WARNING   WARNING:  The tire pressure monitoring system is not a substitute for manually checking tire pressures. You should periodically check tire pressures using a pressure gauge. Failure to correctly maintain tire pressures could increase the risk of tire failure, loss of control, vehicle rollover and personal injury.

Low Tire Pressure Indicator  You must check the tire pressures (including the spare tire where applicable) every two weeks when the tires are cold.
 You must inflate the tires to the correct pressure.   See   Tire Pressures - Tourneo. 
The tire pressures are also on the tire inflation pressure label (located on the edge of driver door or the B-Pillar).
As a driver assistance feature, your vehicle has a tire pressure monitoring system. A warning lamp will illuminate when one or more of the tires are significantly under-inflated. If the low tire pressure warning lamp illuminates, you should stop your vehicle as soon as it is safe to do so, check the tires and inflate them to the correct pressure.
Driving on under-inflated tires can:
  • Cause them to overheat.
  • Lead to tire failure.
  • Reduce fuel efficiency.
  • Reduce tire life.
  • Affect vehicle handling or stopping ability.
The system is not a substitute for correct tire maintenance.
 You must maintain the correct tire pressures, even if low tire pressure has not illuminated the warning lamp.
The tire pressure monitoring system has a system malfunction indicator to warn you when the system is not operating correctly. The malfunction indicator and low tire pressure warning lamp have a combined function. When the system detects a malfunction, the warning lamp will flash for approximately one minute and then remain illuminated. This sequence will occur every time you switch the ignition on while the malfunction remains. The system has detected a fault that requires service.
When the malfunction indicator is illuminated, the system may not be able to detect or signal low tire pressures. A malfunction may occur for a variety of reasons, including the installation of a replacement tire or wheel that prevents the system from functioning correctly. Always check the tire pressure monitoring system malfunction warning after replacing one or more tires or wheels on your vehicle. Make sure the replacement tires or wheels allow the system to continue to function correctly. See When the Temporary Spare Tire is Installed in this section.
How Temperature Affects the Tire Pressures
Under normal driving conditions tire pressures may increase by up to 0.3 bar (4 psi) from a cold start situation.
If the vehicle is stationary overnight and the temperature significantly lower than the daytime temperature, tire pressures may decrease by up to 0.2 bar (3 psi) when there is a drop in the ambient temperature of 31°F (17°C) or more. The system detects this pressure decrease as being significantly below the correct inflation pressure and the warning lamp illuminates.
When Inflating Tires
When inflating the tires the system may not respond immediately to the air added to the tires.
Only inflate tires when they are cold.
If the warning lamp is on:
  • Check each tire to verify that none are flat.
  • If one or more tires are flat, repair as necessary.
  • Check the tire pressures and inflate all tires to the correct pressure.   See   Tire Pressures - Tourneo. 
  • Carry out the tire pressure monitoring system reset procedure.
When Changing Tires
Tire Pressure Sensor Location
You should always have tires serviced by an authorized dealer.
Note:   Each road wheel and tire is fitted with a tire pressure sensor located inside the wheel and tire assembly cavity. The pressure sensor attaches to the valve stem. The tire covers the pressure sensor and it is not visible unless the tire is removed. Take care when changing the tire to avoid damaging the sensor.
When Changing Wheels
When changing the wheels of your vehicle, the tire pressure monitoring system needs to re-learn the tire pressure sensors. To achieve this perform the following:
  1. Make sure all tires are inflated to the proper pressure. If not, inflate the tires to the correct pressure.   See   Tire Pressures - Tourneo. 
  1. Park your vehicle for at least 20 minutes.
  1. Carry out the tire pressure monitoring system reset procedure. See Tire Pressure Monitoring System Reset Procedure later in this section.
  1. The tire pressure monitoring system will automatically re-learn the tire pressure sensors the next time you drive your vehicle for approximately 15 minutes above 40km/h (25 mph).
Understanding the Tire Pressure Monitoring System
The system measures the pressure in the four road tires and sends the tire pressure readings to your vehicle.
The system detects this lower pressure as being significantly below the correct inflation pressure and the warning lamp illuminates. You must inflate the tires to the correct pressure.
When the Temporary Spare Tire is Installed
If you need to replace a road wheel and tire with the temporary spare wheel, the system will continue to identify a defect. This is to remind you to repair the damaged road wheel and tire and refit the repaired road wheel and tire assembly to your vehicle. To restore the correct operation of the system, you must have the repaired road wheel and tire assembly refitted to your vehicle. For additional information, see Changing Tires with a Tire Pressure Monitoring System in this section.
When You Believe the System is Not Operating Correctly
The main function of the system is to warn you when the tire pressures are low. It can also warn you in the event the system is no longer capable of operating correctly. See the following chart for information concerning the system:

Warning lamp   Description   Action  
Solid warning lamp   Tire(s) under-inflated  
  1. Make sure tires are at the correct pressure.   See   Wheels and Tires.  The tire pressures are also on the tire inflation pressure label (located on the edge of driver door or the B-Pillar).
  2. After inflating the tires to the correct pressure you must carry out the tire pressure monitoring system reset procedure. See Tire Pressure Monitoring System Reset Procedure in this chapter.
Spare tire in use   Repair the damaged road wheel and tire and refit the repaired road wheel and tire assembly to your vehicle to restore the correct operation of the system.  
Tire pressure monitoring system malfunction   If the tires are correctly inflated and the spare tire is not in use but the light remains on, the system has detected a fault that requires service.  
Flashing warning lamp   Spare tire in use   Repair the damaged road wheel and tire and refit the repaired road wheel and tire assembly to your vehicle to restore the correct operation of the system.  
Tire pressure monitoring system malfunction   If the tires are correctly inflated and the spare tire is not in use but the light remains on, the system has detected a fault that requires service.  

Tire Pressure Monitoring System Reset Procedure
Overview
You must carry out the system reset procedure after each tire replacement or adjustment of the tire pressures.
To maintain your vehicle load carrying capability, your vehicle requires different tire pressures in the front tires compared to the rear tires.
The system illuminates the warning lamp at different pressures for the front and rear tires.
The tires need to be periodically rotated to provide consistent performance and maximum tire life, the system needs to know when the tires have been rotated to determine which set of tires are on the front and rear axles. With this information, the system can detect and correctly warn of low tire pressures.
Carrying Out the System Reset Procedure
Switch the ignition on. Using the information display control select:

Message   Description and Action  
Vehicle settings
  
Tyre pressure sys
Press and hold the OK button until confirmation appears. Alternatively, if your vehicle has a tire pressure monitoring system reset button, press and hold the button until confirmation appears.