steering CHEVROLET SUBURBAN 2020 Repair Manual

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13566622) - 2020 - CRC - 4/15/19
Vehicle Care 351
Warning (Continued)
parts. The area damaged by the
tire chains could cause loss of
control and a crash.
Use another type of traction
device only if its manufacturer
recommends it for the vehicle's
tire size combination and road
conditions. Follow that
manufacturer's instructions. To
avoid vehicle damage, drive slow
and readjust or remove the
traction device if it is contacting
the vehicle. Do not spin the
wheels.
If traction devices are used, install
them on the rear tires.
Caution
If the vehicle has P255/70R17,
P265/70R17, or LT265/70R17
size tires, use tire chains only(Continued)
Caution (Continued)
where legal and only when
necessary. Use chains that are
the proper size for the tires. Install
them on the rear tires only. Do not
use chains on the front tires.
Tighten them as tightly as
possible with the ends securely
fastened. Drive slowly and follow
the chain manufacturer's
instructions. If the chains contact
the vehicle, stop and retighten
them. If the contact continues,
slow down until it stops. Driving
too fast or spinning the wheels
with chains on will damage the
vehicle.
If a Tire Goes Flat
It is unusual for a tire to blowout
while driving, especially if the tires
are maintained properly. If air goes
out of a tire, it is much more likely to
leak out slowly. But if there ever is a
blowout, here are a few tips about
what to expect and what to do: If a front tire fails, the flat tire
creates a drag that pulls the vehicle
toward that side. Take your foot off
the accelerator pedal and grip the
steering wheel firmly. Steer to
maintain lane position, and then
gently brake to a stop, well off the
road, if possible.
A rear blowout, particularly on a
curve, acts much like a skid and
may require the same correction as
used in a skid. Stop pressing the
accelerator pedal and steer to
straighten the vehicle. It may be
very bumpy and noisy. Gently brake
to a stop, well off the road,
if possible.
{Warning
Driving on a flat tire will cause
permanent damage to the tire.
Re-inflating a tire after it has been
driven on while severely
underinflated or flat may cause a
blowout and a serious crash.
Never attempt to re-inflate a tire
(Continued)

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13566622) - 2020 - CRC - 4/15/19
370 Vehicle Care
non-conductive material to
prevent any contact with the
negative battery terminal.
7. Shift the transmission to P (Park).
Caution
If the steering column is locked,
vehicle damage may occur.
8. Move the steering wheel to make sure the steering column
is unlocked.
9. Release the parking brake.
10. Keep the ignition key in the towed vehicle in ACC/
ACCESSORY to prevent the
steering column from locking.
If equipped with Keyless
Access, keep the RKE
transmitter outside of the
vehicle, and manually lock
doors. Access the vehicle as if
it has a dead RKE transmitter
battery, by using the key in the
door lock. Disconnecting the Towed Vehicle
Before disconnecting the towed
vehicle:
1. Park on a level surface.
2. Set the parking brake and shift the transmission to P (Park).
3. Connect the battery.
4. Apply the brake pedal.
5. Turn the ignition on with the engine off. Shift the transfer
case out of N (Neutral) to 2
m.
See “Shifting out of
N (Neutral)” underFour-Wheel
Drive 0222. See your dealer if
the transfer case cannot be
shifted out of N (Neutral).
6. Check that the vehicle is in 2
m
by starting the engine and
shifting the transmission to
R (Reverse) and then to D
(Drive). There should be
movement of the vehicle while
shifting.
7. Shift the transmission to P (Park) and turn off the
ignition. 8. Disconnect the vehicle from the
tow vehicle.
9. Release the parking brake.
10. Reset any lost presets. The outside temperature
display will default to 0 °C (32 °
F) but will reset with normal
usage.
Dolly Towing

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13566622) - 2020 - CRC - 4/15/19
Vehicle Care 375
Caution (Continued)
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.
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,
leaks, cracks, chafing, etc.
Visually check constant velocity joint
boots and axle seals for leaks.For 1500 Series vehicles, at least
every other oil change lubricate the
outer tie rod ends.
Control arm ball joints on 1500
Series vehicles are
maintenance-free.
Caution
Lubrication of applicable steering/
suspension points should not be
done unless the temperature is
−12 °C (10 °F) or higher,
or damage could result.
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 not stick or squeak.
Underbody Maintenance
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 power 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.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13566622) - 2020 - CRC - 4/15/19
384 Service and Maintenance
.Inspect brake system. See
Exterior Care 0371.
. Visually inspect steering,
suspension, and chassis
components for damage,
including cracks or tears in the
rubber boots, loose or missing
parts, or signs of wear at least
once a year. See Exterior Care
0 371. Lubricate the suspension
and steering components at
least every other oil change (if
equipped with grease fittings).
. Inspect power steering for
proper attachment, connections,
binding, leaks, cracks,
chafing, etc.
