Ignition Park Interlock; Brake/Transmission Shift Interlock System; Fuel Economy (Eco) Mode - Jeep Grand Cherokee SRT 2019 Owner's Manual

CAUTION!
Damage to the transmission may occur if
the following precautions are not observed:
• Shift into or out of PARK or REVERSE only
after the vehicle has come to a complete
stop.
• Do not shift between PARK, REVERSE,
NEUTRAL, or DRIVE when the engine is
above idle speed.
• Before shifting into any gear, make sure
your foot is firmly pressing the brake pedal.
NOTE:
You must press and hold the brake pedal while
shifting out of PARK.

Ignition Park Interlock

This vehicle is equipped with an Ignition Park
Interlock which requires the transmission to be
in PARK before the ignition can be turned to the
OFF mode. This helps the driver avoid inadver-
tently leaving the vehicle without placing the
transmission in PARK. This system also locks
the transmission in PARK whenever the ignition
is in the OFF mode.
NOTE:
The transmission is NOT locked in PARK when
the ignition is in the ACC mode (even though the
engine will be off). Ensure that the transmission
is in PARK, and the ignition is OFF (not in ACC
mode) before exiting the vehicle.
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Brake/Transmission Shift Interlock
System
This vehicle is equipped with a Brake Transmis-
sion Shift Interlock system (BTSI) that holds the
transmission gear selector in PARK unless the
brakes are applied. To shift the transmission out
of PARK, the engine must be running and the
brake pedal must be pressed. The brake pedal
must also be pressed to shift from NEUTRAL
into DRIVE or REVERSE when the vehicle is
stopped or moving at low speeds.

Fuel Economy (ECO) Mode

The Fuel Economy (ECO) mode can improve
the vehicle's overall fuel economy during normal
driving conditions. Push the "ECO" switch in the
center stack of the instrument panel to activate
or disable ECO mode. A light on the switch
indicates when ECO mode is enabled.
Fuel Economy Mode Switch
When the Fuel Economy (ECO) Mode is en-
abled, the vehicle control systems will change
the following:
• The transmission will upshift sooner and
downshift later.
• The transmission will launch (from a stop) in
second gear.
• The torque converter clutch may engage at
lower engine speeds and remain on longer.
• The overall driving performance will be more
conservative.
• Some ECO mode functions may be tempo-
rarily inhibited based on temperature and
other factors.
NOTE:
ECO mode is only available in AUTO, SPORT,
or TRACK mode.
Active Noise Cancellation — If Equipped
Your vehicle is equipped with an Active Noise
Cancellation System. This system uses four
microphones embedded in the headliner to de-
tect undesirable exhaust noise, which some-
times occurs when operating in ECO mode. An
onboard frequency generator creates counter-
acting sound waves through the audio system to
help keep the vehicle quiet.