunction and fail to provide accurate readings. Additionally, the sensor batteries may need replacement, as they can deplete over time, leading to persistent warning lights. Physical damage to the sensors, often caused by road hazards, can also result in inaccurate readings. If you suspect the sensors are functioning correctly, the TPMS may require recalibration to reset the system and clear the warning light. Lastly, inspect the electrical connections within the TPMS for any issues, as wiring problems can also contribute to the warning light staying on. By systematically addressing these common issues, you can effectively diagnose and resolve the tire pressure warning light concern in your Cadillac XT5.

What should I do if the tire pressure warning light on my 2021 Cadillac XT5 stays on?

When the tire pressure warning light on your 2021 Cadillac XT5 stays illuminated, it is essential to act quickly to ensure your safety and prevent further complications. Neglecting this warning can lead to dangerous driving conditions, including decreased traction and increased tire wear, which may result in expensive repairs down the line. Begin by checking the tire pressure of all four tires using a reliable gauge, making sure they are inflated to the levels specified in your owner's manual. If you discover any underinflated tires, inflate them to the correct pressure; this straightforward action can often reset the tire pressure monitoring system and extinguish the warning light. Additionally, carefully inspect your tires for any signs of damage, such as punctures or leaks, as these issues can pose serious safety risks and should be addressed immediately. If the warning light remains on after adjusting the tire pressure and checking for damage, refer to your owner's manual for guidance on resetting the system. However, if the light continues to persist, it may indicate a more significant problem with the tire pressure monitoring system itself, which would require the expertise of a qualified mechanic or dealership for proper diagnosis and repair. By taking these proactive measures, you not only enhance your safety on the road but also contribute to the overall health and longevity of your vehicle.

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