Tire Inflation Monitor (TIM), also known as Tire Pressure Monitor (TPM), is a unique feature for this vehicle. The TIM system will notify the driver when an urgent LOW inflation pressure condition is present in one of the vehicle's tires so that the driver can quickly perform the needed maintenance. The Body Control Module (BCM) receives a momentary ground signal from the Tire Inflation Reset Switch when the customer or technician presses the reset switch (located in the fuse block). The tires should always be set to the correct pressure before the reset switch is pressed. The BCM sends a Class 2 message to the EBCM/EBTCM that the switch has been pressed. The EBCM/EBTCM will then send a Class 2 message to the Instrument Panel (IP) to turn off the LOW TIRE Indicator and the TIM system will go into the Autolearn mode. The Autolearn mode will then requires at least 30 minutes of straight-line driving for the autolearn mode to be complete (this is done so TIM can relearn tires sizes). The TIM system consists of the following four components: