2020 CHEVROLET TAHOE engine coolant

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13566622) - 2020 - CRC - 4/15/19
Introduction 3
{Danger
Danger indicates a hazard with a
high level of risk which will result
in serious injury or death.
{Warning
Warning indicates a hazard that
could result in injury or death.
Caution
Caution indicates a hazard that
could result in property or vehicle
damage.
A circle with a slash through it is a
safety symbol which means“Do
Not,” “Do not do this,” or“Do not let
this happen.”
Symbols
The vehicle has components and
labels that use symbols instead of
text. Symbols are shown along with
the text describing the operation or
information relating to a specific
component, control, message,
gauge, or indicator.
M: Shown when the owner ’s
manual has additional instructions
or information.
*: Shown when the service
manual has additional instructions
or information.
0: Shown when there is more
information on another page —
“see page.” Vehicle Symbol Chart
Here are some additional symbols
that may be found on the vehicle
and what they mean. See the
features in this manual for
information.
u:
Air Conditioning System
G:Air Conditioning Refrigerant Oil
9:Airbag Readiness Light
!:Antilock Brake System (ABS)
$:Brake System Warning Light
9:Dispose of Used Components
Properly
P: Do Not Apply High Pressure
Water
B: Engine Coolant Temperature
_: Flame/Fire Prohibited
H:Flammable
[:Forward Collision Alert
R: Fuse Block Cover Lock
Location
+: Fuses
j:ISOFIX/LATCH System Child
Restraints

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13566622) - 2020 - CRC - 4/15/19
Keys, Doors, and Windows 23
Remote Vehicle Start
If equipped with the remote start
feature, the climate control system
will come on when the vehicle is
started remotely depending on the
outside temperature.
The rear defog and heated and
ventilated seats, if equipped, may
also come on. SeeHeated and
Ventilated Front Seats 053 and
Vehicle Personalization 0154.
Laws in some communities may
restrict the use of remote starters.
Check local regulations for any
requirements on remote starting of
vehicles.
Do not use remote start if the
vehicle is low on fuel. The vehicle
may run out of fuel.
The vehicle cannot be remote
started if:
. The key is in the ignition (Key
Access) or the transmitter is in
the vehicle (Keyless Access).
. The hood is not closed. .
There is an emission control
system malfunction and the
malfunction indicator lamp is on.
. The hazard flashers are on.
. Two remote vehicle starts or a
start with an extension have
already been used.
. The vehicle is not in P (Park).
. The vehicle is not off.
The engine will turn off during a
remote vehicle start if:
. The coolant temperature gets
too high.
. The oil pressure gets low.
The RKE transmitter range may be
reduced while the vehicle is running.
Other conditions can affect the
performance of the transmitter. See
Remote Keyless Entry (RKE)
System 013 or
Vehicle Personalization 0154.
Starting the Engine Using Remote
Start
1. Press and release
Q. 2. Immediately press and hold
/
until the turn signal lamps flash
or for at least four seconds.
When the vehicle starts, the
parking lamps will turn on. The
doors will be locked and the
climate control system may
come on.
The engine will continue to run
for 15 minutes. Repeat
Steps 1 and 2 for a 15-minute
time extension.
Turn the ignition on to operate the
vehicle.
Extending Engine Run Time
The engine run time can be
extended by 15 minutes, for a total
of 30 minutes, if during the first
15 minutes Steps 1 and 2 are
repeated while the engine is still
running. An extension can be
requested, 30 seconds after
starting.
