2018 Cadillac Escalade ESV Tire Pressure Warning Light Stays On

Tire Pressure Warning Light in 2018 Cadillac Escalade ESV: 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 2018 Cadillac Escalade ESV 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 2018 Cadillac Escalade ESV 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 2018 Cadillac Escalade ESV?

To effectively diagnose the tire pressure warning light issue on your 2018 Cadillac Escalade ESV, begin with a thorough check of the tire pressure in all four tires using a reliable tire pressure gauge. It's crucial to ensure that the pressure aligns with the recommended levels found in your vehicle's manual, as incorrect pressure can trigger the warning light. Next, conduct a visual inspection of each tire for any signs of damage, such as punctures, cuts, or bulges, and look for any foreign objects lodged in the tread that could be causing a leak. If the tire pressure is correct and the tires appear undamaged, the next step is to reset the tire pressure monitoring system (TPMS), which may require following specific instructions from your vehicle's manual. If the warning light remains illuminated after these checks, it may be time to consult a mechanic or dealership for a more comprehensive diagnosis, as they possess specialized tools to pinpoint the underlying issue. By following this diagnostic approach, you can systematically address the problem and ensure your vehicle's safety and performance.

What could be causing the tire pressure warning light to stay on in a 2018 Cadillac Escalade ESV?

When the tire pressure warning light stays on in a 2018 Cadillac Escalade ESV, it can signal several underlying issues that DIY enthusiasts can address. The most common reason is low tire pressure, so the first step is to check and inflate all tires to the recommended levels. If the pressure is adequate, the next area to investigate is the tire pressure sensors; a malfunctioning sensor can lead to persistent warning lights. It's also worth considering that the sensor's battery may need replacement, particularly in older vehicles. If the sensors appear to be functioning correctly but the warning light remains illuminated, recalibrating the tire pressure monitoring system could resolve the issue. By methodically checking these factors, you can often diagnose and fix the problem without professional help. However, if these troubleshooting steps do not resolve the warning light issue, seeking assistance from a qualified mechanic is recommended for a thorough inspection.

How urgent is it to address the tire pressure warning light on a 2018 Cadillac Escalade ESV?

Addressing the tire pressure warning light on a 2018 Cadillac Escalade ESV is of utmost urgency due to the significant safety risks and potential vehicle damage associated with neglecting this warning. When the tire pressure is not at the recommended levels, it can severely compromise the vehicle's handling and braking capabilities, leading to dangerous driving conditions. Moreover, underinflated tires can accelerate uneven wear, which not only shortens the lifespan of the tires but also diminishes fuel efficiency, resulting in higher costs over time. The risk of tire blowouts increases with low tire pressure, posing a serious threat to both the driver and passengers. The tire pressure monitoring system serves as a crucial alert mechanism, and timely action can prevent further complications and costly repairs. Therefore, it is essential to check and adjust the tire pressure as soon as the warning light illuminates, ensuring a safe and efficient driving experience.

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