2018 CHEVROLET TRAVERSE check engine light

Chevrolet Traverse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
10603118) - 2018 - CRC - 1/29/18
Driving and Operating 237
Using ABS
Do not pump the brakes. Just hold
the brake pedal down firmly and let
ABS work. You may hear the ABS
pump or motor operating and feel
the brake pedal pulsate. This is
normal.
Braking in Emergencies
ABS allows you to steer and brake
at the same time. In many
emergencies, steering can help
more than even the very best
braking.
Electric Parking Brake
The vehicle has an Electric Parking
Brake (EPB). The EPB can always
be activated, even if the ignition is
off. To prevent draining the battery,
avoid repeated cycles of the EPB
system when the engine is not
running.
The system has a
Yor PARK
Electric Parking Brake light, and
some vehicles may have a
8
Service Parking Brake light.
See Electric Parking Brake Light
0 144 andService Electric Parking
Brake Light (Uplevel Only) 0144.
Before leaving the vehicle, check for
the
Yor PARK light to ensure that
the parking brake is applied.
EPB Apply
To apply the EPB:
1. Be sure the vehicle is at a complete stop.
2. Lift up the EPB switch momentarily. The
Yor PARK light will flash and
then stay on once the EPB is fully
applied. If the
Yor PARK light
flashes continuously, then the EPB
is only partially applied, the vehicle
is in Service Mode, or there is a
problem with the EPB. A Driver
Information Center (DIC) message
will display. Release the EPB and
try to apply it again. If the light does
not come on, or keeps flashing,
have the vehicle serviced.
Do not drive the vehicle if the
Yor
PARK light is flashing. See your
dealer. See Electric Parking Brake
Light 0144.
If the
8light is on or theYor
PARK light flashes when the ignition
is turned on, pull the EPB switch
and hold it. Continue to hold the
switch until the
Yor PARK light
remains on. If the
8light remains
on, see your dealer.
If the EPB is applied while the
vehicle is moving, the vehicle will
decelerate as long as the switch is

Chevrolet Traverse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
10603118) - 2018 - CRC - 1/29/18
240 Driving and Operating
vehicle wheel brakes to assist the
driver in keeping the vehicle on the
intended path.
If cruise control is being used and
traction control or StabiliTrak begins
to limit wheel spin, cruise control will
disengage. Cruise control may be
turned back on when road
conditions allow. TCS and
StabiliTrak will automatically turn on
when cruise control is set.
Both systems come on
automatically when the vehicle is
started and begins to move. The
systems may be heard or felt while
they are operating or while
performing diagnostic checks. This
is normal and does not mean there
is a problem with the vehicle.
It is recommended to leave both
systems on for normal driving
conditions, but it may be necessary
to turn TCS off if the vehicle gets
stuck in sand, mud, ice, or snow.
SeeIf the Vehicle Is Stuck 0219
and “Turning the Systems Off and
On” later in this section.
The indicator light for both systems
is in the instrument cluster. This
light will:
.
Flash when TCS is limiting
wheel spin.
. Flash when StabiliTrak is
activated.
. Turn on and stay on when either
system is not working.
If either system fails to turn on or to
activate, a message displays in the
Driver Information Center (DIC), and
dcomes on and stays on to
indicate that the system is inactive
and is not assisting the driver in
maintaining control. The vehicle is
safe to drive, but driving should be
adjusted accordingly. If
dcomes on and stays on:
1. Stop the vehicle.
2. Turn the engine off and wait 15 seconds.
3. Start the engine.
4. Drive the vehicle.
If
dcomes on and stays on, see
your dealer.
Turning the Systems Off
and On
Caution
Do not repeatedly brake or
accelerate heavily when TCS is
off. The vehicle driveline could be
damaged.

Chevrolet Traverse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
10603118) - 2018 - CRC - 1/29/18
270 Driving and Operating
Prohibited Fuels
Caution
Do not use fuels with any of the
following conditions; doing so
may damage the vehicle and void
its warranty:. For vehicles which are not
FlexFuel, fuel labeled
greater than 15% ethanol by
volume, such as mid-level
ethanol blends (16 –50%
ethanol), E85, or FlexFuel.
. Fuel with any amount of
methanol, methylal, and
aniline. These fuels can
corrode metal fuel system
parts or damage plastic and
rubber parts.
. Fuel containing metals such
as methylcyclopentadienyl
manganese tricarbonyl
(MMT), which can damage
the emissions control
system and spark plugs.
(Continued)
Caution (Continued)
.Fuel with a posted octane
rating of less than the
recommended fuel. Using
this fuel will lower fuel
economy and performance,
and may decrease the life of
the emissions catalyst.
California Fuel
Requirements
If the vehicle is certified to meet
California Emissions Standards, it is
designed to operate on fuels that
meet California specifications. See
the underhood emission control
label. If this fuel is not available in
states adopting California Emissions
Standards, the vehicle will operate
satisfactorily on fuels meeting
federal specifications, but emission
control system performance may be
affected. The malfunction indicator
lamp could turn on and the vehicle
may not pass a smog-check test.
See Malfunction Indicator Lamp
(Check Engine Light) 0141. If this occurs, return to your authorized
dealer for diagnosis. If it is
determined that the condition is
caused by the type of fuel used,
repairs may not be covered by the
vehicle warranty.
Fuels in Foreign
Countries
The U.S., Canada, and Mexico post
fuel octane ratings in anti-knock
index (AKI). For fuel not to use in a
foreign country, see
“Prohibited
Fuels” inFuel 0269.
Fuel Additives
To keep fuel systems clean, TOP
TIER detergent gasoline is
recommended. See Fuel0269.
If TOP TIER detergent gasoline is
not available, one bottle of GM Fuel
System Treatment Cleaner added to
the fuel tank at every engine oil
change, can help. GM Fuel System
Treatment Cleaner is the only
gasoline additive recommended by
General Motors. It is available at
your dealer.

