The concept

Check the inflation pressure in the four installed tires. The system notifies you if there is a significant loss of pressure in one or more tires.

Functional requirement

The system must have been reset while the inflation pressure was correct; otherwise, reliable signaling of a flat tire is not ensured.

Always use wheels with TPM electronics to ensure that the system will operate properly.

Each time a tire inflation pressure has been corrected or a wheel or tire has been changed, reset the system.

System limitations

Sudden serious tire damage caused by external influences cannot be indicated in advance.

The system does not function correctly if it has not been reset. For example, a flat tire may be indicated even though the tire inflation pressures are correct.

The system is inactive and cannot indicate a flat tire:

> When a wheel without TPM electronics is installed.
> Interference with TPM by other systems or devices with the same transmission frequency.

Status display

The current status of the Tire Pressure Monitor TPM can be displayed on the Control Display, e.g., whether or not the TPM is active.

1.  "Vehicle Info"
2.  "Vehicle status"
3.  "Tire Pressure Monitor TPM"

The status is displayed.

Status indicator on the Control DisplayThe color of the tires represents the status of the tires and the system.

A change in the tire inflation pressure during driving is taken into account.

A correction is only required when this is indicated by the TPM.

Green wheels

The inflation pressure corresponds to the desired state.

"TPM active" appears in the Control Display.

One wheel yellow

There is a flat tire or substantial loss of tire pressure in the indicated tire.

All wheels yellow

> There is a flat tire or substantial loss of tire pressure in several tires.
> The system was not reset after a wheel change and thus issues a warning based on the inflation pressures initialized last.

Gray wheels

The system cannot detect a puncture. Reasons for this may be:

> TPM is being reset.
> Interference from systems or devices that use the same radio frequency.
> Malfunction.

Resetting the system

Each time a tire inflation pressure has been corrected or a wheel or tire has been changed, reset the system.

1.  "Vehicle Info"
2.  "Vehicle status"
3.  "Reset"

4.  Start the engine – do not drive away.
5.  Reset the inflation pressure by selecting "Reset".
6.  Start driving.

The tires are shown in gray and "Resetting TPM..." is displayed.

After driving a few minutes, the set inflation pressures in the tires are accepted as the target values to be monitored. The resetting process is completed automatically as you drive. On the Control Display, the wheels are shown in green and "Status: TPM active" is displayed.

The trip can be interrupted at any time. When driving resumes, resetting continues automatically.

If a flat tire is detected while the system is resetting, all tires on the Control Display are displayed in yellow. The message "Low tire!" is displayed.

Message for low tire inflation pressure The warning lamps light up in yellow and red. A message appears on the

Control Display. In addition, a signal sounds.

> There is a flat tire or substantial loss of tire pressure in the indicated wheel.
> The system was not reset after a wheel change and thus issues a warning based on the inflation pressures initialized last.

Reduce speed and stop the vehicle with caution. Avoid sudden braking and steering maneuvers.

When a low tire pressure is reported, the Dynamic Stability Control DSC is activated.

Actions in the event of a flat tire

Run-flat tires

You can continue driving with a damaged tire at speeds up to 50 mph/80 km/h.

If the vehicle is not equipped with run-flat tires, do not continue driving; continuing to drive can result in serious accidents.

When driving with a damaged tire:

1.  Avoid sudden braking and steering maneuvers.
2.  Do not exceed a speed of 50 mph/80 km/h.
3.  At the next opportunity, check the inflation pressure in all four tires.

If the inflation pressure is correct in all four tires, then the Tire Pressure Monitor may not have been reset. The system must then be reset.

Possible driving distance with complete loss of tire pressure:

The distance it is possible to drive with a flat tire depends on the load and the stress on the vehicle while driving.

With an average load, it may be possible to drive for approx. 50 miles/80 km.

When driving with damaged tires, the handling characteristics change, e.g. the vehicle will skid sooner when braking, braking distances will be longer, or self-steering response will change. Adapt your driving style accordingly. Avoid turning abruptly and driving over obstacles such as curbs, potholes, etc.

Since the possible driving distance depends to a considerable degree on the strain exerted on the vehicle while driving, it can be shorter or, with a gentle driving style, can also be longer, depending on the speed, road condition, outside temperature, vehicle load, etc.

Drive cautiously and do not exceed a speed of 50 mph/80 km/h.

When there is a tire pressure loss, the handling characteristics change, e.g. there will be reduced directional stability during braking, braking distances will be longer, and self-steering response will change.

Vibrations or loud noises while driving can indicate complete failure of the tire.

Reduce your speed and bring the vehicle to a stop; otherwise, tire components may become detached, which could result in an accident. Do not continue driving; instead, contact your BMW center.

Message for unsuccessful system reset

Yellow warning lamp lights up. A message appears on the Control Display.

The system has detected a wheel change, but was not reset. A reliable warning is not possible at the current inflation pressures.

Check the tire inflation pressure and reset the system.

Malfunction

The small warning lamp flashes in yellow and then lights up continuously; the large warning lamp lights up in yellow.The tires appear in gray in the Control Display. No punctures can be detected.

Display in the following situations:

> A wheel without TPM electronics has been installed:

Have it checked by your BMW center.

> Malfunction

Have the system checked.

> Tire Pressure Monitor was unable to complete the resetting process. Reset the system again.

The small warning lamp flashes in yellow and then lights up continuously; the large warning lamp lights up in yellow.The tires appear in gray in the Control Display.

Display in the following situations:

Interference from systems or devices that use the same radio frequency. The system automatically becomes active again when the vehicle moves out of the interference zone.

Declaration according to NHTSA/ FMVSS 138

Tire Pressure Monitoring Systems

Each tire should be checked monthly when cold and inflated to the inflation pressure recommended by the vehicle manufacturer on the vehicle placard or tire inflation pressure label. If your vehicle has tires of a different size than the size indicated on the vehicle placard or tire inflation pressure label, you should determine the proper tire inflation pressure for those tires. As an added safety feature, your vehicle has been equipped with a tire pressure monitoring system, TPMS, that illuminates a low tire pressure telltale when one or more of your tires are significantly underinflated. Accordingly, when the low tire pressure telltale illuminates, you should stop and check your tires as soon as possible, and inflate them to the proper pressure. Driving on a significantly underinflated tire causes the tire to overheat and can lead to tire failure. Underinflation also reduces fuel efficiency and tire tread life, and may affect the vehicle’s handling and stopping ability. Please note that the TPMS is not a substitute for proper tire maintenance, and it is the driver’s responsibility to maintain correct tire pressure, even if underinflation has not reached the level at which the TPMS low tire pressure telltale illuminates.

The TPMS malfunction indicator is combined with the low tire pressure telltale. When the system detects a malfunction, the telltale will flash for approximately one minute and then remain continuously lit. This sequence will continue upon subsequent vehicle startups as long as the malfunction exists. When the malfunction indicator is illuminated, the system may not be able to detect or signal low tire pressure as intended. TPMS malfunctions may occur for a variety of reasons, including the installation of replacement or alternate tires or wheels on the vehicle that prevent the TPMS from functioning properly. Always check the TPMS malfunction telltale after replacing one or more tires or wheels on your vehicle to ensure that the replacement or alternate tires and wheels allow the TPMS to continue to function properly.