overheating CHEVROLET TAHOE 2023 User Guide

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/26/22
Vehicle Care 333
If the decision is made to lift the hood,
make sure the vehicle is parked on a level
surface. SeeRoadside Assistance Program
0 414.
Check to see if the engine cooling fan(s) are
running. If the engine is overheating, the
fans should be running. If they are 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, (Continued)
Warning (Continued)
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
The ENGINE OVERHEATED STOP ENGINE or
the ENGINE OVERHEATED IDLE ENGINE
message, along with a low coolant
condition, can indicate a serious problem.
If there is an engine overheat warning, but
no steam is 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; seeTrailer Towing0292.
If the ENGINE OVERHEATED STOP ENGINE or
the ENGINE OVERHEATED IDLE ENGINE
message appears with no sign of steam, try
this for a minute or so: 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 overheat zone or an
overheat warning no longer displays, the
vehicle can be driven. Continue to drive the
vehicle slowly for about 10 minutes. Keep a
safe vehicle 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 still no sign of steam and the
vehicle is equipped with an engine driven
cooling fan, push down the accelerator until
the engine speed is about twice as fast as
normal idle speed for at least five minutes
while the vehicle is parked. If the warning is
still there, turn off the engine and get
everyone out of the vehicle until it
cools down.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/26/22
Vehicle Care 353
FusesUsage
F47 LH CINCH Latch –Left Hand
Cinch Latch
F48 Power Seat Recline Module
F49 Lift Glass F50 Driver Power Seat F51 Power Liftgate Module
F52 Passenger Power Seat
Relays Usage
K53 –
K54 –
K55 L/GLASS
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 Limits 0205.
.Underinflated tires pose the same
danger as overloaded tires. The
resulting crash could cause serious
injury. Check all tires frequently to
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.
(Continued)
Warning (Continued)
.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.
.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 0359 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

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/26/22
358 Vehicle Care
Treadwear Indicators:Narrow bands,
sometimes called wear bars, that show
across the tread of a tire when only
1.6 mm (1/16 in) of tread remains. See
When It Is Time for New Tires 0366.
UTQGS (Uniform Tire Quality Grading
Standards)
:A tire information system
that provides consumers with ratings
for a tire's traction, temperature, and
treadwear. Ratings are determined by
tire manufacturers using government
testing procedures. The ratings are
molded into the sidewall of the tire.
See Uniform Tire Quality Grading 0368.
Vehicle Capacity Weight
:The number
of designated seating positions
multiplied by 68 kg (150 lbs) plus the
rated cargo load. See Vehicle Load
Limits 0205.
Vehicle Maximum Load on the Tire
:
Load on an individual tire due to curb
weight, accessory weight, occupant
weight, and cargo weight.
Vehicle Placard
:A label permanently
attached to a vehicle showing the
vehicle's capacity weight and the original equipment tire size and
recommended inflation pressure. See
“Tire and Loading Information Label”
under
Vehicle Load Limits 0205.
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
Overinflated tires, or tires that have
too much air, can result in:
(Continued)
Warning (Continued)
.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.
For additional information regarding
how much weight the vehicle can carry,
and an example of the Tire and Loading
Information label, see Vehicle Load
Limits 0205. How the vehicle is loaded
affects vehicle handling and ride
comfort. Never load the vehicle with
more weight than it was designed to
carry.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-16416971) - 2023 - CRC - 4/25/22
Index 433
Driver (cont'd)Information Center (DIC) . . . . . . . . . . . 123, 126
Mode Control . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Mode Control Light . . . . . . . . . . . . . . . . . . . . . 119
Teen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
Driving Assistance Systems . . . . . . . . . . . . . . . . . . . . 275
Better Fuel Economy . . . . . . . . . . . . . . . . . . . 195
Characteristics and Towing Tips . . . . . . . . 288
Defensive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Distracted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Hill and Mountain Roads . . . . . . . . . . . . . . 202
If the Vehicle is Stuck . . . . . . . . . . . . . . . . . 204
Impaired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . 198
Off-Road . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 197
Vehicle Load Limits . . . . . . . . . . . . . . . . . . . . 205
Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Dual
Automatic Climate Control System . . . . 186
Dynamic Fuel Management . . . . . . . . . . . . . . .214
E
Electric Brake Boost . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . . 223 Electric (cont'd)
Parking Brake Light . . . . . . . . . . . . . . . . . . . . . 116
Electrical Equipment, Add-On . . . . . . . . . . . . . . . . . . . . 316
System Overload . . . . . . . . . . . . . . . . . . . . . . 343
Electrical System Engine Compartment Fuse Block . . . . . . . 345
Fuses and Circuit Breakers . . . . . . . . . . . . . 344
Instrument Panel Fuse Block . . . . . . . . . . . 349
Rear Compartment Fuse Block . . . . . . . . . 351
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 423
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . . . . . . 328
Air Filter Life System . . . . . . . . . . . . . . . . . . 328
Check Light (Malfunction Indicator) . . . . . 114
Compartment Overview . . . . . . . . . . . . . . . . 322
Coolant Temperature Gauge . . . . . . . . . . . 109
Coolant Temperature Warning Light . . . . 119
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 329
Drive Belt Routing . . . . . . . . . . . . . . . . . . . . . 410
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
Oil Life System . . . . . . . . . . . . . . . . . . . . . . . . 326
Oil Pressure Gauge . . . . . . . . . . . . . . . . . . . . 108
Oil Pressure Light . . . . . . . . . . . . . . . . . . . . . . . 121
Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . 332
Power Messages . . . . . . . . . . . . . . . . . . . . . . . 132 Engine (cont'd)
Running While Parked . . . . . . . . . . . . . . . . . 215
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Equipment, Towing . . . . . . . . . . . . . . . . . . . . . . 296
Event Data Recorders . . . . . . . . . . . . . . . . . . . . .421
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Extended Parking . . . . . . . . . . . . . . . . . . . . . . . . .214
Extender, Seat Belt . . . . . . . . . . . . . . . . . . . . . . . 58
Exterior Lamp Controls . . . . . . . . . . . . . . . . . . . . . . . . . 136
Lamps Off Reminder . . . . . . . . . . . . . . . . . . . . 137
Lighting Battery Saver . . . . . . . . . . . . . . . . . 142
F
FanEngine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
Filter Engine Air Cleaner . . . . . . . . . . . . . . . . . . . . . 328
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .138
Flashers, Hazard Warning . . . . . . . . . . . . . . . . 139
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372
Floor Console Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 397
Fluid
Automatic Transmission . . . . . . . . . . . . . . . 327

