2013 Jeep Grand Cherokee User Guide SRT - Page 99

2013 Jeep Grand Cherokee Manual

Page 99 highlights

WHAT TO DO IN EMERGENCIES • When the malfunction indicator is illuminated, the system may not be able to detect or signal low tire pressure as intended. TPMS malfunctions may occur for a variety of reasons, including the installation of replacement or alternate tires or wheels on the vehicle that prevent the TPMS from functioning properly. Always check the TPMS malfunction telltale after replacing one or more tires or wheels on your vehicle, to ensure that the replacement or alternate tires and wheels allow the TPMS to continue to function properly. NOTE: Tire pressures change by approximately 1 psi (7 kPa) per 12° F (7° C) of air temperature change. Keep this in mind when checking tire pressure inside a garage, especially in the Winter. Example: If garage temperature is 68°F (20°C) and the outside temperature is 32°F (0°C), then the cold tire inflation pressure should be increased by 3 psi (21 kPa), which equals 1 psi (7 kPa) for every 12°F (7°C) for this outside temperature condition. CAUTION! The TPMS has been optimized for the original equipment tires and wheels. TPMS pressures and warning have been established for the tire size equipped on your vehicle. Undesirable system operation or sensor damage may result when using replacement equipment that is not of the same size, type, and/or style. Aftermarket wheels can cause sensor damage. Do not use tire sealant from a can, or balance beads if your vehicle is equipped with a TPMS, as damage to the sensors may result. BRAKE - Brake Warning Light • The Brake Warning light illuminates when there is either a system malfunction or the parking brake is applied. If the light is on and the parking brake is not applied, it indicates a possible brake hydraulic malfunction, brake booster problem or an Anti-Lock Brake System problem. • Please have your vehicle serviced immediately. WARNING! Driving a vehicle with the red brake light on is dangerous. Part of the brake system may have failed. It will take longer to stop the vehicle. You could have a collision. Have the vehicle checked immediately. 97

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• When the malfunction indicator is illuminated, the system may not be able to
detectorsignallowtirepressureasintended.TPMSmalfunctionsmayoccurfora
variety of reasons, including the installation of replacement or alternate tires or
wheels on the vehicle that prevent the TPMS from functioning properly. Always
checktheTPMSmalfunctiontelltaleafterreplacingoneormoretiresorwheelson
yourvehicle,toensurethatthereplacementoralternatetiresandwheelsallowthe
TPMS to continue to function properly.
NOTE:
Tirepressureschangebyapproximately1psi(7kPa)per12°F(7°C)ofairtemperature
change. Keep this in mind when checking tire pressure inside a garage, especially in
theWinter.Example:Ifgaragetemperatureis68°F(20°C)andtheoutsidetemperature
is 32°F (0°C), then the cold tire inflation pressure should be increased by 3 psi
(21kPa),whichequals1psi(7kPa)forevery12°F(7°C)forthisoutsidetemperature
condition.
CAUTION!
TheTPMShasbeenoptimizedfortheoriginalequipmenttiresandwheels.TPMS
pressures and warning have been established for the tire size equipped on your
vehicle. Undesirable system operation or sensor damage may result when using
replacement equipment that is not of the same size, type, and/or style. After-
market wheels can cause sensor damage. Do not use tire sealant from a can, or
balancebeadsifyourvehicleisequippedwithaTPMS,asdamagetothesensors
may result.
BRAKE
-BrakeWarningLight
• TheBrakeWarninglightilluminateswhenthereiseitherasystemmalfunctionor
theparkingbrakeisapplied.Ifthelightisonandtheparkingbrakeisnotapplied,
it indicates a possible brake hydraulic malfunction, brake booster problem or an
Anti-Lock Brake System problem.
• Please have your vehicle serviced immediately.
WARNING!
Drivingavehiclewiththeredbrakelightonisdangerous.Partofthebrakesystem
mayhavefailed.Itwilltakelongertostopthevehicle.Youcouldhaveacollision.
Have the vehicle checked immediately.
WHAT TO DO IN EMERGENCIES
97