2021 Mercedes-Benz AMG GT R Tire Pressure Warning Light Stays On

Addressing Tire Pressure Warning Light in 2021 Mercedes-Benz AMG GT R

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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 2021 Mercedes-Benz AMG GT R 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 2021 Mercedes-Benz AMG GT R 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.

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 2021 Mercedes-Benz AMG GT R?

To effectively diagnose the tire pressure warning light issue in your 2021 Mercedes-Benz AMG GT R, 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 manufacturer's specifications, which can typically be found in the owner's manual or on a sticker located inside the driver's door jamb. Next, conduct a visual inspection of each tire for any signs of damage, such as cuts, punctures, or bulges, and look for any foreign objects that may be lodged in the tread. 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 require recalibration after adjustments. Refer to your vehicle's manual for specific instructions on how to perform this reset. However, if the warning light remains illuminated despite these efforts, it may indicate a more complex issue with the TPMS sensors or system itself, at which point consulting a certified mechanic or dealership for a comprehensive diagnosis is advisable. By following this systematic approach, you can efficiently address the tire pressure warning light concern and ensure your vehicle's safety and performance.

What could be causing the tire pressure warning light to remain on in a 2021 Mercedes-Benz AMG GT R?

When the tire pressure warning light remains on in a 2021 Mercedes-Benz AMG GT R, it’s essential to identify the underlying issues to ensure your vehicle's safety and performance. The most common reason for this warning light is low tire pressure, which can result from natural air loss or changes in temperature. Regularly checking and maintaining your tire pressure at the recommended levels is crucial. Another potential cause could be a faulty tire pressure sensor; if the sensor is malfunctioning, it may need to be replaced to restore accurate readings. Additionally, sensor calibration issues can occur, requiring a recalibration at a certified service center to ensure proper functionality. It's also important to inspect your tires for any visible damage or slow leaks, as these can lead to reduced pressure and trigger the warning light. Lastly, an electrical malfunction within the tire pressure monitoring system may be the culprit, necessitating diagnostic testing to identify and resolve the issue. By addressing these factors promptly, you can maintain optimal safety and performance in your vehicle.

What immediate steps should be taken if the tire pressure warning light remains on in a 2021 Mercedes-Benz AMG GT R?

When the tire pressure warning light remains illuminated in your 2021 Mercedes-Benz AMG GT R, it is crucial to act swiftly to ensure your safety and the vehicle's performance. Ignoring this warning can lead to dangerous driving conditions, including reduced traction and increased tire wear, which may ultimately result in a blowout. Start by checking the tire pressure in all four tires, as underinflation is a common cause for the warning light. If you find any tires are below the recommended pressure, inflate them immediately using a reliable air compressor. Additionally, inspect each tire for visible damage, such as punctures or bulges, which could compromise their integrity. After addressing any pressure discrepancies or damage, reset the tire pressure monitoring system to clear the warning light. If the light persists, it is essential to consult a qualified mechanic or an authorized Mercedes-Benz service center, as there may be underlying issues with the monitoring system that require professional attention. Taking these steps promptly not only enhances your safety but also helps maintain the longevity and performance of your vehicle.

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