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210 Driving and Operating
{Warning
The LKA system does not continuously
steer the vehicle. It may not keep the
vehicle in the lane or give a Lane
Departure Warning (LDW) alert, even if a
lane marking is detected.
The LKA and LDW systems may not:
.Provide an alert or enough steering
assist to avoid a lane departure or
crash.
.Detect lane markings under poor
weather or visibility conditions. This
can occur if the windshield or
headlamps are blocked by dirt, snow,
or ice, if they are not in proper
condition, or if the sun shines directly
into the camera.
.Detect road edges.
.Detect lanes on winding or hilly roads.
If LKA only detects lane markings on one
side of the road, it will only assist or
provide an LDW alert when approaching
the lane on the side where it has
detected a lane marking. Even with LKA
and LDW, you must steer the vehicle. (Continued)
Warning (Continued)
Always keep your attention on the road
and maintain proper vehicle position
within the lane, or vehicle damage,
injury, or death could occur. Always keep
the windshield, headlamps, and camera
sensors clean and in good repair. Do not
use LKA in bad weather conditions.
{Warning
Using LKA while towing a trailer or on
slippery roads could cause loss of control
of the vehicle and a crash. Turn the
system off.
How the System Works
The LKA camera sensor is on the windshield
ahead of the rearview mirror.
To turn LKA on and off, press
Aon the
center stack.
When on,
Ais white and changes green
if LKA is available to assist and provide LDW
alerts. It may assist by gently turning the
steering wheel and display
Aas amber
if the vehicle approaches a detected lane marking without using a turn signal in that
direction. It may also provide an LDW alert
by flashing
Aamber as the lane
marking is crossed. Additionally, there may
be three beeps on the right or left,
depending on the lane departure direction.
Take Steering
The LKA system does not continuously steer
the vehicle. If LKA does not detect active
driver steering, an alert, chime, or DIC
message may be provided. Move the
steering wheel to dismiss.
When the System Does Not Seem to
Work Properly
The system performance may be
affected by:
.Close vehicles ahead.
.Sudden lighting changes, such as when
driving through tunnels.
.Banked roads.
.Roads with poor lane markings, such as
two-lane roads.
If the LKA system is not functioning
properly when lane markings are clearly
visible, cleaning the windshield may help.

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Vehicle Care 215
Vehicle Care
General Information
General Information . . . . . . . . . . . . . . . . . . . 216
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . . . . . . 216
Accessories and Modifications . . . . . . . . . 216
Vehicle Checks
Doing Your Own Service Work . . . . . . . . . 216
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Engine Compartment Overview . . . . . . . . 219
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
Engine Oil Life System . . . . . . . . . . . . . . . . . 222
Automatic Transmission Fluid . . . . . . . . . . 223
Engine Air Filter Life System . . . . . . . . . . . 223
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . 223
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 225
Engine Overheating . . . . . . . . . . . . . . . . . . . . 227
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
Battery - North America . . . . . . . . . . . . . . . 230
Starter Switch Check . . . . . . . . . . . . . . . . . . . 231
Automatic Transmission Shift Lock Control Function Check . . . . . . . . . . . . . . . 231
Park Brake and P (Park) Mechanism Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Wiper Blade Replacement . . . . . . . . . . . . . 232 Windshield Replacement . . . . . . . . . . . . . . . 233
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . . . . . . . 234
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . 234
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . 235
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Headlamps, Front Turn Signal,
Sidemarker, and Parking Lamps . . . . . . 235
Taillamps, Turn Signal, Sidemarker, Stoplamps, and Back-Up Lamps . . . . . . 236
Electrical System
Electrical System Overload . . . . . . . . . . . . . 237
Fuses and Circuit Breakers . . . . . . . . . . . . . 238
Engine Compartment Fuse Block . . . . . . 239
Instrument Panel Fuse Block . . . . . . . . . . . 241
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
All-Season Tires . . . . . . . . . . . . . . . . . . . . . . . . 243
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
Tire Sidewall Labeling . . . . . . . . . . . . . . . . . 244
Tire Designations . . . . . . . . . . . . . . . . . . . . . . 246
Tire Terminology and Definitions . . . . . . 246
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Tire Pressure for High-SpeedOperation . . . . . . . . . . . . . . . . . . . . . . . . . . . 249 Tire Pressure Monitor System . . . . . . . . . 249
Tire Pressure Monitor Operation . . . . . . 250
Tire Inspection . . . . . . . . . . . . . . . . . . . . . . . . 254
Tire Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . 254
When It Is Time for New Tires . . . . . . . . 255
Buying New Tires . . . . . . . . . . . . . . . . . . . . . 256
Different Size Tires and Wheels . . . . . . . . 257
Uniform Tire Quality Grading . . . . . . . . . . 257
Wheel Alignment and Tire Balance . . . . 258
Wheel Replacement . . . . . . . . . . . . . . . . . . . 258
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . 260
Tire Sealant and Compressor Kit . . . . . . . 261
Storing the Tire Sealant and
Compressor Kit . . . . . . . . . . . . . . . . . . . . . . 266
Tire Changing . . . . . . . . . . . . . . . . . . . . . . . . . 267
Compact Spare Tire . . . . . . . . . . . . . . . . . . . . 271
Jump Starting
Jump Starting - North America . . . . . . . . 272
Towing the Vehicle
Transporting a Disabled Vehicle . . . . . . . 274
Recreational Vehicle Towing . . . . . . . . . . . 275
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
Interior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 281
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284

