
GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-15170041) - 2022 - CRC - 10/6/21
284 Vehicle Care
Engine Overheating
The vehicle has several indicators to warn of
the engine overheating.
There is an engine coolant temperature
gauge on the instrument cluster. SeeEngine
Coolant Temperature Gauge 0105. 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
0 368.
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.
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.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-15170041) - 2022 - CRC - 10/6/21
388 Index
Driving (cont'd)If the Vehicle is Stuck . . . . . . . . . . . . . . . . . 209
Impaired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . 203
Off-Road . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 203
Vehicle Load Limits . . . . . . . . . . . . . . . . . . . . 209
Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
E
Electric Brake Boost . . . . . . . . . . . . . . . . . . . . . . 224
Electric Parking Brake . . . . . . . . . . . . . . . . . . . . 225
Electric Parking Brake Light . . . . . . . . . . . . . . .110
Electrical Equipment, Add-On . . . . . . . . . . . . 268
Electrical SystemEngine Compartment Fuse Block . . . . . . . 293
Fuses and Circuit Breakers . . . . . . . . . . . . . 292
Instrument Panel Fuse Block . . . . . . . . . . . 296
Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291
Rear Compartment Fuse Block . . . . . . . . . 298
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 378
Engine
Air Cleaner/Filter . . . . . . . . . . . . . . . . . . . . . . 278
Check Light (Malfunction Indicator) . . . . 108 Engine (cont'd)
Compartment Overview . . . . . . . . . . . . . . . . 272
Coolant Temperature Gauge . . . . . . . . . . . 105
Coolant Temperature Warning Light . . . . 113
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 280
Drive Belt Routing . . . . . . . . . . . . . . . . . . . . . 364
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Oil Life System . . . . . . . . . . . . . . . . . . . . . . . . 277
Oil Pressure Light . . . . . . . . . . . . . . . . . . . . . . . 114
Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Power Messages . . . . . . . . . . . . . . . . . . . . . . . 124
Running While Parked . . . . . . . . . . . . . . . . . 220
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Engine Air Filter Life System . . . . . . . . . . . . . 278
Engine Oil Temperature Gauge . . . . . . . . . . . . . . . . . . . . 104
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Equipment, Towing . . . . . . . . . . . . . . . . . . . . . . 264
Event Data Recorders . . . . . . . . . . . . . . . . . . . . 375
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Extended Parking . . . . . . . . . . . . . . . . . . . . . . . . 219
Extender, Seat Belt . . . . . . . . . . . . . . . . . . . . . . . 54
Exterior Lamp Controls . . . . . . . . . . . . . . . . . . . . 132
Exterior Lamps Off Reminder . . . . . . . . . . . . . 133
Exterior Lighting Battery Saver . . . . . . . . . . .138
F
Filter, Engine Air Cleaner . . . . . . . . . . . . . . . . . . . . . 278
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Flashers, Hazard Warning . . . . . . . . . . . . . . . . . 135
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345
Fluid Automatic Transmission . . . . . . . . . . . . . . . 278
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285
Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Forward Collision Alert (FCA) System . . . . 246
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Heated and Ventilated . . . . . . . . . . . . . . . . . . 42
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
Economy, Driving for Better . . . . . . . . . . . 200
Filling a Portable Fuel Container . . . . . . . 257

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-15170041) - 2022 - CRC - 10/6/21
Index 391
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Low Fuel Warning Light . . . . . . . . . . . . . . . . . . 115
Lower Anchors and Tethers forChildren (LATCH System) . . . . . . . . . . . . . . . . .72
Lumbar Adjustment . . . . . . . . . . . . . . . . . . . . . . . 39 Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353
Maintenance Schedule . . . . . . . . . . . . . . . . . . . 348 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356
Malfunction Indicator Lamp . . . . . . . . . . . . . . 108
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Map Data Updates . . . . . . . . . . . . . . . . . . . . . . . 163
Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Media Avoiding Untrusted Devices . . . . . . . . . . . . 148
Memory Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Messages Engine Power . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Vehicle Speed . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Mirror Rear Camera . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Mirrors
Automatic Dimming . . . . . . . . . . . . . . . . . . . . 28
Automatic Dimming Rearview . . . . . . . . . . 29
Convex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Folding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Heated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Manual Rearview . . . . . . . . . . . . . . . . . . . . . . . 29
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Tilt in Reverse . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Mirrors, Interior Rearview . . . . . . . . . . . . . . . . . 28
Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229 Driver Control . . . . . . . . . . . . . . . . . . . . . . . . . 229
Monitor System, Tire Pressure . . . . . . . . . . . 309
Multi-band Antenna . . . . . . . . . . . . . . . . . . . . . 148
N
Navigation Connected Services . . . . . . . . . . . . . . . . . . . . 382
Destination . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Using the System . . . . . . . . . . . . . . . . . . . . . . 152
Navigation Symbols . . . . . . . . . . . . . . . . . . . . . . 155
New Vehicle Break-In . . . . . . . . . . . . . . . . . . . . . 212
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Off-Road . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203 Oil
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
Engine Oil Life System . . . . . . . . . . . . . . . . . 277
Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Older Children, Restraints . . . . . . . . . . . . . . . . . 65
Online Owner Center . . . . . . . . . . . . . . . . . . . . 367
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376
OnStar Additional Information . . . . . . . . . . . 379
OnStar Emergency . . . . . . . . . . . . . . . . . . . . . . . 378
OnStar Overview . . . . . . . . . . . . . . . . . . . . . . . . . 377
OnStar Security . . . . . . . . . . . . . . . . . . . . . . . . . . 378
Operation Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Overheating, Engine . . . . . . . . . . . . . . . . . . . . . 284
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Instrument Panel . . . . . . . . . . . . . . . . . . . . . . . . 4
P
ParkShifting Into . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
Shifting Out of . . . . . . . . . . . . . . . . . . . . . . . . 219
Park Assist . . . . . . . . . . . . . . . . . . . . . . . . . . .241, 244
Parking Brake and P (Park) Mechanism
Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
Extended . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219