2009 Toyota Tundra Owners Manual - Page 526

4-3. Do-it-yourself maintenance n Tire pressure warning system certification MODEL/FCC IDs: Transmitter: GQ4-32T Receiver: GQ4-37R IC (Canada) IDs: Transmitter: 1470A-13T Receiver: 1470A-9R For vehicles sold in U.S.A. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. WARNING: Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. For vehicles sold in Canada Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Maintenance and care 4 CAUTION n When inspecting or replacing tires Observe the following precautions to prevent accidents. Failure to do so may cause damage to parts of the drive train, as well as dangerous handling characteristics, which may lead to fatal or injury accidents. l Do not mix tires of different makes, models, tread patterns or tread- wear. l Do not use tire sizes other than those recommended by Toyota. l Do not mix radial, bias-belted, or bias-ply tires. l Do not mix summer, all season and winter tires. 499