overheating GMC ACADIA 2023 User Guide

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16402009) - 2023 - CRC - 3/28/22
276 Vehicle Care
6. Verify coolant level after the engine isshut off and the coolant is cold.
If necessary, repeat coolant fill procedure
Steps 1–6.
If the coolant still is not at the proper
level when the system cools down again,
see your dealer.
Caution
If the pressure cap is not tightly installed,
coolant loss and engine damage may
occur. Be sure the cap is properly and
tightly secured.
Automatic Coolant Service Fill (2.0L L4
Engine Only)
If equipped, this feature assists in filling and
removing air from the cooling system after
service of components or when coolant is
added after being too low.
To activate the fill and air removal process:
1. With a cold system, disconnect the vent line from the port near the cap on the
surge tank. Add coolant to the indicated
mark on the surge tank.
2. Reconnect the vent line to the surge tank and replace the cap on the
surge tank. 3. Connect the vehicle to a battery charger.
4. Put the vehicle in Service Mode. See
Ignition Positions 0204.
5. Turn off the air conditioning.
6. Set the parking brake.
7. At the same time, press the accelerator and the brake for automatic transmission
vehicles for two seconds, then release.
At the end of the cycle, check the coolant
level in the surge tank and add coolant, if it
is low. Turn off the vehicle, allow the Engine
Control Module (ECM) to go to sleep, about
two minutes, and repeat steps 3-7.
Listen for pump activation and movement of
the control valves while watching the level
of the tank. If the tank empties, turn the
ignition off, carefully remove the surge tank
cap, refill to the indicated mark and repeat
steps 3-6. The fill and air removal process
will run for approximately 10 minutes.
Engine Overheating
The vehicle has several indicators to warn of
the engine overheating. There is an engine coolant temperature
gauge on the instrument cluster. See
Engine
Coolant Temperature Gauge 0103. 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
0 354.
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.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16402009) - 2023 - CRC - 3/28/22
Vehicle Care 293
Wheels and Tires
Tires
Every new GM vehicle has high-quality
tires made by a leading tire
manufacturer. See the warranty manual
for information regarding the tire
warranty and where to get service. For
additional information refer to the tire
manufacturer.
{Warning
.Poorly maintained and improperly
used tires are dangerous.
.Overloading the tires can cause
overheating as a result of too
much flexing. There could be a
blowout and a serious crash. See
Vehicle Load Limits0200.
.Underinflated tires pose the same
danger as overloaded tires. The
resulting crash could cause serious
injury. Check all tires frequently to
(Continued)
Warning (Continued)
maintain the recommended
pressure. Tire pressure should be
checked when the tires are cold.
.Overinflated tires are more likely
to be cut, punctured, or broken by
a sudden impact —such as when
hitting a pothole. Keep tires at the
recommended pressure.
.Worn or old tires can cause a
crash. If the tread is badly worn,
replace them.
.Replace any tires that have been
damaged by impacts with
potholes, curbs, etc.
.Improperly repaired tires can cause
a crash. Only your dealer or an
authorized tire service center
should repair, replace, dismount,
and mount the tires.
(Continued)
Warning (Continued)
.Do not spin the tires in excess of
56 km/h (35 mph) on slippery
surfaces such as snow, mud, ice,
etc. Excessive spinning may cause
the tires to explode.
See Tire Pressure for High-Speed
Operation 0300 for inflation pressure
adjustment for high-speed driving.
All-Season Tires
This vehicle may come with all-season tires.
These tires are designed to provide good
overall performance on most road surfaces
and weather conditions. Original equipment
tires designed to GM's specific tire
performance criteria have a TPC specification
code molded onto the sidewall. Original
equipment all-season tires can be identified
by the last two characters of this TPC code,
which will be “MS.”
Consider installing winter tires on the
vehicle if frequent driving on snow or
ice-covered roads is expected. All-season tires
provide adequate performance for most
winter driving conditions, but they may not

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16402009) - 2023 - CRC - 3/28/22
Vehicle Care 299
Tire Pressure
Tires need the correct amount of air
pressure to operate effectively.
