xB L4-2.4L (2AZ-FE) (2009)
Tires: Technical Service Bulletins
Tires - Inflation Pressure Compensation/Adjustment
S-SB-0033-09
Rev1
June 26, 2009
Tire Inflation Pressure Compensation and Adjustment
Service Category
Suspension
Section
Tire/Wheel
Market
USA
Applicability
TSB REVISION NOTICE
July 22, 2010 Rev1:
^
Applicability has been updated to include 2011 model year vehicles.
Any previous printed versions of this service bulletin should be discarded.
Introduction
The purpose of this bulletin is to provide a procedure to adjust tire pressure correctly when outside temperature is significantly colder than shop
temperature.
Seasonal temperature change can dramatically alter tire pressure, which can cause the tire pressure warning lamp to illuminate.
Warranty Information
Tire Pressure vs. Tire Temperature
Tire temperature is dependent on "cold" tire pressure, driving distance and speed, ambient temperature and road surface temperature. As the temperature
of the tire changes, air in the tire expands and contracts, changing the tire's air pressure. The cold tire pressure for all Toyota models will vary and will
need to be adjusted accordingly.
"Cold" tire pressure, as shown on the tire pressure label on our vehicles, is generally considered to be the pressure in a tire that has not been driven in the
past 4 hours and has been parked outdoors.
The TPWS MUST be initialized with the tire pressure marked on the vehicle placard. Tires are then adjusted according to the information in this bulletin
to ensure that the TPWS light does not illuminate unnecessarily.
The TPWS MUST be initialized with the tire pressure marked on the vehicle placard. Tires are then adjusted according to the information in this bulletin
to ensure that the TPWS light does not illuminate unnecessarily.