2020 GMC ACADIA engine coolant

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
280 Vehicle Care
The vehicle may also display a
message on the Driver Information
Center (DIC).
If the decision is made not to lift the
hood when this warning appears,
get service help right away. See
Roadside Assistance Program
0374.
If the decision is made to lift the
hood, make sure the vehicle is
parked on a level surface. Then
check to see if the engine cooling
fan is running. If the engine is
overheating, the fan should be
running. If it is not, do not continue
to run the engine. Have the vehicle
serviced.
Caution
Do not run the engine if there is a
leak in the engine cooling system.
This can cause a loss of all
coolant and can damage the
system and vehicle. Have any
leaks fixed right away.
If Steam Is Coming from the
Engine Compartment
{Warning
Steam and scalding liquids from a
hot cooling system are under
pressure. Turning the pressure
cap, even a little, can cause them
to come out at high speed and
you could be burned. Never turn
the cap when the cooling system,
including the pressure cap, is hot.
Wait for the cooling system and
pressure cap to cool.
If No Steam Is Coming from
the Engine Compartment
If an engine overheat warning is
displayed but no steam can be seen
or heard, the problem may not be
too serious. Sometimes the engine
can get a little too hot when the
vehicle:
. Climbs a long hill on a hot day.
. Stops after high-speed driving.
. Idles for long periods in traffic. If the overheat warning is displayed
with no sign of steam:
1. Turn the air conditioning off.
2. Turn the heater on to the highest temperature and to the
highest fan speed. Open the
windows as necessary.
3. When it is safe to do so, pull off the road, shift to P (Park) or
N (Neutral), and let the
engine idle.
If the engine coolant temperature
gauge is no longer in the
overheated area, the vehicle can be
driven. Continue to drive the vehicle
slowly for about 10 minutes. Keep a
safe distance from the vehicle in
front. If the warning does not come
back on, continue to drive normally
and have the cooling system
checked for proper fill and function.
If the warning continues, pull over,
stop, and park the vehicle
right away.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
Vehicle Care 281
If there is no sign of steam, idle the
engine for three minutes while
parked. If the warning is still
displayed, turn off the engine until it
cools down.
Washer Fluid
What to Use
When windshield washer fluid is
needed, be sure to read the
manufacturer's instructions before
use. If operating the vehicle in an
area where the temperature may fall
below freezing, use a fluid that has
sufficient protection against
freezing.
Adding Washer Fluid
Open the cap with the washer
symbol on it. Add washer fluid until
the tank is full. SeeEngine
Compartment Overview 0264 for
reservoir location.
Caution
. Do not use washer fluid that
contains any type of water
repellent coating. This can
cause the wiper blades to
chatter or skip.
. Do not use engine coolant
(antifreeze) in the
windshield washer. It can
damage the windshield
washer system and paint.
. Do not mix water with
ready-to-use washer fluid.
Water can cause the
solution to freeze and
damage the washer fluid
tank and other parts of the
washer system.
(Continued)
Caution (Continued)
.When using concentrated
washer fluid, follow the
manufacturer instructions for
adding water.
. Fill the washer fluid tank
only three-quarters full when
it is very cold. This allows
for fluid expansion if
freezing occurs, which could
damage the tank if it is
completely full.
Brakes
Disc brake pads have built-in wear
indicators that make a high-pitched
warning sound when the brake pads
are worn and new pads are needed.