. Visually inspect halfshafts and
drive shafts for excessive wear,
lubricant leaks, and/or damage
including: tube dents or cracks,
constant velocity joint or
universal joint looseness,
cracked or missing boots, loose
or missing boot clamps, center
bearing excessive looseness,
loose or missing fasteners, and
axle seal leaks. .
Check restraint system
components. See Safety System
Check 072.
. Visually inspect fuel system for
damage or leaks.
. Visually inspect exhaust system
and nearby heat shields for
loose or damaged parts.
. Lubricate body components. See
Exterior Care 0371.
. Check starter switch. See Starter
Switch Check 0311.
. Check ignition transmission lock.
See Ignition Transmission Lock
Check 0311.
. Check parking brake and
automatic transmission park
mechanism. See Park Brake and
P (Park) Mechanism Check
0 312.
. Check accelerator pedal for
damage, high effort, or binding.
Replace if needed.
. Visually inspect gas strut for
signs of wear, cracks, or other
damage. Check the hold open ability of the strut. If the hold
open is low, service the gas
strut. See
Gas Strut(s) 0314.
. Inspect sunroof track and seal,
if equipped. See Sunroof042.
. Verify spare tire key lock
operation and lubricate as
needed. See Tire Changing
0 353.
. Visually inspect the spare tire to
ensure that it is tightly stowed
under the vehicle. Push, pull,
and try to turn the tire. If the
spare tire moves, tighten as
necessary. See Tire Changing
0 353.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13566622) - 2020 - CRC - 4/15/19
390 Service and Maintenance
Lamps
Properly working headlamps,
taillamps, and brake lamps are
important to see and be seen on
the road.
.Signs that the headlamps need
attention include dimming, failure
to light, cracking, or damage.
The brake lamps need to be
checked periodically to ensure
that they light when braking.
. With a multi-point inspection,
your dealer can check the lamps
and note any concerns.
Shocks and Struts
Shocks and struts help aid in control
for a smoother ride.
. Signs of wear may include
steering wheel vibration, bounce/
sway while braking, longer
stopping distance, or uneven
tire wear.
. As part of the multi-point
inspection, trained dealer
technicians can visually inspect
the shocks and struts for signs of leaking, blown seals,
or damage, and can advise
when service is needed.
Tires
Tires need to be properly inflated,
rotated, and balanced. Maintaining
the tires can save money and fuel,
and can reduce the risk of tire
failure.
. Signs that the tires need to be
replaced include three or more
visible treadwear indicators; cord
or fabric showing through the
rubber; cracks or cuts in the
tread or sidewall; or a bulge or
split in the tire.
. Trained dealer technicians can
inspect and recommend the right
tires. Your dealer can also
provide tire/wheel balancing
services to ensure smooth
vehicle operation at all speeds.
Your dealer sells and services
name brand tires. Vehicle Care
To help keep the vehicle looking like
new, vehicle care products are
available from your dealer. For
information on how to clean and
protect the vehicle’s interior and
exterior, see
Interior Care 0376 and
Exterior Care 0371.
Wheel Alignment
Wheel alignment is critical for
ensuring that the tires deliver
optimal wear and performance.
. Signs that the alignment may
need to be adjusted include
pulling, improper vehicle
handling, or unusual tire wear.
. Your dealer has the required
equipment to ensure proper
wheel alignment.
Windshield
For safety, appearance, and the
best viewing, keep the windshield
clean and clear.
. Signs of damage include
scratches, cracks, and chips.

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 - 4/24/19
430 Index
HeatedRear Seats . . . . . . . . . . . . . . . . . . . . . 54
Steering Wheel . . . . . . . . . . . . . . . .117
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Heated Mirrors . . . . . . . . . . . . . . . . . . . 38
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . .211
Heating . . . . . . . . . . . . . . . . . . . . 178, 182
High-Beam On Light . . . . . . . . . . . . 143
High-Speed Operation . . . . . . . . . . 338
Hill and Mountain Roads . . . . . . . . 196
Hill Descent Control (HDC) . . . . . 231
Hill Descent Control Light . . . . . . . 141
Hill Start Assist (HSA) . . . . . . . . . . 228
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
How to Wear Seat Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . 64
HVAC . . . . . . . . . . . . . . . . . . . . . . 178, 182
I
Ignition Positions . . . . . . . . . . 205, 207
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . . . 311
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 35 Indicator
Vehicle Ahead . . . . . . . . . . . . . . . . 141
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . 89
Information Publication Ordering . . . . . . . . . . 409
Infotainment . . . . . . . . . . . . . . . . . . . . 177
Infotainment System . . . . . . . . . . . . 413
