2011 Jeep Grand Cherokee User Guide

WHAT TO DO IN EMERGENCIES• When the malfunction indicator is illuminated, the system may not be able to detect orsignal low tire pressure as intended. TPMS malfunctions may occur for a variety ofreasons, including the installation of replacement or alternate tires or wheels on thevehicle that prevent the TPMS from functioning properly. Always check the TPMSmalfunction telltale after replacing one or more tires or wheels on your vehicle, toensure that the replacement or alternate tires and wheels allow the TPMS to continueto function properly.CAUTION!The TPMS has been optimized for the original equipment tires and wheels. TPMSpressures and warning have been established for the tire size equipped on yourvehicle. Undesirable system operation or sensor damage may result when usingreplacement equipment that is not of the same size, type, and/or style. Aftermarketwheels can cause sensor damage. Do not use tire sealant from a can, or balancebeads if your vehicle is equipped with a TPMS, as damage to the sensors mayresult.BRAKE - Brake Warning Light• The Brake Warning light illuminates when there is either a system malfunction or theparking brake is applied. If the light is on and the parking brake is not applied, itindicates a possible brake hydraulic malfunction, brake booster problem or anAnti-Lock Brake System problem.• We recommend you drive to the nearest service center and have the vehicle servicedimmediately.WARNING!Driving a vehicle with the red brake light on is dangerous. Part of the brake systemmay have failed. It will take longer to stop the vehicle. You could have a collision.Have the vehicle checked immediately.- Malfunction Indicator Light (MIL)• Certain conditions, such as a loose or missing gas cap, poor fuel quality, etc., mayilluminate the MIL after engine start. The vehicle should be serviced if the light stays onthrough several typical driving cycles. In most situations, the vehicle will drive normallyand not require towing.• If the MIL flashes when the engine is running, serious conditions may exist that couldlead to immediate loss of power or severe catalytic converter damage. Werecommend you do not operate the vehicle. Have the vehicle serviced immediately.64