The sound can come and go or can
be heard all the time when the
vehicle is moving, except when
applying the brake pedal firmly.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
292 Vehicle Care
FusesUsage
F23 Parking/Trailer lamps
F24 Right trailer stoplamp/Turn lamp
F25 Steering column lock
F26 –
F27 Left trailer stoplamp/ Turn lamp
F28 –
F29 –
F30 Washer pump
F31 –
F32 –
F33 Fog lamps
F34 Horn
F35 –
F36 Headlamp high-beam left
F37 Headlamp high-beam right
F38 Automatic headlamp leveling motor Fuses
Usage
F39 Transmission control module 1/Battery 1
F40 Left rear bus electrical center/
Ignition
F41 Instrument cluster
F42 Heating, ventilation, and air conditioning
F43 Head-Up display
F44 Electronic brake control module
electric brake
booster/Run/Crank
F45 –
F46 –
F47 –
F48 Rear wiper 2
F49 Interior rearview mirror/Trailer
F50 Fuel system control module
F51 Heated steering wheel Fuses
Usage
F52 Air conditioning clutch
F53 –
F54 Coolant pump
F55 –
F56 –
F57 Engine control module/Ignition
F58 Transmission control module/Ignition
F59 Engine control module battery
F60 –
F61 O2 sensor 1/ Aeroshutter
F62 Engine control module–odd
F63 O2 sensor 2
F64 Engine control module–even
F65 Engine control module powertrain 1

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
Vehicle Care 293
FusesUsage
F66 Engine control module powertrain 2
F67 Engine control module powertrain 3
F68 –
F69 –
F70 –
F71 –
F72 –
F73 –
F74 –
F75 –
F76 –
F77 –
Relays Usage
K1 Starter 1
K2 Run/Crank
K3 Starter 3
K4 LED/Automatic headlamps Relays
Usage
K5 –
K6 Coolant pump
K7 Engine control module
K8 Air conditioning
K9 –
K10 Starter 2
Instrument Panel Fuse
Block
The instrument panel fuse block is
inside the center console on the
passenger side of the vehicle.
See the fuse block cover for specific
fuse information.
Open the fuse panel door,
or remove the panel from the
passenger side by pulling it out.
To reinstall the door, push the door
back into its original location.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
354 Service and Maintenance
.If equipped with the engine air
filter life system, check the air
filter life percentage.
If necessary, replace the engine
air filter and reset the engine air
filter life system. See Engine Air
Filter Life System 0273. If the
vehicle is not equipped with the
engine air filter life system,
inspect the engine air cleaner
filter. See Engine Air Cleaner/
Filter 0273.
. Check engine coolant level. See
Cooling System 0275.
. Check windshield washer fluid
level. See Washer Fluid 0281.
. Check tire inflation pressures.
See Tire Pressure 0305.
. Inspect tire wear. See Tire
Inspection 0312.
. Visually check for fluid leaks.
. Inspect brake system. See
Exterior Care 0342.
. Visually inspect steering,
suspension, and chassis
components for damage,
including cracks or tears in the rubber boots, loose or missing
parts, or signs of wear at least
once a year. See
Exterior Care
0 342.
. Inspect power steering for
proper electrical connections,
binding, cracks, chafing, etc.
. Visually inspect halfshafts and
driveshafts for excessive wear,
lubricant leaks, and/or damage
including: tube dents or cracks,
constant velocity joint or
universal joint looseness,
cracked or missing boots, loose
or missing boot clamps, center
bearing excessive looseness,
loose or missing fasteners, and
axle seal leaks.
. Check restraint system
components. See Safety System
Check 063.
. Visually inspect fuel system for
damage or leaks.
. Visually inspect exhaust system
and nearby heat shields for
loose or damaged parts.
. Lubricate body components. See
Exterior Care 0342. .
Check starter switch. See Starter
Switch Check 0284.
. Check parking brake and
automatic transmission park
mechanism. See Park Brake and
P (Park) Mechanism Check
0 285.
. Check accelerator pedal for
damage, high effort, or binding.
Replace if needed.
. Visually inspect gas strut for
signs of wear, cracks, or other
damage. Check the hold open
ability of the strut. If the hold
open ability is low, service the
gas strut. See Gas Strut(s)
0 286.
. Check tire sealant expiration
date, if equipped. See Tire
Sealant and Compressor Kit
0 321.