{Warning
Neither tire underinflation nor
overinflation is good. Underinflated
tires, or tires that do not have
enough air, can result in:
.Tire overloading and overheating,
which could lead to a blowout
.Premature or irregular wear
.Poor handling
.Reduced fuel economy for
internal combustion engine
vehicles
.Reduced range for electric vehicles
(Continued)
Warning (Continued)
Overinflated tires, or tires that have
too much air, can result in:
.Unusual wear
.Poor handling
.Rough ride
.Needless damage from road
hazards
The Tire and Loading Information label
on the vehicle indicates the original
equipment tires and the correct cold
tire inflation pressures. The
recommended pressure is the minimum
air pressure needed to support the
vehicle's maximum load carrying
capacity. See Vehicle Load Limits 0200.
How the vehicle is loaded affects
vehicle handling and ride comfort.
Never load the vehicle with more
weight than it was designed to carry. When to Check
Check the pressure of the tires once a
month or more. Do not forget the
spare, if the vehicle has one. The
compact spare cold tire pressure should
be at 420 kPa (60 psi). See
Compact
Spare Tire 0323.
How to Check
Use a good quality pocket-type gauge
to check tire pressure. Proper tire
inflation cannot be determined by
looking at the tire. Check the tire
inflation pressure when the tires are
cold, meaning the vehicle has not been
driven for at least three hours or no
more than 1.6 km (1 mi).
Remove the valve cap from the tire
valve stem. Press the tire gauge firmly
onto the valve to get a pressure
measurement. If the cold tire inflation
pressure matches the recommended
pressure on the Tire and Loading
Information label, no further adjustment

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-16402009) - 2023 - CRC - 3/28/22
374 Index
DrivingAssistance Systems . . . . . . . . . . . . . . . . . . . . 237
Better Fuel Economy . . . . . . . . . . . . . . . . . . . . 191
Characteristics and Towing Tips . . . . . . . . 249
Defensive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Distracted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Hill and Mountain Roads . . . . . . . . . . . . . . 198
If the Vehicle is Stuck . . . . . . . . . . . . . . . . . 200
Impaired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . 194
Off-Road . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 193
Vehicle Load Limits . . . . . . . . . . . . . . . . . . . . 200
Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Dual
Automatic Climate Control System . . . . 183
E
ElectricBrake Boost . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Parking Brake Light . . . . . . . . . . . . . . . . . . . . 108
Electrical Equipment, Add-On . . . . . . . . . . . . . . . . . . . . 259
System Overload . . . . . . . . . . . . . . . . . . . . . . 283
Electrical System Engine Compartment Fuse Block . . . . . . . 285 Electrical System (cont'd)
Fuses and Circuit Breakers . . . . . . . . . . . . . 285
Instrument Panel Fuse Block . . . . . . . . . . . 288
Rear Compartment Fuse Block . . . . . . . . . 290
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364
Engine
Air Cleaner/Filter . . . . . . . . . . . . . . . . . . . . . . . 271
Air Filter Life System . . . . . . . . . . . . . . . . . . . 271
Check Light (Malfunction Indicator) . . . . 106
Compartment Overview . . . . . . . . . . . . . . . . 265
Coolant Temperature Gauge . . . . . . . . . . . 103
Coolant Temperature Warning Light . . . . 111
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 272
Drive Belt Routing . . . . . . . . . . . . . . . . . . . . . 350
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Oil Life System . . . . . . . . . . . . . . . . . . . . . . . . 270
Oil Pressure Light . . . . . . . . . . . . . . . . . . . . . . . 112
Oil Temperature Gauge . . . . . . . . . . . . . . . . 102
Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
Power Messages . . . . . . . . . . . . . . . . . . . . . . . 125
Running While Parked . . . . . . . . . . . . . . . . . . 211
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Equipment, Towing . . . . . . . . . . . . . . . . . . . . . . 255
Event Data Recorders . . . . . . . . . . . . . . . . . . . . 361
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133 Extended Parking . . . . . . . . . . . . . . . . . . . . . . . . 210
Extender, Seat Belt . . . . . . . . . . . . . . . . . . . . . . . .53
Exterior
Lamp Controls . . . . . . . . . . . . . . . . . . . . . . . . . 128