A maximum of two remote starts,
or a single start with an extension,
is allowed between ignition cycles.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13566622) - 2020 - CRC - 4/15/19
Instruments and Controls 115
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . 116
Steering Wheel Controls . . . . . . 117
Heated Steering Wheel . . . . . . . 117
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Windshield Wiper/Washer . . . . 117
Rear Window Wiper/Washer . . . . . . . . . . . . . . . . . . . . . . 119
Compass . . . . . . . . . . . . . . . . . . . . . 120
Clock . . . . . . . . . . . . . . . . . . . . . . . . . 120
Power Outlets . . . . . . . . . . . . . . . . 121
Wireless Charging . . . . . . . . . . . . 123
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . 126
Instrument Cluster . . . . . . . . . . . . 127
Speedometer . . . . . . . . . . . . . . . . . 131
Odometer . . . . . . . . . . . . . . . . . . . . . 131
Trip Odometer . . . . . . . . . . . . . . . . 131
Tachometer . . . . . . . . . . . . . . . . . . . 131
Fuel Gauge . . . . . . . . . . . . . . . . . . . 132
Engine Oil Pressure
Gauge . . . . . . . . . . . . . . . . . . . . . . 133 Engine Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 134
Voltmeter Gauge . . . . . . . . . . . . . 134
Seat Belt Reminders . . . . . . . . . 135
Airbag Readiness Light . . . . . . . 136
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . 136
Charging System Light . . . . . . . 137
Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . 137
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . . 139
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . 140
Tow/Haul Mode Light . . . . . . . . . 140
Hill Descent Control Light . . . . 141
Lane Keep Assist (LKA) Light . . . . . . . . . . . . . . . . . . . . . . . . 141
Vehicle Ahead Indicator . . . . . . 141
Traction Off Light . . . . . . . . . . . . . 141
StabiliTrak OFF Light . . . . . . . . . 142
Traction Control System (TCS)/ StabiliTrak Light . . . . . . . . . . . . . 142
Tire Pressure Light . . . . . . . . . . . 142
Low Fuel Warning Light . . . . . . 143
Security Light . . . . . . . . . . . . . . . . . 143
High-Beam On Light . . . . . . . . . . 143
Front Fog Lamp Light . . . . . . . . . 144
Lamps On Reminder . . . . . . . . . 144
Cruise Control Light . . . . . . . . . . 144 Door Ajar Light . . . . . . . . . . . . . . . 144
Information Displays
Driver Information Center (DIC)
(Base Level) . . . . . . . . . . . . . . . . 145
Driver Information Center (DIC) (Uplevel) . . . . . . . . . . . . . . . . . . . . 147
Head-Up Display (HUD) . . . . . . 150
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . 153
Engine Power Messages . . . . . 154
Vehicle Speed Messages . . . . . 154
Vehicle Personalization
Vehicle Personalization . . . . . . . 154
Universal Remote System
Universal Remote System . . . . 163
Universal Remote System Programming . . . . . . . . . . . . . . . 163
Universal Remote System Operation . . . . . . . . . . . . . . . . . . . 165

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13566622) - 2020 - CRC - 4/15/19
Instruments and Controls 133
Engine Oil Pressure
Gauge
Metric
English
The engine oil pressure gauge
shows the engine oil pressure
in kPa (kilopascals) or psi (pounds
per square inch) when the engine is
running.
Oil pressure can vary with engine
speed, outside temperature, coolant
temperature, and oil viscosity.
On some models, the oil pump will
vary engine oil pressure according
to engine needs. Oil pressure may
change quickly as the engine speed
or load varies. This is normal. If the
oil pressure warning light or Driver
Information Center (DIC) message indicates oil pressure outside the
normal operating range, check the
vehicle's oil as soon as possible.
See
Engine Oil 0293.
Caution
Lack of proper engine oil
maintenance can damage the
engine. Driving with the engine oil
low can also damage the engine.
The repairs would not be covered
by the vehicle warranty. Check
the oil level as soon as possible.
Add oil if required, but if the oil
level is within the operating range
and the oil pressure is still low,
have the vehicle serviced. Always
follow the maintenance schedule
for changing engine oil.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13566622) - 2020 - CRC - 4/15/19
134 Instruments and Controls
Engine Coolant
Temperature Gauge
Metric
English
This gauge measures the
temperature of the vehicle's engine
coolant.
While driving under normal
operating conditions, if the needle
moves into the red warning area,
the engine is too hot. Pull off the
road, stop the vehicle, and turn off
the engine as soon as possible.
Voltmeter Gauge
When the ignition is on, this gauge
indicates the battery voltage.
When the engine is running, this
gauge shows the condition of the
charging system. The gauge can
transition from a higher to lower or a
lower to higher reading. This is
normal. If the vehicle is operating
outside the normal operating range,
the charging system light comes on.