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222 Vehicle Care
Engine Oil Additives/Engine Oil Flushes
Do not add anything to the oil. The
recommended oils meeting the dexos1
specification are all that is needed for good
performance and engine protection.
Engine oil system flushes are not
recommended and could cause engine
damage not covered by the vehicle
warranty.
What to Do with Used Oil
Used engine oil contains certain elements
that can be unhealthy for your skin and
could even cause cancer. Do not let used oil
stay on your skin for very long. Clean your
skin and nails with soap and water, or a
good hand cleaner. Wash or properly
dispose of clothing or rags containing used
engine oil. See the manufacturer's warnings
about the use and disposal of oil products.
Used oil can be a threat to the environment.
If you change your own oil, be sure to drain
all the oil from the filter before disposal.
Never dispose of oil by putting it in the
trash or pouring it on the ground, into
sewers, or into streams or bodies of water.
Recycle it by taking it to a place that
collects used oil.
Engine Oil Life System
When to Change Engine Oil
This vehicle has a computer system that
indicates when to change the engine oil and
filter. This is based on a combination of
factors which include engine revolutions,
engine temperature, and miles driven. Based
on driving conditions, the mileage at which
an oil change is indicated can vary
considerably. For the oil life system to work
properly, the system must be reset every
time the oil is changed.
When the system has calculated that oil life
has been diminished, it indicates that an oil
change is necessary. A CHANGE ENGINE OIL
SOON message comes on. Change the oil as
soon as possible within the next 1 000 km
(600 mi). It is possible that, if driving under
the best conditions, the oil life system
might indicate that an oil change is not
necessary for up to a year. The engine oil
and filter must be changed at least once a
year and, at this time, the system must be
reset. Your dealer has trained service people
who will perform this work and reset the
system. It is also important to check the oil
regularly over the course of an oil drain
interval and keep it at the proper level.If the system is ever reset accidentally, the
oil must be changed at 5 000 km (3,000 mi)
since the last oil change. Remember to reset
the oil life system whenever the oil is
changed.
How to Reset the Engine Oil Life System
Reset the system whenever the engine oil is
changed so that the system can calculate
the next engine oil change. To reset the
system:
1. Display the REMAINING OIL LIFE on the DIC. See Driver Information Center (DIC)
(Base Level) 0101 or
Driver Information Center (DIC) (Uplevel)
0 103. This display shows an estimate of
the oil’s remaining useful life. If 10% is
displayed, that means that 10% of the
current oil life remains.
2. Press and hold
lfor the base cluster
or the thumbwheel for the uplevel
cluster while the Oil Life display is active.
The oil life will change to 100%.
If the CHANGE ENGINE OIL SOON message
comes back on when the vehicle is started,
the engine oil life system has not been
reset. Repeat the procedure.