Instrument Cluster . . . . . . . . . . . . . . 127
Instrument Panel Storage Area . . . . . . . . . . . . . . . . . .110
Instrument Panel Overview . . . . . . . 5
Interior Rearview Mirrors . . . . . . . . . 39
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . . . 363
K
Keyless EntryRemote (RKE) System . . . . . 13, 16
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . .9, 10
L
Labeling, Tire Sidewall . . . . . . . . . . 332
Lamps Auxiliary Roof
Mounted Lamp . . . . . . . . . . . . . . 172 Daytime Running (DRL) . . . . . . 170
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 173
Exterior Controls . . . . . . . . . . . . . . 167
Exterior Lamps Off
Reminder . . . . . . . . . . . . . . . . . . . 169
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . 176
Front Turn Signal . . . . . . . . . . . . . 316
License Plate . . . . . . . . . . . . . . . . . 318
Malfunction Indicator (Check Engine) . . . . . . . . . . . . . 137
On Reminder . . . . . . . . . . . . . . . . . 144
Reading . . . . . . . . . . . . . . . . . . . . . . 174
Lane Change Alert (LCA) . . . . . . . 252
Lane Keep Assist (LKA) . . . . . . . . 254
Lane Keep Assist Light . . . . . . . . . 141
Lap Belt . . . . . . . . . . . . . . . . . . . . . . . . . 72
Lap-Shoulder Belt . . . . . . . . . . . . . . . 66
LATCH System Replacing Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . 104
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . 94
LED Lighting . . . . . . . . . . . . . . . . . . . . 315
Level Control Automatic . . . . . . . . . . . . . . . . . . . . . 232
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-13566622) - 2020 - CRC - 4/24/19
434 Index
Reclining Seatbacks . . . . . . . . . . . . 48
Second Row . . . . . . . . . . . . . . . . . . . . 55
Third Row Seat . . . . . . . . . . . . . . . . . 59
Second Row Seats . . . . . . . . . . . . . . 55
Securing Child Restraints . . . . . . . . . . .104, 106, 107
Security
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 143
OnStar . . . . . . . . . . . . . . . . . . . . . . . 416
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 33
Vehicle Alarm . . . . . . . . . . . . . . . . . . . 33
Service . . . . . . . . . . . . . . . . . . . . . . . . . 185 Accessories andModifications . . . . . . . . . . . . . . . . 285
Doing Your Own Work . . . . . . . . 286
Maintenance Records . . . . . . . . 395
Maintenance, General Information . . . . . . . . . . . . . . . . . . 381
Parts Identification . . . . . . . . . . . . 396
Scheduling Appointments . . . . . 406
Services
Special Application . . . . . . . . . . . 388
Servicing the Airbag . . . . . . . . . . . . . 85
Shift Lock Control Function Check, Automatic
Transmission . . . . . . . . . . . . . . . . . . 311
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 212 Out of Park . . . . . . . . . . . . . . . . . . . 214
Side Blind Zone Alert (SBZA) . . . 252
Signals, Turn and
Lane-Change . . . . . . . . . . . . . . . . . 171
Special Application Services . . . . 388
Specifications and Capacities . . . . . . . . . . . . . . . . . . . . . 397
Speedometer . . . . . . . . . . . . . . . . . . . 131
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . . . 142
Start Assist, Hill . . . . . . . . . . . . . . . . . 228
Start Vehicle, Remote . . . . . . . . . . . 23
Starter Switch Check . . . . . . . . . . . 311
Starting the Engine . . . . . . . . . . . . . 209
Steering . . . . . . . . . . . . . . . . . . . . . . . . 189 Heated Wheel . . . . . . . . . . . . . . . . .117
Wheel Adjustment . . . . . . . . . . . . .116
Wheel Controls . . . . . . . . . . . . . . . .117
Steps Power Assist . . . . . . . . . . . . . . . . . . . 32
Stoplamps and Back-up Lamps
Bulb Replacement . . . . . . . . . . . . 317
Storage Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Storage Areas
Armrest . . . . . . . . . . . . . . . . . . . . . . . . 111
Center Console . . . . . . . . . . . . . . . .112
Convenience Net . . . . . . . . . . . . . .113 Floor Console . . . . . . . . . . . . . . . . .113
Glove Box . . . . . . . . . . . . . . . . . . . . .110
Instrument Panel . . . . . . . . . . . . . .110
Roof Rack System . . . . . . . . . . . . .113
Sunglasses . . . . . . . . . . . . . . . . . . . . 111
Storage Compartments . . . . . . . . . 110
Struts Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
Stuck Vehicle . . . . . . . . . . . . . . . . . . . 198
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 42
Sunglass Storage . . . . . . . . . . . . . . . 111
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Forward CollisionAlert (FCA) . . . . . . . . . . . . . . . . . . 248
Infotainment . . . . . . . . . . . . . 177, 413
Roof Rack . . . . . . . . . . . . . . . . . . . . .113
Systems Driver Assistance . . . . . . . . . . . . . 243
T
Tachometer . . . . . . . . . . . . . . . . . . . . . 131
TaillampsBulb Replacement . . . . . . . . . . . . 317
Text Telephone (TTY) Users . . . . 403
Theft-Deterrent Systems . . . . . . . . . 35