GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
192 Driving and Operating
The ignition will switch from ACC/
ACCESSORY 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
ignition system in ON/RUN/START.
Once engine cranking begins,
release the button. Engine cranking
will continue until the engine starts.
See Starting the Engine 0192. The
ignition will then remain in ON/RUN.
Service Mode
This power mode is available for
service and diagnostics, and to
verify the proper operation of the
malfunction indicator lamp as may
be required for emission inspection
purposes. With the vehicle off, and
the brake pedal not applied,
pressing and holding the button for
more than five seconds will place
the vehicle in Service Mode. The
instruments and audio systems will
operate as they do in ON/RUN, but
the vehicle will not be able to be driven. The engine will not start in
Service Mode. Press the button
again to turn the vehicle off.
Starting the Engine
Shift the vehicle into P (Park) or
N (Neutral). To restart the engine
when the vehicle is already moving,
use N (Neutral) only.
Caution
Do not try to shift to P (Park) if the
vehicle is moving. If you do, you
could damage the transmission.
Shift to P (Park) only when the
vehicle is stopped.
Caution
If you add electrical parts or
accessories, you could change
the way the engine operates. Any
resulting damage would not be
covered by the vehicle warranty.
See
Add-On Electrical Equipment
0 258.
Starting Procedure
1. With the Keyless Access
system, the RKE transmitter
must be in the vehicle. Press
ENGINE START/STOP with the
brake pedal applied. When the
engine begins cranking, let go
of the button.
The idle speed will go down as
the engine gets warm. Do not
race the engine immediately
after starting it.
If the RKE transmitter is not in
the vehicle, if there is
interference, or if the RKE
battery is low, the Driver
Information Center (DIC) will
display a message.
Caution
Cranking the engine for long
periods of time, by trying to start
the engine immediately after
cranking has ended, can overheat
and damage the cranking motor,
and drain the battery. Wait at
(Continued)
GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-13687875) - 2020 - CRC - 10/28/19
398 Index
HeaterEngine . . . . . . . . . . . . . . . . . . . . . . . . 194
Heating . . . . . . . . . . . . . . . . . . . . 165, 169
High-Beam On Light . . . . . . . . . . . . 135
High-Speed Operation . . . . . . . . . . 306
Hill and Mountain Roads . . . . . . . . 183
Hill Descent Control (HDC) . . . . . 211
Hill Descent Control Light . . . . . . . 131
Hill Start Assist (HSA) . . . . . . . . . . 209
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
How to Wear Seat Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . 57
HVAC . . . . . . . . . . . . . . . . . . . . . . 165, 169
I
Ignition Positions . . . . . . . . . . . . . . . 190
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 30
Indicator Pedestrian Ahead . . . . . . . . . . . . 132
Vehicle Ahead . . . . . . . . . . . . . . . . 132
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . 79
Information Publication Ordering . . . . . . . . . . 379
Infotainment . . . . . . . . . . . . . . . . . . . . 164
Infotainment System . . . . . . . . . . . . 383
Instrument Cluster . . . . . . . . . 115, 119 Instrument Panel Overview . . . . . . . 5
Interior Rearview Mirrors . . . . . . . . . 33
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - North
America . . . . . . . . . . . . . . . . . . . . . . . 335
K
Keyless Entry
Remote (RKE) System . . . . . . . . . . 8
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
L
Labeling, Tire Sidewall . . . . . . . . . . 300
Lamps Courtesy . . . . . . . . . . . . . . . . . . . . . . 160
Daytime Running (DRL) . . . . . . 157
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 160
Exterior Controls . . . . . . . . . . . . . . 155
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . 157
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . 163
Malfunction Indicator (Check Engine) . . . . . . . . . . . . . 127
On Reminder . . . . . . . . . . . . . . . . . 136
Reading . . . . . . . . . . . . . . . . . . . . . . 161 Lane Change Alert (LCA) . . . . . . . 238
Lane Keep Assist (LKA) . . . . . . . . 240
Lane Keep Assist Light . . . . . . . . . 131
Lap-Shoulder Belt . . . . . . . . . . . . . . . 59
LATCH System
Replacing Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . . . 92
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . 85
LED Lighting . . . . . . . . . . . . . . . . . . . . 288
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . 161
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Illumination Control . . . . . . . . . . . 160
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 288
Lights Airbag Readiness . . . . . . . . . . . . . 126
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . . 130
Brake System Warning . . . . . . . 129
Charging System . . . . . . . . . . . . . 127
Check Engine (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . 127
Cruise Control . . . . . . . . . . . . . . . . 136
Door Ajar . . . . . . . . . . . . . . . . . . . . . 136
Electric Parking Brake . . . . . . . . 130
