2015 Jeep Grand Cherokee Owner Manual Supplement - Page 18
2015 Jeep Grand Cherokee Manual
Page 18 highlights
16 UNDERSTANDING YOUR INSTRUMENT PANEL 12. Temperature Gauge The temperature gauge shows engine coolant temperature. Any reading within the normal range indicates that the engine cooling system is operating properly. The gauge pointer will likely indicate a higher temperature when driving in hot weather, up mountain grades, or when towing a trailer. It should not be allowed to exceed the upper limits of the normal operating range. NOTE: Temperature readings in the orange range of the gauge are acceptable under some high load condition. If the gauge points to the H or ЉEngine Temperature HotЉ DID message appears a light and a single chime will require driver correction. CAUTION! Driving with a hot engine cooling system could damage your vehicle. If the temperature gauge reads "H" pull over and stop the vehicle. Idle the vehicle with the air conditioner turned off until the pointer drops back into the normal range. If the pointer remains on the "H" and you hear continuous chimes, turn the engine off immediately and call an authorized dealer for service.