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-16416971) - 2023 - CRC - 4/25/22
Index 437
Net, Convenience . . . . . . . . . . . . . . . . . . . . . . . . . 92
New Vehicle Break-In . . . . . . . . . . . . . . . . . . . . 208
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Off-Road
Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325
Engine Oil Life System . . . . . . . . . . . . . . . . . 326
Engine Oil Pressure Gauge . . . . . . . . . . . . . 108
Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Older Children, Restraints . . . . . . . . . . . . . . . . . 70
Online Account . . . . . . . . . . . . . . . . . . . . . . . . . . .413
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .421 Additional Information . . . . . . . . . . . . . . . . . 423
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 422
OnStar Emergency . . . . . . . . . . . . . . . . . . . . . . . 423
OnStar Security . . . . . . . . . . . . . . . . . . . . . . . . . . 423
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Overheating, Engine . . . . . . . . . . . . . . . . . . . . . 332
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144 Instrument Panel . . . . . . . . . . . . . . . . . . . . . . . . 5
P
Park
Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262, 269
Shifting Into . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
Shifting Out of . . . . . . . . . . . . . . . . . . . . . . . . 213
Parking Brake and P (Park) MechanismCheck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339
Extended . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Over Things That Burn . . . . . . . . . . . . . . . . . 214
Parking Assist Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Parking or Backing Assistance Systems . . . . . . . . . . . . . . . . . . . . 262
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . 113
Compartment Air Filter . . . . . . . . . . . . . . . . . 191
Sensing System . . . . . . . . . . . . . . . . . . . . . . . . . 65
Pedestrian Ahead Indicator . . . . . . . . . . . . . . . 118
Perchlorate Materials Requirements,
California . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319
Phone Apple CarPlay andAndroid Auto . . . . . . . . . . . . . . . . . . . . 174, 175
Bluetooth . . . . . . . . . . . . . . . . . . . . . 166, 167, 170
Port USB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153 Positioning
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Power Assist Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Outlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Protection, Battery . . . . . . . . . . . . . . . . . . . . . 142
Retained Accessory (RAP) . . . . . . . . . . . . . . 212
Seat Adjustment . . . . . . . . . . . . . . . . . . . . . . . . 38
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Pregnancy, Using Seat Belts . . . . . . . . . . . . . . 58
Privacy Vehicle Data Recording . . . . . . . . . . . . . . . . 420
Problems with Route Guidance . . . . . . . . . . 164
Program Courtesy Transportation . . . . . . . . . . . . . . . 416
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . . . 285
Proposition 65 Warning California . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Proposition 65 Warning, California . . . . . . . 383
Publication Ordering Information . . . . . . . . 418
R
Radiator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329
Radio
AM-FM Radio . . . . . . . . . . . . . . . . . . . . . 149, 150
Frequency Statement . . . . . . . . . . . . . . . . . . 419