FCA 2022 Chassis Cab — Service TPMS Warning

266 SAFETY Service TPMS Warning A system fault may occur due to an incorrect TPMS sensor location condition. When a system fault occurs due to an incorrect TPMS sensor location, the Tire Pressure Monitoring System Warning Light will flash on and off for 75 seconds and then remain on solid. The system fault will also sound a chime. In addition, the instrument cluster will display a “Tire Pressure Temporarily Unavailable” message in place of the tire pressure display screen. If the ignition switch is cycled, this sequence will repeat, providing the system fault still exists.

If the system fault no longer exists, the Tire Pressure Monitoring System Warning Light will no longer flash and the tire pressure display screen will be displayed showing the tire pressure values in the correct locations. If a system fault is detected, the Tire Pressure Monitoring System Warning Light will flash on and off for 75 seconds and then remain on solid. In addition, the instrument cluster will display a "SERVICE TPM SYSTEM" message for a minimum of five seconds and then display dashes (- -) in place of the pressure value to indicate which sensor is not being received. Example:

Low Tire Pressure Display If the ignition switch is cycled, this sequence will repeat, providing the system fault still exists. If the system fault no longer exists, the Tire Pressure Monitoring System Warning Light will no longer flash, and the "SERVICE TPM SYSTEM" message will no longer display, and a pressure value will display in place of the dashes. A system fault can occur due to any of the following: Should this occur, you should stop as soon as possible and inflate the tires with a low pressure condition (those in a different color in the instrument cluster graphic) to the vehicle’s recommended cold placard pressure inflation value shown in the "Inflate to XX" message.

Once the system receives the updated tire pressures, the system will automatically update, the graphic display in the instrument cluster will return to its original color, and the Tire Pressure Monitoring System Warning Light will turn off. The vehicle may need to be driven for up to 20­minutes above 15­mph (24­km/h) in order for the TPMS to receive this information. Vehicles With Non-Matching Full Size Spare Or Compact Spare Signal interference due to electronic devices or driving next to facilities emitting the same radio frequencies as the TPMS sensors. The non-matching full size spare or compact spare tire does not have a TPMS sensor.

There­ fore, the TPMS will not monitor the pressure in the non-matching full size spare or compact spare tire. Installing aftermarket window tinting that contains materials that may block radio wave signals. NOTE: When filling warm tires, the tire pressure may need to be increased up to an additional 4 psi (28 kPa) above the recommended cold placard pressure in order to turn the Tire Pressure Monitoring System Warning Light off. Accumulation of snow or ice around the wheels or wheel housings.

If you install the non-matching full size spare or compact spare tire in place of a road tire that has a pressure below the low-pressure warning limit, upon the next ignition switch cycle, the TPMS Warning Light and a “LOW TIRE” message will remain on and a chime will sound. In addi­ Using tire chains on the vehicle. Using wheels/tires not equipped with TPMS sensors.