2021 Jeep Grand Cherokee Owners Manual - STARTING THE ENGINE

STARTING THE ENGINE

Before starting your vehicle, adjust your seat, adjust the inside and outside mirrors, fasten your seat belt, and if present, instruct all other occupants to buckle their seat belts.

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AUTOMATIC TRANSMISSION

The gear selector must be in the NEUTRAL (N) or PARK (P) position before you can start the engine. Apply the brakes before shifting into any driving gear.

NORMAL STARTING

The transmission must be in PARK or NEUTRAL.

Press and hold the brake pedal while pushing the ENGINE START/STOP button once.

The system starts the vehicle. If the vehicle fails to start, the starter will disengage automatically after 10 seconds.

If you wish to stop the cranking of the engine prior to the engine starting, push the ENGINE START/STOP button again.

Place the gear selector in PARK, then push and release the ENGINE START/STOP button. The ignition will return to the OFF mode.

If the gear selector is not in PARK (with vehicle stopped) and the ENGINE START/ STOP button is pushed once, the transmission will automatically select PARK and the engine will turn off, however the ignition will remain in the ACC mode (NOT the OFF mode). Never leave a vehicle out of the PARK position, or it could roll.

If the gear selector is in NEUTRAL, and the vehicle speed is below 5 mph (8 km/h), pushing the ENGINE START/STOP button once will turn the engine off. The ignition will remain in the ACC mode.

If the vehicle speed is above 5 mph (8 km/h), the ENGINE START/STOP button must be held for two seconds (or three short pushes in a row) to turn the engine off. The ignition will remain in the ACC mode (NOT the OFF mode) if the engine is turned off when the transmission is not in PARK.

The system will automatically time out and the ignition will cycle to the OFF mode after

30 minutes of inactivity if the ignition is left in the ACC or RUN (engine not running) mode and the transmission is in PARK.

The ENGINE START/STOP button operates similar to an ignition switch. It has three modes: OFF, ACC, and RUN. To change the ignition modes without starting the vehicle and use the accessories, follow these steps:

Start with the ignition in the OFF mode

Push the ENGINE START/STOP button once to place the ignition to the ACC mode (instrument cluster will display “ACC”)

Push the ENGINE START/STOP button a second time to place the ignition to the RUN mode (instrument cluster will display “ON/ RUN”)

Push the ENGINE START/STOP button a third time to return the ignition to the OFF mode (instrument cluster will display “OFF”)

Only press one pedal at a time while driving the vehicle. Torque performance of the vehicle could be reduced if both pedals are pressed at the same time. If pressure is detected on both pedals simultaneously, a warning message will display in the instrument cluster page 81.

AUTOPARK

AutoPark is a supplemental feature to assist in placing the vehicle in PARK if the below occur. It is a back up system and should not be relied upon as the primary method by which the driver shifts the vehicle into PARK.

The conditions under which AutoPark will engage are outlined on the following pages.

AutoPark will engage when all of these conditions are met:

Vehicle is equipped with an 8-speed trans- mission

Vehicle is not in PARK

Vehicle speed is 1.2 mph (1.9 km/h) or less

Ignition switched from RUN to ACC NOTE:

For Keyless Enter-N-Go equipped vehicles, The engine will turn off and the ignition switch will change to ACC mode.

AutoPark will engage when all of these conditions are met:

Vehicle is equipped with an 8-speed trans- mission

Vehicle is not in PARK

Vehicle speed is 1.2 mph (1.9 km/h) or less

Driver’s seat belt is unbuckled

Driver’s door is ajar

Brake pedal is not pressed

The message “AutoPark Engaged Shift to P then Shift to Gear” will display in the instrument cluster.

In some cases the ParkSense graphic will be displayed in the instrument cluster. In these cases, the shifter must be returned to “P” to select desired gear.

AutoPark will engage ONLY when vehicle speed

is 1.2 mph (1.9 km/h) or less. 4

The message “Vehicle Speed is Too High to Shift to P” will be displayed in the instrument cluster if vehicle speed is above 1.2 mph (1.9 km/h).

AutoPark will be disabled when operating the vehicle in 4WD LOW.

The message “AutoPark Disabled” will be displayed in the instrument cluster.

Vehicle is not in PARK

Driver’s door is ajar

The message “AutoPark Not Engaged” will be displayed in the instrument cluster. A warning chime will continue until you shift the vehicle into PARK or the driver’s door is closed.

ALWAYS DO A VISUAL CHECK that your vehicle is in PARK by looking for the "P" in the instrument cluster display and on the shifter. As an added precaution, always apply the parking brake when exiting the vehicle.

IF ENGINE FAILS TO START

If the engine fails to start after you have followed the "Normal Starting" or "Extreme Cold Weather" procedure, it may be flooded. Push the accelerator pedal all the way to the floor and hold it there. Crank the engine for no more than

15 seconds. This should clear any excess fuel in case the engine is flooded. Leave the ignition key in the RUN position, release the accelerator pedal and repeat the “Normal Starting” procedure.

COLD WEATHER OPERATION (BELOW

—22°F OR −30°C)

To ensure reliable starting at these temperatures, use of an externally powered electric engine block heater (available from an authorized dealer) is recommended.

AFTER STARTING

The idle speed is controlled automatically, and it will decrease as the engine warms up.