Tire Pressure Sensor Relearn: Notes

NOTE: Before proceeding with the steps below, ensure that no other sensor learn procedure is being performed simultaneously, or that tire pressures are not being adjusted on a TPM equipped vehicle within close proximity.

NOTE: In the following procedure, a TPM Sensor Activation Tool (J-46079) may be used in place of increasing/decreasing pressures to enable sensor. To use, place activator antenna against the tire sidewall close to the wheel rim at the valve stem location, then press and release the ACTIVATE button.

NOTE: If TPM Sensor Activation Tool (J-46079) is used, and vehicle is having trouble entering relearn mode, check batteries in activation tool. Low batteries may allow some functions to work, but not allow vehicle to perform learn function. When the internal battery is fresh (fully charged), the indicator is "full" or is all dark. When the battery is depleted, the indicator shows "empty" or is all light.

NOTE: In the event a particular sensor's information is displayed on the special tool upon activation but the horn does not chirp, it may be necessary to rotate the wheel valve stem to a different position due to the sensor signal is being blocked by another component.

There are three ways to enable the learn mode; using a scan tool, using the keyless entry transmitters (if equipped) or using the driver information center (DIC).

After the learn mode has been enabled there are two different methods of activating the transmitters in the tires; utilizing the J-46079 Tire Pressure Monitor Diagnostic Tool at each tire or increase/decrease tire pressure for 8-10 seconds in each tire. If a scan tool has been used to enable the learn mode, the J-46079 must be used to activate the transmitters.