2019 Buick Regal TourX Tire Pressure Warning Light Stays On

Addressing Tire Pressure Warning Light in 2019 Buick Regal TourX

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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 2019 Buick Regal TourX 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 Buick Regal TourX 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 are the initial steps to diagnose a tire pressure warning light that stays on in a 2019 Buick Regal TourX?

When faced with a tire pressure warning light that remains illuminated in your 2019 Buick Regal TourX, it's essential to adopt a systematic diagnostic approach. Begin by checking the tire pressure in all four tires, including the spare, using a reliable tire pressure gauge to ensure they meet the manufacturer's recommended PSI. This simple step often resolves the issue, as low tire pressure is a frequent culprit. Next, conduct a thorough visual inspection of each tire for any signs of damage, such as punctures or bulges, which could indicate a slow leak. Additionally, look for any foreign objects lodged in the tire tread, as these can also lead to pressure loss. If the tires appear to be in good condition, consider resetting the tire pressure monitoring system (TPMS) as outlined in your vehicle's manual, as this can sometimes recalibrate the system and turn off the warning light. If these steps do not resolve the issue, it may be time to consult a certified mechanic who can perform a more detailed diagnosis of the TPMS and any underlying problems. By following this methodical approach, you can effectively address the tire pressure warning light and ensure your vehicle remains safe and roadworthy.

What could be causing the tire pressure warning light to remain on in a 2019 Buick Regal TourX?

When the tire pressure warning light remains on in a 2019 Buick Regal TourX, it can be a source of concern for any DIY enthusiast. The first step is to check the tire pressure in all four tires, as low pressure is the most common reason for the warning light to activate. If the pressure is within the recommended range, the issue may stem from a faulty tire pressure sensor, which could require replacement. Additionally, the sensors may need recalibration to ensure they are functioning correctly, a task that might necessitate professional assistance. It's also important to inspect the electrical connections within the tire pressure monitoring system, as wiring issues can lead to persistent warning lights. In some cases, performing a system reset can resolve the issue, which can usually be done by following the vehicle's manual. If these troubleshooting steps do not alleviate the problem, seeking help from a certified mechanic is recommended to identify and fix any underlying issues.

What immediate steps should be taken if the tire pressure warning light stays on in a 2019 Buick Regal TourX?

When the tire pressure warning light remains illuminated in your 2019 Buick Regal TourX, it is crucial to act promptly to avoid potential safety hazards and costly repairs. Ignoring this warning can lead to decreased vehicle performance, increased tire wear, and even tire blowouts, which pose serious risks on the road. Start by checking the tire pressure in all four tires with a reliable gauge, ensuring they meet the manufacturer's specifications found in the owner's manual or on the door jamb. If you discover any tires are underinflated, use a quality air compressor to inflate them to the correct levels. Additionally, visually inspect each tire for any signs of damage, such as punctures or bulges, as these issues can exacerbate the problem. Once you have addressed the tire pressure and any visible damage, reset the tire pressure monitoring system according to the instructions in your owner's manual. If the warning light persists despite these efforts, it is essential to consult a qualified mechanic, as there may be a deeper issue with the monitoring system that requires professional attention. Taking these steps not only ensures your safety but also helps maintain the longevity and performance of your vehicle.

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