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Vehicle Care 223
Automatic Transmission Fluid
How to Check Automatic Transmission
Fluid
It is not necessary to check the transmission
fluid level. A transmission fluid leak is the
only reason for fluid loss. If a leak occurs,
take the vehicle to your dealer and have it
repaired as soon as possible.
There is a special procedure for checking and
changing the transmission fluid. Because this
procedure is difficult, you should have this
done at your dealer.
Change the fluid at the intervals listed in
Maintenance Schedule0287, and be sure to
use the fluid listed in Recommended Fluids
and Lubricants 0291.
Engine Air Filter Life System
If equipped, this feature provides an
indication of when to change the engine air
filter. The timing to change an engine air
filter depends on driving conditions. It is
possible an air filter change may not be
indicated for up to four years.
When to Change Engine Air Filter
When the REPLACE AT NEXT OIL CHANGE
message displays, the engine air filter
should be replaced at the time of the next
engine oil change. When the REPLACE
ENGINE AIR FILTER NOW message displays,
the engine air filter should be replaced as
soon as possible.
Reset the engine air filter life system after
the engine air filter is replaced. See your
dealer for service and to reset the system.
How to Reset Engine Air Filter Life
System
Reset the system whenever the engine air
filter is replaced so that the system can
calculate the next engine air filter change.
To reset:
1. Place the vehicle in P (Park).
2. Select Engine Air Filter Life on the DIC menu. See Driver Information Center
(DIC) (Base Level) 0101 or
Driver Information Center (DIC) (Uplevel)
0 103. 3. Press
lor the thumbwheel to move to
the Reset/Disable display area. Select
Reset then press
lor press the
thumbwheel. Press YES to confirm the
reset.
4. 100% AIR FILTER LIFE will be displayed when the Engine Air Filter Life System is
successfully reset.
Engine Air Cleaner/Filter
The engine air cleaner/filter is in the engine
compartment on the passenger side of the
vehicle. See Engine Compartment Overview
0 219.
When to Inspect the Engine Air
Cleaner/Filter
For intervals on inspecting and replacing the
engine air cleaner/filter, see Maintenance
Schedule 0287.
How to Inspect the Engine Air
Cleaner/Filter
Do not start the engine or have the engine
running with the engine air cleaner/filter
housing open. Before removing the engine
air cleaner/filter, make sure that the engine
air cleaner/filter housing and nearby
components are free of dirt and debris.

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Vehicle Care 229
Open the cap with the washer symbol on it.
Add washer fluid until the tank is full. See
Engine Compartment Overview0219 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.
Brakes
Disc brake linings have built-in wear
indicators that make a high-pitched warning
sound when the brake linings are worn and
new linings are needed. The sound can come
and go or can be heard all the time when
the vehicle is moving, except when applying
the brake pedal firmly.
{Warning
The brake wear warning sound means
that soon the brakes will not work well.
That could lead to a crash. When the
brake wear warning sound is heard, have
the vehicle serviced.
Caution
Continuing to drive with worn-out brake
linings could result in costly brake
repairs.
Some driving conditions or climates can
cause a brake squeal when the brakes are
first applied, clearing up following several
applications. This does not mean something
is wrong with the brakes. Properly torqued wheel nuts are necessary
to help prevent brake pulsation. When tires
are rotated, inspect brake linings for wear
and evenly tighten wheel nuts in the proper
sequence to torque specifications. See
Capacities and Specifications
0295.
Brake pads should be replaced as complete
axle sets.
Brake Pedal Travel
See your dealer if the brake pedal does not
return to normal height, or if there is a
rapid increase in pedal travel. This could be
a sign that brake service may be required.
Replacing Brake System Parts
Always replace brake system parts with
new, approved replacement parts. If this is
not done, the brakes may not work
properly. The braking performance can
change in many ways if the wrong brake
parts are installed or if parts are improperly
installed.

