2008 Chrysler Aspen Owner Manual - Page 329

328 STARTING AND OPERATING NOTE: Your vehicle is equipped with a non-matching full size spare wheel and tire assembly. 1. This spare tire does not have a tire pressure monitoring sensor. Therefore, the TPMS will not monitor the tire pressure in the spare tire. 2. If you install the full size spare tire in place of a road tire that has a pressure below the low-pressure warning limit, upon the next ignition key cycle a chime will sound and the TPM Telltale Lamp will still turn ON due to the low tire. 3. However, after driving the vehicle for up to 10 minutes above 15 mph (25 km/h), the TPM Telltale Lamp will flash on and off for 75 seconds and then remain on solid. 4. For each subsequent ignition key cycle, a chime will sound and the TPM Telltale Light will flash on and off for 75 seconds and then remain on solid. 5. Once you repair or replace the original road tire, and reinstall it on the vehicle in place of the full size spare tire, the TPMS will update automatically and the TPM Telltale Lamp will turn OFF, as long as no tire pressure is below the low-pressure warning limit in any of the four active road tires. The vehicle may need to be driven for up to 10 minutes above 15 mph (25 km/h) in order for the TPMS to receive this information. Premium System - If Equipped The Tire Pressure Monitor System (TPMS) uses wireless technology with wheel rim mounted electronic sensors to monitor tire pressure levels. Sensors, mounted to each wheel as part of the valve stem, transmit tire pressure readings to the receiver module. NOTE: It is particularly important for you to check the tire pressure in all of your tires regularly and to maintain the proper pressure.