engine CHEVROLET TAHOE 2020 Owners Manual

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13566622) - 2020 - CRC - 4/15/19
394 Service and Maintenance
PartGM Part Number ACDelco Part Number
6.2L Engine 12690385PF63E
Passenger Compartment Air Filter 23281440CF188
Spark Plugs 5.3L Engine 1262244141–114
6.2L Engine 1262244141–114
Wiper Blades Front Driver Side –55 cm (21.7 in) 84613732—
Front Passenger Side –55 cm (21.7 in) 84613732—
Rear –33 cm (13.0 in) 22956295—

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13566622) - 2020 - CRC - 4/15/19
396 Technical Data
Technical Data
Vehicle Identification
Vehicle IdentificationNumber (VIN) . . . . . . . . . . . . . . . 396
Service Parts Identification . . . 396
Vehicle Data
Capacities and Specifications . . . . . . . . . . . . . . . 397
Engine Drive Belt Routing . . . . 399
Vehicle Identification
Vehicle Identification
Number (VIN)
This legal identifier is in the front
corner of the instrument panel, on
the driver side of the vehicle. It can
be seen through the windshield from
outside. The Vehicle Identification
Number (VIN) also appears on the
Vehicle Certification and Service
Parts labels and certificates of title
and registration.
Engine Identification
The eighth character in the VIN is
the engine code. This code
identifies the vehicle's engine,
specifications, and replacement parts. See
“Engine Specifications”
under Capacities and Specifications
0 397 for the vehicle's engine code.
Service Parts
Identification
There may be a large barcode on
the certification label on the center
pillar that you can scan for the
following information:
.
Vehicle Identification
Number (VIN)
. Model designation
. Paint information
. Production options
If there is not a large barcode on
this label, then you will find this
same information on a label inside
of the glove box.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13566622) - 2020 - CRC - 4/15/19
Technical Data 397
Vehicle Data
Capacities and Specifications
The following approximate capacities are given in metric and English conversions. SeeRecommended Fluids and
Lubricants 0392 for more information.
Application Capacities
Metric English
Air Conditioning Refrigerant For the air conditioning system refrigerant type and charge amount, see the refrigerant label under thehood. See your dealer for more information.
Engine Cooling System* L83 5.3L Engine 16.8 L 17.8 qt
L86 6.2L Engine 16.8 L 17.8 qt
Engine Oil with Filter 7.6 L 8.0 qt
Fuel Tank Short Wheelbase 98.4 L 26.0 gal
Long Wheelbase 119.2 L 31.5 gal
Transfer Case Fluid 1.5 L 1.6 qt
Wheel Nut Torque 190 Y140 lb ft
All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this
manual. Recheck fluid level after filling.
*Engine cooling system capacity values are based on the entire cooling system and its components.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13566622) - 2020 - CRC - 4/15/19
398 Technical Data
Engine Specifications
EngineVIN CodeSpark Plug Gap
5.3L V8 (L83) C0.95–1.10mm (0.037–
0.043 in)
6.2L V8 (L86) J0.95–1.10mm (0.037–
0.043 in)
Spark plug gaps are preset by the manufacturer. Re-gapping the spark plug is not recommended and can damage
the spark plug.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13566622) - 2020 - CRC - 4/15/19
Technical Data 399
Engine Drive Belt Routing
5.3L/6.2L V8 Engines

