2017 BMW 740i XDrive Tire Pressure Warning Light Stays On

Tire Pressure Warning Light in 2017 BMW 740i xDrive: 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 2017 BMW 740i xDrive 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 2017 BMW 740i xDrive 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 persistent tire pressure warning light on my 2017 BMW 740i xDrive?

To effectively diagnose the persistent tire pressure warning light on your 2017 BMW 740i xDrive, start with the simplest solutions before moving on to more complex diagnostics. Begin by checking the tire pressure of all four tires, ensuring they are inflated to the manufacturer's recommended levels, as low pressure is a frequent trigger for the warning light. Next, visually inspect each tire for any signs of damage, such as punctures or bulges, which could indicate a leak or other issues. If the tire pressure is adequate and the tires appear undamaged, proceed to reset the tire pressure monitoring system following the instructions in your vehicle's manual; this can often clear false warnings. Additionally, examine the tire pressure sensors for any visible damage or malfunction, as these components can fail over time. If the warning light remains illuminated after these steps, it may be time to consult a certified mechanic or dealership, where specialized diagnostic tools can provide a more accurate assessment of the problem. By systematically addressing these areas, you can effectively troubleshoot the issue and ensure your vehicle's safety and performance.

What could cause the tire pressure warning light to stay on in a 2017 BMW 740i xDrive?

When the tire pressure warning light stays on in your 2017 BMW 740i xDrive, it’s essential to identify the underlying issues that may be causing this alert. The most frequent reason is low tire pressure, which can be easily checked using a tire pressure gauge; if any tire is below the recommended level, inflating it should turn off the warning light. If the pressure is adequate, the issue might stem from a faulty tire pressure sensor that may need replacement. Additionally, sensor calibration can sometimes be off, requiring a professional to recalibrate the system for accurate readings. Electrical faults within the tire pressure monitoring system can also trigger the warning light, and diagnosing these issues may necessitate specialized expertise. Lastly, consider potential interference from electronic devices or physical obstructions near the sensors, as these can disrupt the monitoring system's functionality. By methodically addressing these common problems, you can effectively troubleshoot and resolve the persistent tire pressure warning light in your BMW.

What immediate steps should be taken if the tire pressure warning light remains on in a 2017 BMW 740i xDrive?

When the tire pressure warning light remains illuminated in your 2017 BMW 740i xDrive, it is crucial to act promptly to ensure your safety and the longevity of your vehicle. Ignoring this warning can lead to serious consequences, including reduced vehicle handling, increased tire wear, and even tire blowouts, which pose significant safety 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. If you find any tires are underinflated, inflate them immediately to the correct levels. Additionally, inspect each tire for visible damage, such as punctures or bulges, as these can compromise your safety and require urgent repair or replacement. After addressing any pressure discrepancies or damage, reset the tire pressure monitoring system according to your owner's manual to clear the warning light. If the light persists despite these efforts, it is essential to consult a qualified mechanic or BMW service center to diagnose potential underlying issues. Taking these steps not only enhances your driving safety but also helps prevent costly repairs down the line.

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