2015 Audi RS5 Tire Pressure Warning Light Stays On

Common Causes for the Tire Pressure Warning Light in Your 2015 Audi RS5 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 2015 Audi RS5 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 2015 Audi RS5 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 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 2015 Audi RS5?

To effectively diagnose the tire pressure warning light issue on your 2015 Audi RS5, begin with a thorough check of the tire pressure in all four tires using a reliable tire pressure gauge. It's essential to ensure that each tire is inflated to the manufacturer's recommended levels, which can typically be found on a sticker located inside the driver's side door jamb or in the owner's manual. After confirming the correct pressure, inspect the tires for any visible damage, such as cuts, punctures, or bulges, and look for any foreign objects embedded 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), as it may need recalibration after adjustments. Refer to your vehicle's manual for specific instructions on how to perform this reset. Additionally, check the functionality of the TPMS sensors in each tire, as faulty sensors can trigger the warning light. If you find that the sensors are not working properly, they may need recalibration or replacement. Should these steps not resolve the issue, it is advisable to consult a qualified mechanic or dealership, as they possess the necessary tools and expertise to diagnose and address any underlying TPMS-related problems effectively. By following this diagnostic approach, you can systematically identify and resolve the tire pressure warning light issue on your Audi RS5.

What could cause the tire pressure warning light to stay on in a 2015 Audi RS5?

When the tire pressure warning light stays on in a 2015 Audi RS5, it can be indicative of several common issues that are important to address for both safety and vehicle performance. The most prevalent cause is low tire pressure, which can be easily remedied by checking and inflating the tires to the recommended levels specified by the manufacturer. If the tire pressure is adequate, the problem may lie with a faulty tire pressure sensor that could require replacement to ensure accurate monitoring. Additionally, the sensors may need recalibration, which can be performed by a professional or at an Audi service center to guarantee they are functioning correctly. Electrical issues within the tire pressure monitoring system can also trigger the warning light, necessitating a thorough inspection for any wiring faults or malfunctions. Lastly, a simple system reset might resolve the issue, and this can often be done by following the instructions in the vehicle's manual. By understanding and addressing these potential problems, you can effectively troubleshoot the tire pressure warning light in your Audi RS5, ensuring a safer driving experience.

How urgent is it to address the tire pressure warning light on a 2015 Audi RS5 that stays on?

Addressing the tire pressure warning light on your 2015 Audi RS5 is not just a matter of convenience; it is a critical safety concern that demands immediate attention. When this light remains illuminated, it signals that your tires may be underinflated, which can severely compromise your vehicle's handling and braking capabilities. This increased risk of accidents, particularly in emergency situations, underscores the importance of acting swiftly. Additionally, driving on low tire pressure can lead to uneven tire wear, significantly shortening the lifespan of your tires and potentially resulting in a dangerous blowout. Beyond safety, underinflated tires can also negatively impact your fuel efficiency, leading to higher fuel costs over time. Furthermore, ignoring the warning could indicate a malfunction in the Tire Pressure Monitoring System (TPMS), which may require repair or replacement to ensure accurate monitoring. Therefore, for the safety of yourself and others on the road, as well as to maintain your vehicle's performance and prevent costly repairs, it is essential to address the tire pressure warning light as soon as it appears.

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