Cadillac CTS Tire Pressure Warning Light Stays On

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

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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 Cadillac CTS 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 CTS 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.

Troubleshooting Tire Pressure Warning Light in a Cadillac CTS

When faced with a tire pressure warning light in your Cadillac CTS, the first step is to check the air pressure in all tires, ensuring they are inflated to the manufacturer's recommended levels. Low tire pressure is a common trigger for this warning light, so adding air to any under-inflated tires can often resolve the issue. If the light remains illuminated after adjusting the tire pressure, the next step is to inspect the battery in the tire pressure monitoring system (TPMS) sensors, as a depleted battery can prevent proper function. Additionally, examine the TPMS receiver module for any signs of malfunction. If these checks do not yield results, you may need to perform a TPMS sensor reset, especially if you've recently replaced a tire or switched to a spare that contains a TPMS sensor. Addressing these issues promptly is crucial for maintaining safe driving conditions and ensuring your vehicle operates at its best.

Troubleshooting Tire Pressure Warning Light in Cadillac CTS

When dealing with the tire pressure warning light in your Cadillac CTS, it's essential to understand the common problems that may cause this alert. One of the primary reasons for the light to illuminate is low air pressure in one or more tires, which can often be resolved by simply checking and adjusting the tire pressure to the manufacturer's recommended levels. Additionally, a depleted battery in a tire pressure sensor can lead to malfunction, necessitating a battery replacement or sensor repair. If you've recently replaced a spare tire with a road tire that has a TPMS sensor, the system may require a reset to recognize the new sensor, which can be done by following specific steps outlined in your vehicle's manual. Furthermore, a malfunctioning TPMS receiver module or a damaged pressure sensor can also trigger the warning light, indicating a need for professional diagnosis and repair. By being aware of these common issues and taking the appropriate steps, you can effectively troubleshoot and resolve the tire pressure warning light concern in your Cadillac CTS, ensuring a safer driving experience.

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

When the Tire Pressure Warning Light remains illuminated in your Cadillac CTS, it is crucial to address the issue without delay. Ignoring this warning can lead to unsafe driving conditions, such as reduced traction and increased tire wear, which may ultimately result in a blowout or loss of vehicle control. The light could indicate low tire pressure due to a leak or a malfunctioning tire pressure monitoring system (TPMS), both of which require immediate attention. Additionally, if the TPMS sensor is faulty or if a spare tire has been improperly installed, the system may not function correctly, further complicating the situation. Regularly checking your tire pressure and inspecting for leaks can help prevent these issues, but if the warning light persists, it is advisable to reset the TPMS or consult a professional. Taking these steps not only ensures your safety on the road but also helps maintain the longevity and performance of your vehicle.

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