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13566622) - 2020 - CRC - 4/15/19
Customer Information 409
.Vehicle make, model, and
model year
. Vehicle Identification
Number (VIN)
. Insurance company and policy
number
. General description of the
damage to the other vehicle
Choose a reputable repair facility
that uses quality replacement parts.
See “Collision Parts” earlier in this
section.
If the airbag has inflated, see What
Will You See after an Airbag
Inflates? 079.
Managing the Vehicle Damage
Repair Process
In the event that the vehicle requires
damage repairs, GM recommends
that you take an active role in its
repair. If you have a pre-determined
repair facility of choice, take the
vehicle there, or have it towed there.
Specify to the facility that any
required replacement collision parts
be original equipment parts, either
new Genuine GM parts or recycled original GM parts. Remember,
recycled parts will not be covered by
the GM vehicle warranty.
Insurance pays the bill for the repair,
but you must live with the repair.
Depending on your policy limits,
your insurance company may
initially value the repair using
aftermarket parts. Discuss this with
the repair professional, and insist on
Genuine GM parts. Remember,
if the vehicle is leased, you may be
obligated to have the vehicle
repaired with Genuine GM parts,
even if your insurance coverage
does not pay the full cost.
If another party's insurance
company is paying for the repairs,
you are not obligated to accept a
repair valuation based on that
insurance company's collision policy
repair limits, as you have no
contractual limits with that company.
In such cases, you can have control
of the repair and parts choices as
long as the cost stays within
reasonable limits.
Publication Ordering
Information
Service Manuals
Service manuals have the diagnosis
and repair information on the
engine, transmission, axle,
suspension, brakes, electrical
system, steering system, body, etc.
Customer Literature
Owner
’s manuals are written
specifically for owners and are
intended to provide basic
operational information about the
vehicle. The owner ’s manual
includes the Maintenance Schedule
for all models.
Customer literature publications
available for purchase include
owner ’s manuals, warranty
manuals, infotainment manuals, and
portfolios. Portfolios include an
owner ’s manual, warranty manual,
infotainment manual, if applicable,
and zip lock bag or pouch.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13566622) - 2020 - CRC - 4/15/19
412 Customer Information
Vehicle Data
Recording and
Privacy
The vehicle has a number of
computers that record information
about the vehicle’s performance and
how it is driven or used. For
example, the vehicle uses computer
modules to monitor and control
engine and transmission
performance, to monitor the
conditions for airbag deployment
and deploy them in a crash, and,
if equipped, to provide antilock
braking to help the driver control the
vehicle. These modules may store
data to help the dealer technician
service the vehicle or to help GM
improve safety or features. Some
modules may also store data about
how the vehicle is operated, such as
rate of fuel consumption or average
speed. These modules may retain
personal preferences, such as radio
presets, seat positions, and
temperature settings.
Cybersecurity
GM collects information about the
use of your vehicle including
operational and safety related
information. We collect this
information to provide, evaluate,
improve, and troubleshoot our
products and services and to
develop new products and services.
The protection of vehicle electronics
systems and customer data from
unauthorized outside electronic
access or control is important to
GM. GM maintains appropriate
security standards, practices,
guidelines and controls aimed at
defending the vehicle and the
vehicle service ecosystem against
unauthorized electronic access,
detecting possible malicious activity
in related networks, and responding
to suspected cybersecurity incidents
in a timely, coordinated and effective
manner. Security incidents could
impact your safety or compromise
your private data. To minimize
security risks, please do not connect
your vehicle electronic systems to
unauthorized devices or connectyour vehicle to any unknown or
untrusted networks (such as
Bluetooth, WIFI or similar
technology). In the event you
suspect any security incident
impacting your data or the safe
operation of your vehicle, please
stop operating your vehicle and
contact your dealer.
Event Data Recorders
This vehicle is equipped with an
event data recorder (EDR). The
main purpose of an EDR is to
record, in certain crash or near
crash-like situations, such as an air
bag deployment or hitting a road
obstacle, data that will assist in
understanding how a vehicle’s
systems performed. The EDR is
designed to record data related to
vehicle dynamics and safety
systems for a short period of time,
typically 30 seconds or less. The
EDR in this vehicle is designed to
record such data as:
.
How various systems in your
vehicle were operating;

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13566622) - 2020 - CRC - 4/15/19
416 OnStar
Security
If equipped, OnStar provides these
services:
.With Stolen Vehicle Assistance,
OnStar Advisors can use GPS to
pinpoint the vehicle and help
authorities quickly recover it.
. With Remote Ignition Block,
if equipped, OnStar can block
the engine from being restarted.
. With Stolen Vehicle Slowdown,
if equipped, OnStar can work
with law enforcement to
gradually slow the vehicle down.
Theft Alarm Notification
If equipped, if the doors are locked
and the vehicle alarm sounds, a
notification by text, e-mail, or phone
call will be sent. If the vehicle is
stolen, an OnStar Advisor can work
with authorities to recover the
vehicle.
OnStar Additional
Information
In-Vehicle Audio Messages
Audio messages may play important
information at the following times:
.Prior to vehicle purchase. Press
Qto set up an account.
. After change in ownership and
at 90 days.
Transferring Service
PressQto request account transfer
eligibility information. The Advisor
can cancel or change account
information.
Selling/Transferring the
Vehicle
Call 1-888-4ONSTAR
(1-888-466-7827) immediately to
terminate your OnStar or connected
services if the vehicle is disposed
of, sold, transferred, or if the
lease ends.
Reactivation for Subsequent
Owners
PressQand follow the prompts to
speak to an Advisor as soon as
possible. The Advisor will update
vehicle records and explain OnStar
or connected service options.
How OnStar Service Works
Automatic Crash Response,
Emergency Services, Crisis Assist,
Stolen Vehicle Assistance, Remote
Services, and Roadside Assistance
are available on most vehicles. Not
all OnStar services are available
everywhere or on all vehicles. For
more information, a full description
of OnStar services, system
limitations, and OnStar User Terms,
Privacy Statement, and Software
Terms:
. Call 1-888-4ONSTAR
(1-888-466-7827).
. See www.onstar.com (U.S.).
. See www.onstar.ca (Canada).