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Vehicle Care 243
RelaysUsage
RLY02 Liftgate
RLY03 –
RLY04 Blower RLY05 Logistic mode
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 0171.
.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.
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
code molded onto the sidewall.
Consider installing winter tires on the
vehicle if frequent driving on snow or
ice-covered roads is expected. All-season tires

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244 Vehicle Care
provide adequate performance for most
winter driving conditions, but they may not
offer the same level of traction or
performance as winter tires on snow or
ice-covered roads. SeeWinter Tires0244.
Winter Tires
This vehicle was not originally equipped
with winter tires. Winter tires are designed
for increased traction on snow and
ice-covered roads. Consider installing winter
tires on the vehicle if frequent driving on ice
or snow covered roads is expected. See your
dealer for details regarding winter tire
availability and proper tire selection. Also,
see Buying New Tires 0256.
With winter tires, there may be decreased
dry road traction, increased road noise, and
shorter tread life. After changing to winter
tires, be alert for changes in vehicle
handling and braking.
If using winter tires:
.Use tires of the same brand and tread
type on all four wheel positions.
.Use only radial ply tires of the same size,
load range, and speed rating as the
original equipment tires. Winter tires with the same speed rating as
the original equipment tires may not be
available for H, V, W, Y, and ZR speed rated
tires. If winter tires with a lower speed
rating are chosen, never exceed the tire's
maximum speed capability.
Tire Sidewall Labeling
Useful information about a tire is
molded into its sidewall. The examples
show a typical passenger vehicle tire
and a compact spare tire sidewall.
Passenger Tire Example
(1) Tire Size:The tire size is a
combination of letters and numbers
used to define a particular tire's width, height, aspect ratio, construction type,
and service description. See the
“Tire
Size” illustration in this section.
(2) TPC Spec (Tire Performance Criteria
Specification)
:Original equipment tires
designed to GM's specific tire
performance criteria have a TPC
specification code molded onto the
sidewall. GM's TPC specifications meet
or exceed all federal safety guidelines.
(3) DOT (Department of
Transportation)
:The Department of
Transportation (DOT) code indicates that
the tire is in compliance with the U.S.
Department of Transportation Motor
Vehicle Safety Standards.
DOT Tire Date of Manufacture
:The last
four digits of the TIN indicate the tire
manufactured date. The first two digits
represent the week and the last two
digits, the year. For example, the third
week of the year 2020 would have a
4-digit DOT date of 0320. Week 01 is
the first full week (Sunday through
Saturday) of each year.

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246 Vehicle Care
(7) TPC Spec (Tire Performance Criteria
Specification)
:Original equipment tires
designed to GM's specific tire
performance criteria have a TPC
specification code molded onto the
sidewall. GM's TPC specifications meet
or exceed all federal safety guidelines.
Tire Designations
Tire Size
The example shows a typical passenger
vehicle tire size.
Passenger (P-Metric) Tire
(1) Passenger (P-Metric) Tire:The
United States version of a metric tire
sizing system. The letter "P" as the first
character in the tire size means a
passenger vehicle tire engineered to
standards set by the U.S. Tire and Rim
Association. (2) Tire Width
:The 3-digit number
indicates the tire section width in
millimeters from sidewall to sidewall.
(3) Aspect Ratio
:A 2-digit number that
indicates the tire height-to-width
measurements. For example, if the tire
size aspect ratio is 75, as shown in
item (3) of the illustration, it would
mean that the tire's sidewall is
75 percent as high as it is wide.
(4) Construction Code
:A letter code is
used to indicate the type of ply
construction in the tire. The letter "R"
means radial ply construction; the letter
"D" means diagonal or bias ply
construction.
(5) Rim Diameter
:Diameter of the
wheel in inches.
(6) Service Description
:These
characters represent the load index and
speed rating of the tire. The load index
represents the load carrying capacity a
tire is certified to carry. The speed
rating is the maximum speed a tire is
certified to carry a load.
Tire Terminology and Definitions
Air Pressure:The amount of air inside
the tire pressing outward on each
square inch of the tire. Air pressure is
expressed in kPa (kilopascal) or psi
(pounds per square inch).
Aspect Ratio
:The relationship of a
tire's height to its width.
Belt
:A rubber coated layer of cords
that is located between the plies and
the tread. Cords may be made from
steel or other reinforcing materials.
Bead
:The tire bead contains steel
wires wrapped by steel cords that hold
the tire onto the rim.
Bias Ply Tire
:A pneumatic tire in which
the plies are laid at alternate angles
less than 90 degrees to the centerline
of the tread.
Cold Tire Pressure
:The amount of air
pressure in a tire, measured in kPa
(kilopascal) or psi (pounds per square
inch) before a tire has built up heat
from driving. See Tire Pressure0248.