Lamps Off Reminder . . . . . . . . . . . . . . . . . . . 129
Lighting Battery Saver . . . . . . . . . . . . . . . . . 134
F
FilterEngine Air Cleaner . . . . . . . . . . . . . . . . . . . . . . 271
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Flashers, Hazard Warning . . . . . . . . . . . . . . . . . 131
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
Fluid Automatic Transmission . . . . . . . . . . . . . . . 270
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
Fog Lamp Light Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Forward Collision Alert (FCA) System . . . . . . . . . . . 237
Frequency Statement
Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-16402009) - 2023 - CRC - 3/28/22
378 Index
OnStar (cont'd)Additional Information . . . . . . . . . . . . . . . . . 365
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363
OnStar Emergency . . . . . . . . . . . . . . . . . . . . . . . 364
OnStar Security . . . . . . . . . . . . . . . . . . . . . . . . . . 364
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Overheating, Engine . . . . . . . . . . . . . . . . . . . . . 276
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136 Instrument Panel . . . . . . . . . . . . . . . . . . . . . . . . 4
P
ParkAssist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232, 235
Shifting Into . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Shifting Out of . . . . . . . . . . . . . . . . . . . . . . . . 209
Parking
Brake and P (Park) MechanismCheck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
Extended . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Over Things That Burn . . . . . . . . . . . . . . . . . 210
Parking or Backing
Assistance Systems . . . . . . . . . . . . . . . . . . . . 232
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . 105
Compartment Air Filter . . . . . . . . . . . . . . . . 188
Sensing System . . . . . . . . . . . . . . . . . . . . . . . . . 59
Pedestrian Ahead Indicator . . . . . . . . . . . . . . .110 Perchlorate Materials Requirements,
California . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Phone Apple CarPlay and Android Auto . . . . . . . 168
Bluetooth . . . . . . . . . . . . . . . . . . . . . . . . . 164, 165
Port USB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Positioning Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Power Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Outlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Protection, Battery . . . . . . . . . . . . . . . . . . . . . 134
Retained Accessory (RAP) . . . . . . . . . . . . . . 208
Seat Adjustment . . . . . . . . . . . . . . . . . . . . . . . . 37
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Pregnancy, Using Seat Belts . . . . . . . . . . . . . . .52
Privacy Vehicle Data Recording . . . . . . . . . . . . . . . . 360
Problems with Route Guidance . . . . . . . . . . .158
Program
Courtesy Transportation . . . . . . . . . . . . . . . 356
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . . . 247
Proposition 65 Warning California . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Proposition 65 Warning, California . . . . . . . 324
Publication Ordering Information . . . . . . . . 358
R
Radiator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Radio AM-FM Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Data System (RDS) . . . . . . . . . . . . . . . . . . . . . 143
Frequency Statement . . . . . . . . . . . . . . . . . . 359
HD Radio Technology . . . . . . . . . . . . . . . . . . 142
Reception . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Satellite . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Reading Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Rear
Camera Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Climate Control System . . . . . . . . . . . . . . . . 187
Cross Traffic Alert (RCTA) System . . . . . . 237
Heated Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Vision Camera (RVC) . . . . . . . . . . . . . . . . . . . 232
Window Washer/Wiper . . . . . . . . . . . . . . . . . 91
Rearview Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 28 Automatic Dimming . . . . . . . . . . . . . . . . . . . . 28
Reclining Seatbacks . . . . . . . . . . . . . . . . . . . . . . . 38
Recognition Voice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Recommended Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
Recommended Fluids and Lubricants . . . . . 343