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The TPMS system will always reset to the max load
inflation pressure (cold) low pressure warning thresh-
old condition when the system experiences a loss of
electrical power. For example, by momentarily discon-
necting the battery or IOD fuse.
To switch from the max load inflation pressure (cold) low
pressure warning threshold to the light load inflation
pressure (cold) low pressure warning threshold, the
driver must first lower all four road tire pressures to the
Light Load Inflation Pressure values as listed on the
Supplemental Tire Pressure Information label. The
Supplemental Tire Pressure Information label is located
on the rear face of the driver door. Use an accurate tire
gauge to check the tire pressures when lowering all four
tire pressures. Next proceed to turning the ignition on to
the Run position. This may cause the TPMS low pressure
warning telltale lamp located in the Instrument Cluster to
turn ON and a chime to sound since the tire pressures
have been lowered below the max load inflation pressure
(cold) pressures. After all four tire pressures have been
lowered to the Light Load inflation pressures, press the
“Light Load” reset switch. If the “Light Load” switch
amber colored LED turns ON, the TPM system low
pressure telltale lamp will illuminate at a tire pressure
Example Supplemental Tire Pressure Label
352 STARTING AND OPERATING