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-13566622) - 2020 - CRC - 4/24/19
Index 425
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . . . 285
Accessory Power . . . . . . . . . . . . . . . 212
Active Fuel Management . . . . . . . 214
Adaptive Cruise Control . . . . . . . . 235
Add-On Electrical Equipment . . . 282
Additional Information OnStar . . . . . . . . . . . . . . . . . . . . . . . 416
Additional Maintenance
and Care . . . . . . . . . . . . . . . . . . . . . . 389
Adjustable Throttle and Brake Pedal . . . . . . . . . . . . . . . . . . . 204
Adjustments
Lumbar, Front Seats . . . . . . . . . . . . 48
Air Cleaner/Filter, Engine . . . . . . . 300
Air Conditioning . . . . . . . . . . . 178, 182
Air Filter, Passenger Compartment . . . . . . . . . . . . . . . . . 184
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 183
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . 86
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . . . 79
Passenger Sensing System . . . . 81
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 79 What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . . . 79
When Should an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 78
Where Are the Airbags? . . . . . . . . 76
Airbags Adding Equipment to the
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . 85
Passenger Status Indicator . . . 136
Readiness Light . . . . . . . . . . . . . . 136
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . 85
System Check . . . . . . . . . . . . . . . . . . 74
Alarm Vehicle Security . . . . . . . . . . . . . . . . 33
Alert
Lane Change . . . . . . . . . . . . . . . . . 252
Side Blind Zone (SBZA) . . . . . . 252
All-Season Tires . . . . . . . . . . . . . . . . 331
All-Terrain Tires . . . . . . . . . . . . . . . . . 332
Antilock Brake System (ABS) . . . 227 Warning Light . . . . . . . . . . . . . . . . . 140
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . 371

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-13566622) - 2020 - CRC - 4/24/19
426 Index
Interior . . . . . . . . . . . . . . . . . . . . . . . . 376
Armrest Storage . . . . . . . . . . . . . . . . 111
Assistance Program,
Roadside . . . . . . . . . . . . . . . . . . . . . . 404
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . 248
Assistance Systems for
Parking and Backing . . . . . . . . . . 244
Automatic Door Locks . . . . . . . . . . . . . . . . . . . . . 25
Emergency Braking (AEB) . . . . 250
Headlamp System . . . . . . . . . . . . 170
Level Control . . . . . . . . . . . . . . . . . 232
Transmission . . . . . . . . . . . . . . . . . 216
Transmission Fluid . . . . . . 296, 299
Automatic Transmission
Manual Mode . . . . . . . . . . . . . . . . . 219
Shift Lock Control FunctionCheck . . . . . . . . . . . . . . . . . . . . . . . .311
Auxiliary Roof Mounted Lamp . . . . . . . . . . 172
Axle, Front . . . . . . . . . . . . . . . . . . . . . . 310
Axle, Rear . . . . . . . . . . . . . . . . . . . . . . 311
B
Battery Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . 176 Load Management . . . . . . . . . . . . 175
Power Protection . . . . . . . . . . . . . 176
Battery - North America . . . . 309, 363
Blade Replacement, Wiper . . . . . 312
Blind Spot Mirrors . . . . . . . . . . . . . . . 38
Brake Pedal and Adjustable
Throttle . . . . . . . . . . . . . . . . . . . . . . 204
System Warning Light . . . . . . . . 139
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 307 Antilock . . . . . . . . . . . . . . . . . . . . . . . 227
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 228
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 308
Parking . . . . . . . . . . . . . . . . . . . . . . . 228
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 189 Automatic
Emergency (AEB) . . . . . . . . . . . 250
Break-In, New Vehicle . . . . . . . . . . 204
Bulb Replacement Fog Lamps . . . . . . . . . . . . . . . . . . . 316
Front Turn Signal Lamps . . . . . 316
Halogen Bulbs . . . . . . . . . . . . . . . . 315
Headlamp Aiming . . . . . . . . . . . . . 315
Headlamps . . . . . . . . . . . . . . 315, 316
High Intensity Discharge(HID) Lighting . . . . . . . . . . . . . . . 315
License Plate Lamps . . . . . . . . . 318 Taillamps, Turn Signal,
Stoplamps, and Back-up
Lamps . . . . . . . . . . . . . . . . . . . . . . 317
Buying New Tires . . . . . . . . . . . . . . . 346
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 120
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 285
California Proposition
65 Warning . . . . . . . . . .285, 309, 363,
Back Cover
Canadian Vehicle Owners . . . . . . . . 2
Capacities and Specifications . . . . . . . . . . . . . . . . . 397
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 215
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . 27
Winter Driving . . . . . . . . . . . . . . . . 197
Cargo Tie-Downs . . . . . . . . . . . . . . . . . . . . .113
Caution, Danger, and Warning . . . . 2
Center Console Storage . . . . . . . . 112
Center Seat . . . . . . . . . . . . . . . . . . . . . 47
Chains, Tire . . . . . . . . . . . . . . . . . . . . 350