. Inspect sunroof track and seal,
if equipped. See Sunroof038.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
362 Service and Maintenance
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
UsageFluid/Lubricant
Automatic Transmission DEXRON-VI Automatic Transmission Fluid. Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant.
See Cooling System 0275.
Engine Oil Engine oil meeting the dexos1 specification of the proper SAE viscosity
grade. ACDelco dexos1 full synthetic is recommended. See Engine Oil
0 269.
Hood Latch Assembly, Secondary Latch, Pivots, Spring Anchor, and Release Pawl Lubriplate Lubricant Aerosol (GM Part No. 89021668, in
Canada 89021674) or lubricant meeting requirements of NLGI #2,
Category LB or GC-LB.
Hydraulic Brake System DOT 3 Hydraulic Brake Fluid (GM Part No. 19353126, in Canada 19353127).
Key Lock Cylinders, Hood and Door Hinges Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in
Canada 10953474).
Weatherstrip Conditioning Weatherstrip lubricant (GM Part No. 3634770, in Canada 10953518) or equivalent.
Windshield Washer Automotive windshield washer fluid that meets regional freeze protection requirements.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-13687875) - 2020 - CRC - 10/28/19
Index 395
Child Restraints (cont'd)Older Children . . . . . . . . . . . . . . . . . . 77
Securing . . . . . . . . . . . . . . . . . . . . 93, 95
Systems . . . . . . . . . . . . . . . . . . . . . . . . 81
Circuit Breakers . . . . . . . . . . . . . . . . 289
Cleaning Exterior Care . . . . . . . . . . . . . . . . . 342
Interior Care . . . . . . . . . . . . . . . . . . 346
Climate Control Systems Dual Automatic . . . . . . . . . . . . . . . 165
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Cluster, Instrument . . . . . . . . 115, 119
Collision Damage Repair . . . . . . . 377
Compact Spare Tire . . . . . . . . . . . . 334
Compartments
Storage . . . . . . . . . . . . . . . . . . . . . . . . . 98
Compass . . . . . . . . . . . . . . . . . . . . . . . 110
Compressor Kit, Tire Sealant . . . 321
Connected Services Connections . . . . . . . . . . . . . . . . . . 391
Diagnostics . . . . . . . . . . . . . . . . . . . 392
Navigation . . . . . . . . . . . . . . . . . . . . 390
Connections Connected Services . . . . . . . . . . 391
Control
Hill Descent . . . . . . . . . . . . . . . . . . .211 Control (cont'd)
Traction and Electronic
Stability . . . . . . . . . . . . . . . . . . . . . 209
Control Light Hill Descent . . . . . . . . . . . . . . . . . . 131
Control of a Vehicle . . . . . . . . . . . . . 176
Convex Mirrors . . . . . . . . . . . . . . . . . . 31
Coolant Engine Temperature Gauge . . 123
Engine TemperatureWarning Light . . . . . . . . . . . . . . . 133
Cooling . . . . . . . . . . . . . . . . . . . . 165, 169
Cooling System . . . . . . . . . . . . . . . . . 275
Courtesy Lamps . . . . . . . . . . . . . . . . 160
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . . 376
Cover Cargo . . . . . . . . . . . . . . . . . . . . . . . . . 100
Cruise Control . . . . . . . . . . . . . . . . . . 214 Light . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Cruise Control, Adaptive . . . . . . . . 216
Customer Assistance . . . . . . . . . . . 373
Offices . . . . . . . . . . . . . . . . . . . . . . . . 372
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 373
Customer Information
Publications OrderingInformation . . . . . . . . . . . . . . . . . . 379 Customer Satisfaction
Procedure . . . . . . . . . . . . . . . . . . . . . 370
Cybersecurity . . . . . . . . . . . . . . . . . . . 382
D
Damage Repair, Collision . . . . . . . 377
Danger, Warning, and Caution . . . . 3
Data Collection Infotainment System . . . . . . . . . . 383
OnStar . . . . . . . . . . . . . . . . . . . . . . . 383
Data Recorders, Event . . . . . . . . . 382
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 157
