Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/26/22
334 Vehicle Care
If there is no sign of steam, idle the engine
for five minutes while parked. If the warning
is still displayed, turn off the engine until it
cools down.
Engine Fan
If the vehicle has electric cooling fans, the
fans may be heard spinning at low speed
during most everyday driving. The fans may
turn off if no cooling is required. Under
heavy vehicle loading, trailer towing, high
outside temperatures, or operation of the air
conditioning system, the fans may change
to high speed and an increase in fan noise
may be heard. This is normal and indicates
that the cooling system is functioning
properly. The fans will change to low speed
when additional cooling is no longer
required.
The electric engine cooling fans may run
after the engine has been turned. off. This is
normal and no service is required.
Washer Fluid
What to Use
When windshield washer fluid needs to be
added, be sure to read the manufacturer's
instructions before use. Use a fluid that hassufficient protection against freezing in an
area where the temperature may fall below
freezing.
Adding Washer Fluid
The vehicle has a low washer fluid message
on the DIC that comes on when the washer
fluid is low. The message is displayed for
15 seconds at the start of each ignition cycle.
When the WASHER FLUID LOW ADD FLUID
message displays, washer fluid will need to
be added to the windshield washer fluid
reservoir.
Open the cap with the washer symbol on it.
Add washer fluid until the tank is full. See
Engine Compartment Overview
0322 for
reservoir location.
Caution
.Do not use washer fluid that contains
any type of water repellent coating.
This can cause the wiper blades to
chatter or skip.
.Do not use engine coolant (antifreeze)
in the windshield washer. It can
damage the windshield washer system
and paint.
.Do not mix water with ready-to-use
washer fluid. Water can cause the
solution to freeze and damage the
washer fluid tank and other parts of
the washer system.
.When using concentrated washer fluid,
follow the manufacturer instructions
for adding water.
.Fill the washer fluid tank only
three-quarters full when it is very cold.
This allows for fluid expansion if
freezing occurs, which could damage
the tank if it is completely full.
Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/26/22
392 Vehicle Care
Protecting Exterior Bright Metal Moldings
Caution
Failure to clean and protect the bright
metal moldings can result in a hazy
white finish or pitting. This damage
would not be covered by the vehicle
warranty.
The bright metal moldings on the vehicle
are aluminum, chrome or stainless steel. To
prevent damage always follow these
cleaning instructions:
.Be sure the molding is cool to the touch
before applying any cleaning solution.
.Use only approved cleaning solutions for
aluminum, chrome or stainless steel.
Some cleaners are highly acidic or contain
alkaline substances and can damage the
moldings.
.Always dilute a concentrated cleaner
according to the manufacturer’s
instructions.
.Do not use cleaners that are not intended
for automotive use.
.Use a nonabrasive wax on the vehicle
after washing to protect and extend the
molding finish.
Cleaning Exterior Lamps/Lenses,
Emblems, Decals, and Stripes
Use only lukewarm or cold water, a soft
cloth, and a car washing soap to clean
exterior lamps, lenses, emblems, decals, and
stripes. Follow instructions under "Washing
the Vehicle" previously in this section.
Lamp covers are made of plastic, and some
have a UV protective coating. Do not clean
or wipe them when dry.
Do not use any of the following on lamp
covers:
.Abrasive or caustic agents.
.Washer fluids and other cleaning agents
in higher concentrations than suggested
by the manufacturer.
.Solvents, alcohols, fuels, or other harsh
cleaners.
.Ice scrapers or other hard items.
.Aftermarket appearance caps or covers
while the lamps are illuminated, due to
excessive heat generated.
Caution
Failure to clean lamps properly can cause
damage to the lamp cover that would
not be covered by the vehicle warranty.
Caution
Using wax on low gloss black finish
stripes can increase the gloss level and
create a non-uniform finish. Clean low
gloss stripes with soap and water only.
Air Intakes
Clear debris from the air intakes, between
the hood and windshield, when washing the
vehicle.
Shutter System
Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/26/22
Vehicle Care 393
The vehicle may have a shutter system
designed to help improve fuel economy.
Keep the shutter system clear of debris,
snow, and ice. The check engine light may
activate if the shutter system is blocked.
Windshield and Wiper Blades
Clean the outside of the windshield with
glass cleaner.
