2017 Cadillac CT6 Tire Pressure Warning Light Stays On

Common Causes for the Tire Pressure Warning Light in Your 2017 Cadillac CT6 and How to Resolve Them

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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 2017 Cadillac CT6 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 2017 Cadillac CT6 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 on my 2017 Cadillac CT6?

To effectively diagnose the tire pressure warning light issue on your 2017 Cadillac CT6, begin with a thorough check of the tire pressure in all four tires using a reliable tire pressure gauge. Ensure that each tire is inflated to the recommended levels outlined in your vehicle's manual, as improper inflation is a common cause of warning lights. Next, visually inspect each tire for any signs of damage, such as punctures, cuts, or bulges, which could indicate a loss of pressure. If the tire pressure appears normal and there are no visible issues, consider resetting the tire pressure monitoring system (TPMS) as it may require recalibration. Refer to your vehicle's manual for specific instructions on how to perform this reset. If the warning light remains illuminated, it may be indicative of faulty tire pressure sensors, which could necessitate replacement or recalibration. Should these steps not resolve the issue, it is advisable to consult a professional mechanic or dealership for a comprehensive diagnosis and repair, ensuring your vehicle's safety and performance.

What could be causing the tire pressure warning light to stay on in a 2017 Cadillac CT6?

When the tire pressure warning light remains illuminated in a 2017 Cadillac CT6, it can be attributed to several common problems that DIYers can investigate. The most frequent culprit is low tire pressure, which can easily be checked using a tire pressure gauge. Ensuring that all tires are inflated to the manufacturer's recommended levels is crucial for both safety and performance. If the tire pressure is adequate, the issue may lie with a faulty tire pressure sensor, which could be malfunctioning or require a battery replacement. Over time, these sensors can wear out, leading to inaccurate readings. Additionally, if the system has recently been serviced or tires have been changed, recalibrating the tire pressure monitoring system may be necessary to restore proper functionality. If these steps do not resolve the issue, it may be time to consult a professional mechanic for a more in-depth diagnosis. By understanding these common problems, DIY enthusiasts can take proactive steps to address the tire pressure warning light issue effectively.

How urgent is it to address the tire pressure warning light on a 2017 Cadillac CT6 that stays on?

Addressing the tire pressure warning light on a 2017 Cadillac CT6 is not just a matter of convenience; it is a critical safety concern that requires immediate attention. When this warning light remains illuminated, it signals that one or more tires may be underinflated, which can severely compromise the vehicle's handling and braking capabilities. This poses a heightened risk of accidents, particularly in emergency situations where quick response is essential. Additionally, driving on underinflated tires can lead to uneven wear, resulting in the premature need for tire replacements, which can be costly. Furthermore, low tire pressure negatively impacts fuel efficiency, leading to increased fuel expenses over time. The risk of tire damage, including potential blowouts, is another serious consequence of ignoring this warning. Therefore, it is crucial for DIY enthusiasts to promptly check tire pressure, inflate tires to the recommended levels, and inspect for any leaks or punctures. Regular maintenance of tire pressure not only ensures safe driving but also enhances the longevity and performance of your vehicle.

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