See Charging System Light 0137
for more information. The voltmeter
gauge may also read lower when in
fuel economy mode. This is normal.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13566622) - 2020 - CRC - 4/24/19
Driving and Operating 265
The vehicle can tow in D (Drive).
Shift the transmission to a lower
gear if the transmission shifts too
often under heavy loads and/or hilly
conditions.
When towing at higher altitudes,
engine coolant will boil at a lower
temperature than at lower altitudes.
If the engine is turned off
immediately after towing at high
altitude on steep uphill grades, the
vehicle could show signs similar to
engine overheating. To avoid this,
let the engine run, preferably on
level ground, with the transmission
in P (Park) for a few minutes before
turning the engine off. If the
overheat warning comes on, see
Engine Overheating0305.
Parking on Hills
{Warning
To prevent serious injury or death,
always park your vehicle and
trailer on a level surface when
possible. When parking your vehicle and your
trailer on a hill:
1. Press the brake pedal, but do not shift into P (Park) yet. Turn
the wheels into the curb if
facing downhill or into traffic if
facing uphill.
2. Have someone place chocks under the trailer wheels.
3. When the wheel chocks are in place, gradually release the
brake pedal to allow the chocks
to absorb the load of the trailer.
4. Reapply the brake pedal. Then apply the parking brake and
shift into P (Park).
5. Release the brake pedal.
Leaving After Parking on a Hill
1. Apply and hold the brake pedal.
.Start the engine.
. Shift into a gear.
. Release the parking brake.
2. Let up on the brake pedal. 3. Drive slowly until the trailer is
clear of the chocks.
4. Stop and have someone pick up and store the chocks.
Launching and Retrieving
a Boat
Backing the Trailer into the Water
{Warning
.Have all passengers get out
of the vehicle before
backing onto the sloped part
of the ramp. Lower the
driver and passenger side
windows before backing
onto the ramp. This will
provide a means of escape
in the unlikely event the
vehicle slides into the water.
. If the boat launch surface is
slippery, have the driver
remain in the vehicle with
the brake pedal applied
while the boat is being
launched. The boat launch
(Continued)

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13566622) - 2020 - CRC - 4/15/19
Vehicle Care 289
1. Positive (+) Terminal. SeeJump Starting - North America
0363.
2. Battery - North America 0309.
3. Coolant Surge Tank and Pressure Cap. See Cooling
System 0301.
4. Engine Air Cleaner/Filter 0300.
5. Automatic Transmission Dipstick. See “How to Check
Automatic Transmission Fluid”
under Automatic Transmission
Fluid (10-Speed Transmission)
0 299 or
Automatic Transmission Fluid
(6-Speed Transmission) 0296.
6. Remote Negative (–) Location (Out of View). See Jump
Starting - North America 0363.
7. Engine Cooling Fans (Out of View). See Cooling System
0 301.
8. Engine Oil Fill Cap. See “When
to Add Engine Oil” under
Engine Oil 0293. 9. Engine Oil Dipstick. See
“Checking Engine Oil” under
Engine Oil 0293.
10. Windshield Washer Fluid Reservoir. See “Adding Washer
Fluid” under Washer Fluid
0 306.
11. Brake Fluid Reservoir. See Brake Fluid 0308.
12. Engine Compartment Fuse
Block 0320.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13566622) - 2020 - CRC - 4/15/19
Vehicle Care 291
1. Positive (+) Terminal. SeeJump Starting - North America
0363.
2. Battery - North America 0309.
3. Coolant Surge Tank and Pressure Cap. See Cooling
System 0301.
4. Engine Air Cleaner/Filter 0300.
5. Remote Negative (–) Location (Out of View). See Jump
Starting - North America 0363.
6. Engine Cooling Fans (Out of View). See Cooling System
0 301.
7. Engine Oil Fill Cap. See “When
to Add Engine Oil” under
Engine Oil 0293.
8. Engine Oil Dipstick. See “Checking Engine Oil” under
Engine Oil 0293.
9. Windshield Washer Fluid Reservoir. See “Adding Washer
Fluid” under Washer Fluid
0 306.
10. Brake Fluid Reservoir. See Brake Fluid 0308. 11.
Engine Compartment Fuse
Block 0320.