Clean rubber blades using a lint-free cloth or
paper towel soaked with windshield washer
fluid or a mild detergent. Wash the
windshield thoroughly when cleaning the
blades. Bugs, road grime, sap, and a buildup
of vehicle wash/wax treatments may cause
wiper streaking.
Replace the wiper blades if they are worn or
damaged. Damage can be caused by
extreme dusty conditions, sand, salt, heat,
sun, snow, and ice.
Weatherstrips
Apply weatherstrip lubricant on
weatherstrips to make them last longer, seal
better, and eliminate sticking or squeaking.
Lubricate weatherstrips at least once a year.
Hot, dry climates may require more
frequent lubrication. Black marks fromrubber material on painted surfaces can be
removed by rubbing with a clean cloth. See
Recommended Fluids and Lubricants
0404.
Tires
Use a stiff brush with tire cleaner to clean
the tires.
Caution
Using petroleum-based tire dressing
products on the vehicle may damage the
paint finish and/or tires. When applying a
tire dressing, always wipe off any
overspray from all painted surfaces on
the vehicle.
Wheels and Wheel Trim
Use a soft, clean cloth with mild soap and
water to clean the wheels. After rinsing
thoroughly with clean water, dry with a
soft, clean towel. Once dry, wax as desired.
Caution
Chrome wheels and chrome wheel trim
may be damaged if the vehicle is not
washed after driving on roads that have
been sprayed with magnesium chloride or
calcium chloride. These are used on roads
(Continued)
Caution (Continued)
for conditions such as dust and ice.
Always wash the chrome with soap and
water after exposure.
Caution
To avoid surface damage on wheels and
wheel trim, do not use strong soaps,
chemicals, abrasive polishes, cleaners,
or brushes. Use only GM approved
cleaners. Do not drive the vehicle through
an automatic car wash that uses silicon
carbide tire/wheel cleaning brushes.
Damage could occur and the repairs
would not be covered by the vehicle
warranty.
Brake System
Visually inspect brake lines and hoses for
proper hook-up, binding, leaks, cracks,
chafing, etc. Inspect disc brake pads for wear
and rotors for surface condition. Inspect
drum brake linings/shoes for wear or cracks.
Inspect all other brake parts.
Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/26/22
394 Vehicle Care
Steering, Suspension, and Chassis
Components
Visually inspect steering, suspension, and
chassis components for damaged, loose,
or missing parts or signs of wear at least
once a year.
Inspect power steering for proper
attachment, connections, binding, cut/
punctured tie rod boots that could allow
water intrusion, cracks, chafing, etc.
Visually check constant velocity joint boots
and axle seals for leaks.
Control arm ball joints and outer tie rod
ends are maintenance-free.
Body Component Lubrication
Lubricate all key lock cylinders, hood hinges,
liftgate hinges, steel fuel door hinge and
power assist step hinges, unless the
components are plastic. Applying silicone
grease on weatherstrips with a clean cloth
will make them last longer, seal better, and
eliminate sticking or squeaking.
Underbody MaintenanceCaution
Avoid pressure washing the vehicle frame.
Use of high-pressure washers can result
in removal of corrosion protection and
possible vehicle damage.
At least twice a year, spring and fall, use
plain water to flush any corrosive materials
from the underbody. Take care to
thoroughly clean any areas where mud and
other debris can collect. If equipped with
power assist steps, extend them and then
use a high pressure wash to clean all joints
and gaps.
Do not directly pressure wash the transfer
case and/or front/rear axle output seals.
High pressure water can overcome the seals
and contaminate the fluid. Contaminated
fluid will decrease the life of the transfer
case and/or axles and should be replaced.
Sheet Metal Damage
If the vehicle is damaged and requires sheet
metal repair or replacement, make sure the
body repair shop applies anti-corrosion
material to parts repaired or replaced to
restore corrosion protection. Original manufacturer replacement parts will
provide the corrosion protection while
maintaining the vehicle warranty.
Finish Damage
Quickly repair minor chips and scratches
with touch-up materials available from your
dealer to avoid corrosion. Larger areas of
finish damage can be corrected in your
dealer's body and paint shop.
Chemical Paint Spotting
Airborne pollutants can fall upon and attack
painted vehicle surfaces causing blotchy,
ring-shaped discolorations, and small,
irregular dark spots etched into the paint
surface. See
“Finish Care” previously in this
section.
