2018 Buick Encore Tire Pressure Warning Light Stays On

Resolve Tire Pressure Warning Light in 2018 Buick Encore: Causes and Solutions

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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 2018 Buick Encore 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 Buick Encore 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 in my 2018 Buick Encore?

To effectively diagnose the tire pressure warning light issue in your 2018 Buick Encore, begin with a straightforward approach that prioritizes simpler solutions before delving into more complex diagnostics. Start by checking the tire pressure in all four tires using a reliable tire pressure gauge, ensuring that the readings align with the recommended PSI found in your owner's manual or on the driver's side door jamb sticker. Next, conduct a thorough visual inspection of each tire for any signs of damage, such as punctures or bulges, and look for any foreign objects that may be lodged in the tread. If you find that the tire pressure is either too low or too high, make the necessary adjustments using an air compressor or by releasing air from the valve stem. After addressing the tire pressure, attempt to reset the Tire Pressure Monitoring System (TPMS) in your vehicle, as this can often clear minor sensor issues and turn off the warning light. However, if the warning light remains illuminated despite these efforts, it may indicate a more serious problem with the TPMS sensors or system, at which point consulting a mechanic or dealership for professional diagnosis and repair is advisable. By following this methodical approach, you can efficiently troubleshoot the tire pressure warning light issue and ensure your vehicle's safety on the road.

What could be causing the tire pressure warning light to remain on in a 2018 Buick Encore?

When the tire pressure warning light remains on in your 2018 Buick Encore, it’s essential to identify the underlying issues to ensure your safety and vehicle performance. The most common reason for this warning light is low tire pressure, which can be easily checked using a tire pressure gauge. Make sure to inflate all tires to the recommended levels specified in your owner’s manual, as even a minor drop in pressure can trigger the alert. If tire pressure is adequate, the problem may lie with a faulty tire pressure sensor, which could require replacement. Additionally, sensor calibration issues can occur, necessitating a professional recalibration to ensure accurate readings. Electrical problems within the tire pressure monitoring system may also cause the light to stay on, so inspecting the wiring and connections is a prudent step. Lastly, be aware that environmental factors, such as extreme temperature fluctuations or driving over rough terrain, can temporarily affect tire pressure readings. By methodically addressing these potential causes, you can effectively troubleshoot and resolve the issue of the tire pressure warning light in your Buick Encore.

How urgent is it to address the tire pressure warning light that stays on in a 2018 Buick Encore?

Addressing the tire pressure warning light in your 2018 Buick Encore is not just a matter of convenience; it is a critical safety issue that requires immediate attention. Ignoring this warning can lead to serious safety concerns, as low tire pressure significantly impacts vehicle handling and braking, increasing the likelihood of accidents, particularly in challenging driving conditions. Furthermore, driving on underinflated tires accelerates uneven wear, which can necessitate costly premature tire replacements. This not only affects your wallet but also diminishes fuel efficiency, leading to higher fuel costs over time. Additionally, prolonged neglect of low tire pressure can result in tire damage, raising the risk of a blowout while driving. Therefore, it is essential to check and adjust your tire pressure according to the manufacturer's specifications or seek professional help to ensure your safety and the longevity of your vehicle.

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