Defensive Driving . . . . . . . . . . . . . . . 175
Delayed Locking . . . . . . . . . . . . . . . . . 19
Diagnostics Connected Services . . . . . . . . . . 392
Distracted Driving . . . . . . . . . . . . . . . 174
Dome Lamps . . . . . . . . . . . . . . . . . . . 160
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . 136
Delayed Locking . . . . . . . . . . . . . . . . 19
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Power Locks . . . . . . . . . . . . . . . . . . . . 19
Drive Belt Routing, Engine . . . . . . 369
Drive Systems All-Wheel Drive . . . . . . . . . . 206, 284
Driver Assistance Systems . . . . . 225

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-13687875) - 2020 - CRC - 10/28/19
396 Index
Driver InformationCenter (DIC) . . . . . . . . . . . . . 137, 139
Driver Mode Control . . . . . . . . . . . . 212
Driving Assistance Systems . . . . . . . . . . 231
Better Fuel Economy . . . . . . . . . 174
Characteristics andTowing Tips . . . . . . . . . . . . . . . . . 246
Defensive . . . . . . . . . . . . . . . . . . . . . 175
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 175
Hill and Mountain Roads . . . . . . 183
If the Vehicle is Stuck . . . . . . . . . 185
Loss of Control . . . . . . . . . . . . . . . 177
Off-Road . . . . . . . . . . . . . . . . . . . . . 178
Off-Road Recovery . . . . . . . . . . . 177
Vehicle Load Limits . . . . . . . . . . . 186
Wet Roads . . . . . . . . . . . . . . . . . . . 182
Winter . . . . . . . . . . . . . . . . . . . . . . . . 184
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . 165
E
Electric Brake Boost . . . . . . . . . . . . 206
Electric Parking Brake . . . . . . . . . . 207
Electric Parking Brake Light . . . . 130
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 258 Electrical System
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 290
Fuses and Circuit Breakers . . . 289
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 293
Overload . . . . . . . . . . . . . . . . . . . . . 289
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 295
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . 385
Engine Air Cleaner/Filter . . . . . . . . . . . . . 273
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 127
Compartment Overview . . . . . . . 264
Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 123
Coolant Temperature Warning Light . . . . . . . . . . . . . . . 133
Cooling System . . . . . . . . . . . . . . . 275
Drive Belt Routing . . . . . . . . . . . . 369
Exhaust . . . . . . . . . . . . . . . . . . . . . . 200
Heater . . . . . . . . . . . . . . . . . . . . . . . . 194
Oil Life System . . . . . . . . . . . . . . . 271
Oil Pressure Light . . . . . . . . . . . . 134
Overheating . . . . . . . . . . . . . . . . . . 279
Power Messages . . . . . . . . . . . . . 146 Engine (cont'd)
Running While Parked . . . . . . . . 201
Starting . . . . . . . . . . . . . . . . . . . . . . . 192
Engine Air Filter Life System . . . . 273
Engine Oil Temperature Gauge . . . . . . . . . . 123
Entry Lighting . . . . . . . . . . . . . . . . . . . 161
Equipment, Towing . . . . . . . . . . . . . 253
Event Data Recorders . . . . . . . . . . 382
Exit Lighting . . . . . . . . . . . . . . . . . . . . 161
Extended Parking . . . . . . . . . . . . . . . 200
Extender, Seat Belt . . . . . . . . . . . . . . 63
Exterior Lamp Controls . . . . . . . . . 155
Exterior Lamps Off Reminder . . . 157
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . 163
F
Filter,
Engine Air Cleaner . . . . . . . . . . . 273
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 157
Flashers, Hazard Warning . . . . . . 159
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 319 Changing . . . . . . . . . . . . . . . . . . . . . 328
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 350
Fluid Automatic Transmission . . . . . . 272
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 282