Interior Care
To prevent dirt particle abrasions, regularly
clean the vehicle's interior. Before using
cleaners, read and follow all safety
instructions on the label. While cleaning the
interior, open the doors and windows to get
proper ventilation. Newspapers or dark
garments can transfer color to the vehicle’s
interior.
Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/25/22
Service and Maintenance 403
Systems, Fluids, and Visible Leak
Inspection
.Engine oil
.Transmission
.Drive axle
.Transfer case
.Engine cooling system
.Power steering, if equipped
.Fuel system
.Windshield washer fluid
Tire Inspection
.Tire pressure, tread depth, and wear
.Rotation, if applicable
.Alignment check, optional
.Reset tire pressure monitor
.Check tire sealant expiration date,
if equipped
.Check spare tire, if equipped
Brakes
.Check brake system
Visible and Functional Inspections
.Seat belt components
.Exhaust system
.Accelerator pedal
.Passenger compartment air filter,
if equipped
.Engine air filter
.Hoses
.Belts
.Shocks and struts
.Steering components
.Axle boots or driveshaft and u-joints
.Compartment lift struts, if equipped
.Floor mats secured, no interference with
pedals
.Horn
.Ignition lock, if equipped
.Starter switch
.Evaporative control system
Lubricate
.Chassis components
Special Application Services
.Severe Commercial Use Vehicles Only:
Lubricate chassis components every oil
change.
.Have underbody flushing service
performed. See "Underbody Maintenance"
in Exterior Care 0390.
Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/25/22
404 Service and Maintenance
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
This maintenance section applies to vehicles with a gasoline engine. If the vehicle has a diesel engine, see“Recommended Fluids and Lubricants”
in the Duramax diesel supplement.
Fluids and lubricants identified below by name or specification, including fluids or lubricants not listed here, can be obtained from your dealer.
Usage Fluid/Lubricant
Automatic Transmission DEXRON ULV Automatic Transmission Fluid.
Chassis Lubrication Lubricant meeting requirements of NLGI #2, Category LB or GC-LB.Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant. See Cooling System
0 329.
Engine Oil Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. See Engine Oil0325.
Front Axle (4WD Only) and Rear Axle. See your dealer. Hydraulic Brake System DOT 4 Hydraulic Brake Fluid.
Key Lock Cylinders, Hood Hinges, Body Door
Hinge Pins, Power Assist Steps, Liftgate Hinge, and Fuel Door Hinge Multi-Purpose Lubricant, Superlube. See your dealer.
Transfer Case (4WD Only) See your dealer.
Weatherstrip Conditioning Weatherstrip lubricant. See your dealer. Windshield Washer Automotive windshield washer fluid that meets regional freeze protection requirements.
Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-16416971) - 2023 - CRC - 4/25/22
434 Index
Fluid (cont'd)Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Forward Collision Alert (FCA) System . . . . . . . . . . . 275
Four Corner Air Suspension Light . . . . . . . . 120
Four Corner Air Suspension System . . . . . . . 231
Four-Wheel Drive . . . . . . . . . . . . . . . . . . . .219, 338
Four-Wheel-Drive
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Frequency Statement
Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 419
Front Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338
Heated and Ventilated Seats . . . . . . . . . . . . 42
Pedestrian Braking (FPB) System . . . . . . . 278
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
Dynamic Management . . . . . . . . . . . . . . . . . 214
Economy, Driving for Better . . . . . . . . . . . 195
Filling a Portable Fuel Container . . . . . . . 287
Filling the Tank . . . . . . . . . . . . . . . . . . . . . . . . 286
Foreign Countries . . . . . . . . . . . . . . . . . . . . . . 286
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Low Fuel Warning Light . . . . . . . . . . . . . . . 122
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . 285
Recommended . . . . . . . . . . . . . . . . . . . . . . . . . 285 Fuel (cont'd)
Top Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285
Full-Size Spare Tire . . . . . . . . . . . . . . . . . . . . . . . 382
Fuses Engine Compartment Fuse Block . . . . . . . 345
Fuses and Circuit Breakers . . . . . . . . . . . . . 344
Instrument Panel Fuse Block . . . . . . . . . . . 349
Rear Compartment Fuse Block . . . . . . . . . 351
G
Garage Door Opener . . . . . . . . . . . . . . . . . . . . . . 132Programming . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Gauges Engine Coolant Temperature . . . . . . . . . . . 109
Engine Oil Pressure . . . . . . . . . . . . . . . . . . . . 108
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Transmission Temperature . . . . . . . . . . . . . 110
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . 107
Voltmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Warning Lights and Indicators . . . . . . . . . 101
General Information Service and Maintenance . . . . . . . . . . . . . . 399
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 319 Glass Replacement . . . . . . . . . . . . . . . . . . . . . . . 340
