2019 Cadillac XT5 Tire Pressure Warning Light Stays On

Resolve Tire Pressure Warning Light in 2019 Cadillac XT5: Causes and Solutions

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Reviewed by
Devin Cabugcal
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 2019 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 2019 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 in my 2019 Cadillac XT5?

To effectively diagnose the tire pressure warning light issue in your 2019 Cadillac XT5, begin with a thorough check of the tire pressure in all four tires using a reliable tire pressure gauge. It's essential to ensure that the pressure aligns with the recommended levels found in your owner's manual, as incorrect pressure can trigger the warning light. Next, inspect each tire for visible damage, such as punctures, cuts, or bulges, and look for any foreign objects that may be lodged in the treads, as these can lead to air leaks. If the tire pressure is correct and the tires appear undamaged, consider resetting the tire pressure monitoring system (TPMS), as it may require recalibration. Instructions for this reset can typically be found in your owner's manual. However, if the warning light remains illuminated despite these efforts, it may be time to consult a professional mechanic or dealership for a more in-depth diagnosis and repair. By following this systematic approach, you can efficiently address the tire pressure warning light issue and ensure your vehicle's safety on the road.

What could be causing the tire pressure warning light to stay on in a 2019 Cadillac XT5?

When the tire pressure warning light stays on in your 2019 Cadillac XT5, it’s essential to identify the underlying issues to ensure your safety and vehicle performance. The most common reason for this warning light is low tire pressure, which can be easily checked using a tire pressure gauge. If you find that the pressure is below the recommended levels, inflating the tires to the correct specifications should resolve the issue. However, if the tire pressure is adequate, the problem may stem from a faulty tire pressure sensor that could require replacement. Additionally, the sensors might need recalibration to ensure accurate readings, a process that is typically best performed by a professional mechanic. It's also worth considering the possibility of electrical faults within the tire pressure monitoring system, which may necessitate diagnostic testing to identify the specific issue. Lastly, interference from electronic devices or physical obstructions near the sensors can disrupt their functionality, causing the warning light to remain illuminated. By methodically addressing these potential causes, you can effectively troubleshoot and resolve the tire pressure warning light issue in your Cadillac XT5.

How urgent is it to address the tire pressure warning light that stays on in a 2019 Cadillac XT5?

Addressing the tire pressure warning light that remains illuminated in your 2019 Cadillac XT5 is of utmost importance due to the significant safety risks it poses. Low tire pressure can severely compromise your vehicle's handling and braking capabilities, increasing the likelihood of accidents. Additionally, driving on underinflated tires can lead to uneven wear, drastically shortening their lifespan and potentially resulting in a dangerous blowout while on the road. Beyond safety concerns, neglecting this warning can also impact your fuel efficiency, as underinflated tires require more energy to roll, leading to increased fuel consumption and higher costs at the pump. Furthermore, the Tire Pressure Monitoring System (TPMS) is designed to alert you to low tire pressure, and ignoring this warning could indicate a malfunction within the system itself, which may require professional attention. Therefore, it is crucial to promptly investigate and resolve any issues related to the tire pressure warning light to ensure your safety, protect your investment in tires, and maintain optimal vehicle performance.

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