2010 Jeep Grand Cherokee User Guide - Page 47

WHAT TO DO IN EMERGENCIES 24 HOUR TOWING ASSISTANCE - U.S. ONLY • Dial toll-free 1-800-521-2779. • Provide your name, vehicle identification number and license plate number. • Provide your location, including telephone number, from which you are calling. • Briefly describe the nature of the problem and answer a few simple questions. • You will be given the name of the service provider and an estimated time of arrival. If you feel you are in an "unsafe situation", please let us know. With your consent, we will contact local police or safety authorities. INSTRUMENT CLUSTER WARNING LIGHTS - Electronic Stability Program (ESP) Indicator Light • If this indicator light flashes during acceleration, apply as little throttle as possible. While driving, ease up on the accelerator. Adapt your speed and driving to the prevailing road conditions. To improve the vehicle's traction when starting off in deep snow, sand or gravel, it may be desirable to switch the ESP system off. - Tire Pressure Monitoring System (TPMS) Light • A Tire Pressure Monitoring Light and a "low tire" message will display in your instrument cluster along with an audible chime if one or more of your vehicle's four road tires are significantly under-inflated. • Check the inflation pressure of each tire and inflate to the recommended pressure for your vehicle. The tire pressures recommended for your vehicle are found on the "Tire and Loading Information" label located on the driver's side door opening. The TPMS light should not be used as a tire pressure gauge when adjusting your tire pressure. • It is recommended that you check the tire pressure in the morning when tires are cool; inflate each tire to the recommended pressure for your vehicle. The light will turn off after your vehicle's tire pressures are properly inflated and the pressure has been recognized. The vehicle may need to be driven for up to 20 minutes above 15 mph (25 km/h) before the light will turn off. • Temperature changes can affect tire pressure, causing the TPMS light to turn on. Tire pressures will also increase as the vehicle is driven - this is normal and you should not adjust for this increased pressure. • Driving on under-inflated tires reduces your vehicle's fuel efficiency and tire tread life. If a spare tire is in use on the vehicle, the TPMS light may turn on. - 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. • We recommend you drive to the nearest Service Center and have the vehicle serviced immediately. 45