Global Positioning System (GPS) . . . . . . . . . 163
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 414
Guidance Problems with the Route . . . . . . . . . . . . . . 164
H
Hazard Warning Flashers . . . . . . . . . . . . . . . . 139
Head Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Head-Up Display (HUD) . . . . . . . . . . . . . . . . . . .128
Headlamps
Aiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . . 341
Daytime Running Lamps (DRL) . . . . . . . . . 138
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
High-Beam On Light . . . . . . . . . . . . . . . . . . . 122
High/Low Beam Changer . . . . . . . . . . . . . . 138
Lamps On Reminder . . . . . . . . . . . . . . . . . . . 122
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Steering Wheel . . . . . . . . . . . . . . . . . . . . . . . . . 94
Ventilated Front Seats . . . . . . . . . . . . . . . . . . 42
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186, 189
High-Beam On Light . . . . . . . . . . . . . . . . . . . . . . 122
Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/-
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438 Index
Radio (cont'd)Reception . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Satellite . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Reading Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Rear Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338
Camera Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Climate Control System . . . . . . . . . . . . . . . . 189
Cross Traffic Alert (RCTA) System . . . . . . 274
Heated Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Locking Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Pedestrian Alert . . . . . . . . . . . . . . . . . . . . . . . 273
Seat Infotainment (RSI) System . . . . . . . . 154
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Vision Camera (RVC) . . . . . . . . . . . . . . . . . . . 262
Window Washer/Wiper . . . . . . . . . . . . . . . . . 96
Rearview Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 29 Automatic Dimming . . . . . . . . . . . . . . . . . . . . 29
Reclining Seatbacks . . . . . . . . . . . . . . . . . . . . . . . 39
Recognition Voice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Recommended Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285
Recommended Fluids and Lubricants . . . . . 404
Records Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 406
Recreational Vehicle Towing . . . . . . . . . . . . . 387 Reimbursement Program, GM
Mobility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 414
Remote Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Key Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Vehicle Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Replacement
Glass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Replacement Parts Airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 405
Replacing Airbag System . . . . . . . . . . . . . . . . . . . . . . . . . . 69
LATCH System Parts After a Crash . . . . . . 82
Seat Belt System Parts after a Crash . . . . 59
Reporting Safety Defects
Canadian Government . . . . . . . . . . . . . . . . . 419
General Motors . . . . . . . . . . . . . . . . . . . . . . . . 420
U.S. Government . . . . . . . . . . . . . . . . . . . . . . . 419
Restraints Where to Put . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Retained Accessory Power (RAP) . . . . . . . . . . 212
Reverse Automatic Braking . . . . . . . . . . . . . . 272
Reverse Tilt Mirrors . . . . . . . . . . . . . . . . . . . . . . . 28
Ride Control Systems Magnetic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Roads Driving, Wet . . . . . . . . . . . . . . . . . . . . . . . . . . . 201 Roadside Assistance Program . . . . . . . . . . . . 414
Roof
Rack System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Rotation, Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 365
Routing, Engine Drive Belt . . . . . . . . . . . . . . . 410
Running Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Running the Vehicle While Parked . . . . . . . . 215
S
Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Safety Defects Reporting Canadian Government . . . . . . . . . . . . . . . . . 419
General Motors . . . . . . . . . . . . . . . . . . . . . . . . 420
U.S. Government . . . . . . . . . . . . . . . . . . . . . . . 419
Safety System Check . . . . . . . . . . . . . . . . . . . . . 58
Satellite Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Scheduling Appointments . . . . . . . . . . . . . . . . .415
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52 Buckle To Drive . . . . . . . . . . . . . . . . . . . . . . . . . 53
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Extender . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
How to Wear Seat Belts Properly . . . . . . . 53
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . . . . 55
Reminders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Replacing after a Crash . . . . . . . . . . . . . . . . . 59
Use During Pregnancy . . . . . . . . . . . . . . . . . . 58