GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-18552429) - 2025
Driving and Operating 165
Ignition Positions
This vehicle has pushbutton starting.
The remote key must be in the vehicle for the
system to operate. If the pushbutton start is
not working, the vehicle may be near astrong
radio antenna signal causing interference to
the Keyless Access system. See Remote Key
Operation 37.
To shift out of P (Park), the ignition must be on
or in Service Mode and the brake pedal must
be applied.
Stopping the Engine/OFF (No Indicator Lights):
When the vehicle is stopped, press
ENGINE START/STOP once to turn the engine
off.
If the vehicle is in P (Park), the ignition will turn
o
ff, and Retained Accessory Power (RAP) will
remain active. See Retained Accessory Power
(RAP) 3167.
If the vehicle is not in P (Park), the ignition
will return to accessory mode and display
the message SHIFT TO PARK in the Driver
Information Center (DIC). When the vehicle is
shifted into P (Park), the ignition will turn off.
Do not turn the engine off when the vehicle is
moving. This will cause aloss of power assist
in the brake and steering systems and disable
the airbags.
If the vehicle must be shut off in an emergency:
1. Brake using afirm and steady pressure. Do
not pump the brakes repeatedly. This may
deplete power assist, requiring increased
brake pedal force.
2. Shift the vehicle to N (Neutral). This can
be done while the vehicle is moving.
After shifting to N (Neutral), firmly apply
the brakes and steer the vehicle to
asafe location.
3. Come to acomplete stop, shift to P (Park),
and turn the ignition off. The shift lever
must be in P (Park) to turn the ignition off.
4. Set the parking brake. See El
ectric Parking
Brake 3175.
{ Warning
Turning off the vehicle while moving may
ca
use loss of power assist in the brake and
steering systems and disable the airbags.
While driving, only shut the vehicle off in
an emergency.
If the vehicle cannot be pulled over, and must
b
e
shut off while driving, press and hold ENGINE
START/STOP for longer than two seconds, or
press twice in five seconds.
Accessory Mode (Amber Indicator Light): This
mode allows some electrical accessories to be
used when the engine is off.
With the ignition off, pressing the button one
time without the brake pedal applied will place
the ignition system in accessory mode.
The ignition will switch from accessory
mode to OFF after five minutes to prevent
battery rundown.
ON/RUN/START (Green Indicator Light): This
mode is for driving and starting. With the
ignition off, and the brake pedal applied,
pressing the button once will place the