Stop/Start System
The Stop/Start function was developed to reduce fuel consumption. The system will stop the engine automatically during a vehicle stop if the required conditions are met. Releasing the brake pedal or pressing the accelerator pedal will automatically restart the engine.
AUTOSTOP MODE
The Stop/Start feature is enabled after every normal customer engine start. At that time, the system will go into STOP/START READY and if all other conditions are met, can go into a STOP/START AUTOSTOP ACTIVE “Autostop” mode.
To Activate The Autostop Mode, The Following Must Occur:
The system must be in STOP/START READY state. A STOP/START READY message will be displayed in the instrument cluster display within the Stop/Start section .
The vehicle must be completely stopped.
The gear selector must be in a forward gear and the brake pedal pressed.
The engine will shut down, the tachometer will move to the zero position and the Stop/Start telltale will illuminate indicating you are in Autostop. Customer settings will be maintained upon return to an engine running condition.
POSSIBLE REASONS THE ENGINE DOES NOT AUTOSTOP
Prior to engine shut down, the system will check many safety and comfort conditions to see if they are fulfilled. Detailed information about the operation of the Stop/Start system may be viewed in the instrument cluster display Stop/Start Screen. In the following situations the engine will not stop:
Driver’s seat belt is not buckled.
Driver’s door is not closed.
Battery temperature is too warm or cold.
Battery charge is low.
The vehicle is on a steep grade.
Cabin heating or cooling is in process and an acceptable cabin temperature has not been achieved.
HVAC is set to full defrost mode at a high blower speed.
HVAC is set to MAX A/C.
Engine has not reached normal operating temperature.
The transmission is not in a forward gear.
Hood is open.
Vehicle is in 4WD LOW transfer case mode (if equipped with 4WD).
Brake pedal is not pressed with sufficient pressure with vehicle in DRIVE position.
Accelerator pedal input.
Engine temp is too high.
5 mph (8 km/h) threshold not achieved from previous AUTOSTOP.
Steering angle is beyond threshold.
It may be possible for the vehicle to be driven several times without the Stop/Start system going into a STOP/START READY state under more extreme conditions of the items listed above.
TO START THE ENGINE WHILE IN AUTOSTOP MODE
While in a forward gear, the engine will start when the brake pedal is released or the throttle pedal is pressed. The transmission will automatically re-engage upon engine restart.
Conditions That Will Cause The Engine To Start Automatically While In Autostop Mode:
The transmission gear selector is moved out of DRIVE except in the PARK and NEUTRAL position.
To maintain cabin temperature comfort.
HVAC is set to full defrost mode.
HVAC system temperature or fan speed is manually adjusted.
Battery voltage drops too low.
Stop/Start OFF switch is pushed.
A Stop/Start system error occurs.
4WD system is put into 4WD LOW mode (if equipped with 4WD).
A system fault is present.
Conditions That Force An Application Of The Electric Park Brake While In Autostop Mode:
The driver’s door is open and brake pedal released.
The driver’s door is open and the driver’s seat belt is unbuckled.
The engine hood has been opened.
A Stop/Start system error occurs.
If the Electric Park Brake is applied with the engine off, the engine may require a manual restart and the Electric Park Brake may require a manual release (press brake pedal and push Electric Park Brake switch) .
TO MANUALLY TURN OFF THE STOP/START SYSTEM
Stop/Start OFF Switch
Push the Stop/Start OFF switch (located on the center console). The light on the switch will illuminate. The “STOP/START OFF” message will appear in the instrument cluster display and the Autostop mode will be disabled .
Note:
The Stop/Start system will reset itself back to an ON condition every time the ignition is turned off and back on.
TO MANUALLY TURN ON THE STOP/START SYSTEM
Push the Stop/Start OFF switch (located on the switch bank). The light on the switch will turn off.
SYSTEM MALFUNCTION
If there is a malfunction in the Stop/Start system, the system will not shut down the engine. A “SERVICE STOP/START SYSTEM” message and a yellow Stop/Start telltale will appear in the instrument cluster display .
If the “SERVICE STOP/START SYSTEM” message appears in the instrument cluster display, have the system checked by an authorized dealer.
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