Cadillac CT6 Tire Pressure Warning Light Stays On

Common Causes for the Tire Pressure Warning Light in Your 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 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 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.

Troubleshooting Tire Pressure Warning Light in a Cadillac CT6

When faced with the tire pressure warning light in your Cadillac CT6, start by checking the air pressure in all tires, including the spare. Low tire pressure is the most common trigger for this warning light, so ensure each tire is inflated to the manufacturer's recommended levels. If the light persists after inflating the tires, inspect the TPMS sensors for any signs of damage or battery depletion, as these components can malfunction and cause the warning to illuminate. If you've recently replaced any tires or wheels, remember that the TPMS sensors may require a reset using a TPMS relearn tool, which is a straightforward process that can often be done at home. If the light continues to stay on despite these checks, consider consulting a detailed guide on resetting the tire pressure light, as this may resolve the issue without needing professional assistance. By following this diagnostic approach, you can effectively troubleshoot and potentially resolve the tire pressure warning light issue in your Cadillac CT6, ensuring your vehicle remains safe and road-ready.

Troubleshooting Tire Pressure Warning Light in a Cadillac CT6

When troubleshooting the tire pressure warning light in your Cadillac CT6, it's crucial to recognize the common problems that could be causing this alert. One of the primary issues is incorrect tire pressure, which can fluctuate due to temperature changes or natural air loss over time. Begin by checking the tire pressure with a reliable gauge to ensure it aligns with the manufacturer's specifications. Another frequent culprit is a malfunctioning Tire Pressure Monitoring System (TPMS) sensor, which may require a reset or battery replacement if the warning light continues to flash. If you've recently changed a tire, the system might need recalibration to recognize the new sensor properly. Additionally, if the system detects low pressure even after you've inflated the tires, driving at higher speeds for a short duration can sometimes help reset the system. If these DIY troubleshooting methods do not resolve the issue, it may indicate a more complex problem that requires professional diagnosis and repair. By understanding these common issues, you can take proactive steps to effectively address the tire pressure warning light in your Cadillac CT6.

Why is the Tire Pressure Warning Light Staying On in a Cadillac CT6?

When the Tire Pressure Warning Light remains illuminated in your Cadillac CT6, it is crucial to address the issue without delay. Ignoring this warning can lead to unsafe driving conditions, as low tire pressure can significantly affect vehicle handling and increase the risk of tire blowouts. Additionally, a malfunctioning tire pressure monitoring system (TPMS) can result in further complications, such as uneven tire wear or damage to the tires themselves. If you've already inflated your tires and the light persists, it may indicate a need to reset the TPMS or that a sensor is faulty or unprogrammed. Regularly checking your tire pressure and ensuring that the TPMS is functioning correctly not only enhances your safety on the road but also prolongs the life of your tires, making it essential to take these warnings seriously.

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