Tire Pressure Monitoring System (TPMS)

The optional tire pressure monitoring system (TPMS) has the ability to monitor the air pressure of the four road tires. The tire-mounted pressure sensors transmit signals to the TPMS module by using the valve stem as an antenna. These transmissions are sent approximately every 30 seconds when the vehicle speed exceeds 32 km/h (20 mph). The TPMS module compares each tire pressure sensor transmission against two pressure limits - low and high. If the TPMS module determines that the tire pressure has exceeded the low or high limit, the TPMS module communicates on the SCP network to the vehicle message center, which then displays a warning message.

Replacement tires must follow the recommended:

• tire sizes.
• speed rating.
• load range.
• tire construction type.

Use of any other tire size or type can seriously affect:

• ride.
• handling.
• speedometer/odometer calibration.
• vehicle ground clearance.
• tire clearance between the body and chassis.
• wheel bearing life.
• brake cooling.
• tire pressure sensors (if equipped with TPMS)

New wheels need to be installed when vehicle's wheels:

• are bent.
• are cracked.
• are dented.
• are heavily corroded.
• are leaking.
• have elongated wheel hub bolt holes.
• have excessive lateral or radial runout.

It is mandatory to use only the tire sizes recommended on the tire chart attached to the vehicle. Larger or smaller tires can damage the vehicle, affect durability, and require changing the speedometer calibration. Make sure wheel size and offsets match those recommended for the tire in use.

1. Inspect for signs of uneven wear that may indicate a need for balancing, rotation or front suspension alignment, a damaged tie-rod, or damaged steering components.
2. Check tires for:
   • cuts.
   • stone bruises.
   • abrasions
   • blisters.
   • embedded objects.
3. Tread wear indicators are molded into the bottom of the tread grooves. Install a new tire when the indicator bands become visible.