2017 GMC ACADIA LIMITED engine overheat

GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
2017 - crc - 3/30/16
222 Vehicle Care
7. Start the engine and let it rununtil the upper radiator hose
feels warm. Any time during
this procedure, watch out for
the engine cooling fans.
8. If the coolant level inside the radiator filler neck is low, add
more of the proper DEX-COOL
coolant mixture through the
filler neck until the level is back
up to the base of the filler neck.
9. Replace the pressure cap tightly. At any time during this
procedure if coolant begins to
flow out of the filler neck,
reinstall the pressure cap.
Caution
If the pressure cap is not tightly
installed, coolant loss and
possible engine damage may
occur. Be sure the cap is properly
and tightly secured.
Engine Overheating
The vehicle has several indicators
to warn of engine overheating.
There is an engine coolant
temperature gauge on the
instrument panel cluster. See
Engine Coolant Temperature
Gauge 0106.
The vehicle may also display an
ENGINE OVERHEATED IDLE
ENGINE and ENGINE
OVERHEATED STOP ENGINE
message in the Driver Information
Center (DIC). See Engine Cooling
System Messages 0125.
You may decide not to lift the hood
when this warning appears, but
instead get service help right away.
See Roadside Assistance
Program 0308.
If you do decide to lift the hood,
make sure the vehicle is parked on
a level surface.
Then check to see if the engine
cooling fans are running. If the
engine is overheating, both fans should be running. If they are not,
do not continue to run the engine
and have the vehicle serviced.
Caution
Running the engine without
coolant may cause damage or a
fire. Vehicle damage would not be
covered by the vehicle warranty.
See
Overheated Engine
Protection Operating Mode 0223
for information on driving to a
safe place in an emergency.
If Steam Is Coming from the
Engine Compartment
{Warning
Steam from an overheated engine
can burn you badly, even if you
just open the hood. Stay away
from the engine if you see or hear
steam coming from it. Turn it off
and get everyone away from the
vehicle until it cools down. Wait
(Continued)

GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
2017 - crc - 3/30/16
Vehicle Care 223
Warning (Continued)
until there is no sign of steam or
coolant before you open
the hood.
If you keep driving when the
vehicles engine is overheated,
the liquids in it can catch fire. You
or others could be badly burned.
Stop the engine if it overheats,
and get out of the vehicle until the
engine is cool.
SeeOverheated Engine
Protection Operating Mode 0223
for information on driving to a
safe place in an emergency.
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.
. Tows a trailer.
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 temperature overheat gauge is
no longer in the overheat zone or an
overheat warning no longer
displays, the vehicle can be driven.
Continue to drive the vehicle slow
for about 10 minutes. Keep a safe
vehicle distance from the car in front
of you. 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. Also, see
“Overheated
Engine Protection Operating Mode”
next in this section.
Overheated Engine
Protection
Operating Mode
This emergency operating mode lets
the vehicle be driven to a safe place
in an emergency situation. If an
overheated engine condition exists,
an overheat protection mode which
alternates firing groups of cylinders
helps prevent engine damage. In
this mode, there is a significant loss
in power and engine performance.
The temperature gauge indicates an
overheat condition exists. Driving
extended distances and/or towing a
trailer in the overheat protection
mode should be avoided.

GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
2017 - crc - 3/30/16
224 Vehicle Care
Caution
After driving in the overheated
engine protection operating
mode, the engine oil will be
severely degraded. Any repairs
performed before the engine is
cool may cause engine damage.
Allow the engine to cool before
attempting any repair. Repair the
cause of coolant loss, change the
oil, and reset the oil life system.
SeeEngine Oil 0213.
Power Steering Fluid
The power steering fluid reservoir is
under the engine cover on the
passenger side of the vehicle. See
Engine Compartment Overview
0212 for reservoir location.
When to Check Power Steering
Fluid
It is not necessary to regularly
check power steering fluid unless
you suspect there is a leak in the
system or you hear an unusual
noise. A fluid loss in this system
could indicate a problem. Have the
system inspected and repaired.
How to Check Power Steering
Fluid
To check the power steering fluid:
1. Turn the key off and let the engine compartment
cool down.
2. Remove the engine cover. See Engine Cover 0213.
3. Wipe the cap and the top of the reservoir clean.
4. Unscrew the cap and wipe the dipstick with a clean rag.
5. Replace the cap and completely tighten it.
6. Remove the cap again and look at the fluid level on the
dipstick. The fluid level should be
somewhere between the MAX and
MIN line on the dipstick in room
temperature. If the fluid is on or
below the MIN line, add fluid close
to the MAX line.
What to Use
To determine what kind of fluid to
use, see
Recommended Fluids and
Lubricants 0298. Always use the
proper fluid.
Caution
Use of the incorrect fluid may
damage the vehicle and the
damages may not be covered by
the vehicle warranty. Always use
the correct fluid listed in
Recommended Fluids and
Lubricants 0298.
Washer Fluid
What to Use
When adding windshield washer
fluid, be sure to read the
manufacturer's instructions before

GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
2017 - crc - 3/30/16
Vehicle Care 233
Windshield Wipers
If the wiper motor overheats due to
heavy snow or ice, the windshield
wipers will stop until the motor cools
and will then restart.
Although the circuit is protected
from electrical overload, overload
due to heavy snow or ice may
cause wiper linkage damage.
Always clear ice and heavy snow
from the windshield before using the
windshield wipers.
If the overload is caused by an
electrical problem and not snow or
ice, be sure to get it fixed.
Fuses and Circuit
Breakers
The wiring circuits in your vehicle
are protected from short circuits by
a combination of fuses, circuit
breakers and fusible thermal links.
This greatly reduces the chance of
fires caused by electrical problems.Look at the silver-colored band
inside the fuse. If the band is broken
or melted, replace the fuse. Be sure
you replace a bad fuse with a new
one of the identical size and rating.
Fuses of the same amperage can
be temporarily borrowed from
another fuse location, if a fuse goes
out. Replace the fuse as soon as
you can.
Engine Compartment
Fuse Block
The underhood fuse block is in the
engine compartment, on the
passenger side of the vehicle.
Lift the cover for access to the fuse/
relay block.
Caution
Spilling liquid on any electrical
component on the vehicle may
damage it. Always keep the
covers on any electrical
component.
To remove fuses, hold the end of
the fuse between your thumb and
index finger and pull straight out.

GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
2017 - crc - 3/30/16
Index 331
Electrical System (cont'd)Fuses and Circuit Breakers . . . 233
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 239
Overload . . . . . . . . . . . . . . . . . . . . . 232
Emergency OnStar
®. . . . . . . . . . . . . . . . . . . . . . 319
Engine Air Cleaner/Filter . . . . . . . . . . . . . 217
Check and Service Engine
Soon Light . . . . . . . . . . . . . . . . . . 109
Compartment Overview . . . . . . . 212
Coolant . . . . . . . . . . . . . . . . . . . . . . . 219
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 106
Coolant Temperature Warning Light . . . . . . . . . . . . . . . .113
Cooling System . . . . . . . . . . . . . . . 218
Cooling System Messages . . . 125
Cover . . . . . . . . . . . . . . . . . . . . . . . . . 213
Drive Belt Routing . . . . . . . . . . . . 303
Exhaust . . . . . . . . . . . . . . . . . . . . . . 178
Heater . . . . . . . . . . . . . . . . . . . . . . . . 174
Oil Life System . . . . . . . . . . . . . . . 216
Oil Messages . . . . . . . . . . . . . . . . . 126
Oil Pressure Light . . . . . . . . . . . . .114
Overheated Protection Operating Mode . . . . . . . . . . . . . 223 Engine (cont'd)
Overheating . . . . . . . . . . . . . . . . . . 222
Power Messages . . . . . . . . . . . . . 126
Running While Parked . . . . . . . . 178
Starting . . . . . . . . . . . . . . . . . . . . . . . 173
Entry Lighting . . . . . . . . . . . . . . . . . . . 147
Equipment, Towing . . . . . . . . . . . . . 205
Event Data Recorders . . . . . . . . . . 316
Extender, Safety Belt . . . . . . . . . . . . 60
Exterior Lamp Controls . . . . . . . . . 143
F
Features Memory . . . . . . . . . . . . . . . . . . . . . . . . . 11
Filter, Engine Air Cleaner . . . . . . . . . . . 217
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 144
Flashers, Hazard Warning . . . . . . 144
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 261 Changing . . . . . . . . . . . . . . . . . . . . . 262
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 286
Fluid Automatic Transmission . . . . . . 216
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 226
Power Steering . . . . . . . . . . . . . . . 224
Washer . . . . . . . . . . . . . . . . . . . . . . . 224
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 145
Folding Mirrors . . . . . . . . . . . . . . . . . . 37 Forward Collision Alert
(FCA) System . . . . . . . . . . . . . . . . . 192
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 314
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . .115
Front Seats
Heated and Cooled . . . . . . . . . . . . . 48
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 Additives . . . . . . . . . . . . . . . . . . . . . 198
Economy Driving . . . . . . . . . . . . . . . 22
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 199
Filling the Tank . . . . . . . . . . . . . . . 198
Foreign Countries . . . . . . . . . . . . 198
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 105
Requirements, California . . . . . 197
System Messages . . . . . . . . . . . . 126
Fuses Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 233
Fuses and Circuit Breakers . . . 233
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 239

GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
2017 - crc - 3/30/16
334 Index
Messages (cont'd)Engine Power . . . . . . . . . . . . . . . . 126
Fuel System . . . . . . . . . . . . . . . . . . 126
Key and Lock . . . . . . . . . . . . . . . . . 127
Lamp . . . . . . . . . . . . . . . . . . . . . . . . . 127
Object Detection System . . . . . 127
Ride Control System . . . . . . . . . . 129
Security . . . . . . . . . . . . . . . . . . . . . . 129
Service Vehicle . . . . . . . . . . . . . . . 130
Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Transmission . . . . . . . . . . . . . . . . . 131
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 123
Vehicle Reminder . . . . . . . . . . . . . 132
Vehicle Speed . . . . . . . . . . . . . . . . 132
Washer Fluid . . . . . . . . . . . . . . . . . 132
Mirrors Automatic Dimming . . . . . . . . . . . . . 37
Automatic DimmingRearview . . . . . . . . . . . . . . . . . . . . . . 38
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 36
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 37
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 37
Park Tilt . . . . . . . . . . . . . . . . . . . . . . . . 38
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Mirrors, Interior Rearview . . . . . . . . 38
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 250N
NavigationOnStar®. . . . . . . . . . . . . . . . . . . . . . 320
Net, Convenience . . . . . . . . . . . . . . . 95
New Vehicle Break-In . . . . . . . . . . . 171
O
Object Detection System Messages . . . . . . . . . . . . . . . . . . . . . 127
Odometer . . . . . . . . . . . . . . . . . . . . . . . 105
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 163
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 213
Engine Oil Life System . . . . . . . 216
Messages . . . . . . . . . . . . . . . . . . . . 126
Pressure Light . . . . . . . . . . . . . . . . .114
Older Children, Restraints . . . . . . . 73
Online Owner Center . . . . . . . . . . . 307
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 317
OnStar
®Additional
Information . . . . . . . . . . . . . . . . . . . . 323
OnStar
®Connections . . . . . . . . . . . 320
OnStar®Diagnostics . . . . . . . . . . . . 322
OnStar®Emergency . . . . . . . . . . . . 319
OnStar®Navigation . . . . . . . . . . . . . 320
OnStar®Overview . . . . . . . . . . . . . . 318
OnStar®Security . . . . . . . . . . . . . . . 319 Operating Mode
Overheated Engine
Protection . . . . . . . . . . . . . . . . . . . 223
Operation Fog Lamps . . . . . . . . . . . . . . . . . . . 145
Ordering Service Publications . . . . . . . . . . 313
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . 101
Overheated Engine Protection Operating Mode . . . . 223
Overheating, Engine . . . . . . . . . . . . 222
P
Parade Dimming . . . . . . . . . . . . . . . . 148
Park Shifting Into . . . . . . . . . . . . . . . . . . . 176
Shifting Out of . . . . . . . . . . . . . . . . 177
Tilt Mirrors . . . . . . . . . . . . . . . . . . . . . . 38
Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . 183
Brake and P (Park)
Mechanism Check . . . . . . . . . . 229
Over Things That Burn . . . . . . . 177
Parking Assist . . . . . . . . . . . . . . . . . . 190
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . . 108
Passenger Compartment Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 158