Chevrolet Traverse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
10603118) - 2018 - CRC - 1/29/18
Driving and Operating 281
Electric Trailer Brake Control
Wiring Provisions
These wiring provisions for an
electric trailer brake controller are
included with the vehicle as part of
the trailer wiring package. The body
harness, inside the front driver side
instrument panel, contains blunt cut
wires below the headlamp switch for
the electric trailer brake controller.
The harness contains the following
wires:
.Blue: “To Trailer”
. Red/Black or Red/Blue:
Battery Feed
. White/Blue: Brake Apply Signal
. Black: Ground
The electric trailer brake controller
should be installed by your dealer or
a qualified service center.Conversions and
Add-Ons
Add-On Electrical
Equipment
{Warning
The Data Link Connector (DLC) is
used for vehicle service
and Emission Inspection/
Maintenance testing. See
Malfunction Indicator Lamp
(Check Engine Light) 0141.
A device connected to the DLC —
such as an aftermarket fleet or
driver-behavior tracking device —
may interfere with vehicle
systems. This could affect vehicle
operation and cause a crash.
Such devices may also access
information stored in the vehicle’s
systems.
Caution
Some electrical equipment can
damage the vehicle or cause
components to not work and
would not be covered by the
vehicle warranty. Always check
with your dealer before adding
electrical equipment.
Add-on equipment can drain the
vehicle's 12-volt battery, even if the
vehicle is not operating.
The vehicle has an airbag system.
Before attempting to add anything
electrical to the vehicle, see
Servicing the Airbag-Equipped
Vehicle 095 and Adding Equipment
to the Airbag-Equipped Vehicle
0 95.

Chevrolet Traverse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
10603118) - 2018 - CRC - 1/29/18
282 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . . . . . 283
California Proposition65 Warning . . . . . . . . . . . . . . . . . 283
California Perchlorate Materials Requirements . . . . . 284
Accessories and Modifications . . . . . . . . . . . . . . . . 284
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 284
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 285
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 286
Engine Oil . . . . . . . . . . . . . . . . . . . . 289
Engine Oil Life System . . . . . . . 291
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . 292
Engine Air Cleaner/Filter . . . . . . 293
Cooling System . . . . . . . . . . . . . . 294
Engine Overheating . . . . . . . . . . 298
Washer Fluid . . . . . . . . . . . . . . . . . 299
Brakes . . . . . . . . . . . . . . . . . . . . . . . 300
Brake Fluid . . . . . . . . . . . . . . . . . . . 301
Battery - North America . . . . . . 302
All-Wheel Drive . . . . . . . . . . . . . . . 303 Starter Switch Check . . . . . . . . . 303
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 303
Park Brake and P (Park)
Mechanism Check . . . . . . . . . . 304
Wiper Blade Replacement . . . . 304
Windshield Replacement . . . . . 306
Gas Strut(s) . . . . . . . . . . . . . . . . . . 306
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 307
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 307
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . . . 307
LED Lighting . . . . . . . . . . . . . . . . . 308
Headlamps, Front Turn Signal, and Sidemarker . . . . . . . . . . . . . 308
License Plate Lamp . . . . . . . . . . 308
Electrical System
High Voltage Devices and Wiring . . . . . . . . . . . . . . . . . . . . . . . 309
Electrical System Overload . . . 309
Fuses and Circuit Breakers . . . 310
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 310
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 314 Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 316
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 318
All-Season Tires . . . . . . . . . . . . . . 319
Winter Tires . . . . . . . . . . . . . . . . . . 319
Summer Tires . . . . . . . . . . . . . . . . 320
Tire Sidewall Labeling . . . . . . . . 320
Tire Designations . . . . . . . . . . . . . 322
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . 323
Tire Pressure . . . . . . . . . . . . . . . . . 326
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . 327
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 327
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 328
Tire Inspection . . . . . . . . . . . . . . . . 332
Tire Rotation . . . . . . . . . . . . . . . . . 333
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 334
Buying New Tires . . . . . . . . . . . . . 334
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . 336
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . 336
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 338
Wheel Replacement . . . . . . . . . . 338

Chevrolet Traverse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
10603118) - 2018 - CRC - 1/29/18
Vehicle Care 293
occurs, take the vehicle to the
dealer and have it repaired as soon
as possible.
Change the fluid at the intervals
listed inMaintenance Schedule
0 365, and be sure to use the
transmission fluid listed in
Recommended Fluids and
Lubricants 0373.
Caution
Use of the incorrect automatic
transmission fluid may damage
the vehicle, and the damage may
not be covered by the vehicle
warranty. Always use the
automatic transmission fluid listed
in Recommended Fluids and
Lubricants 0373.
If you need to check the
transmission fluid level, take the
vehicle to your dealer.
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
0 286 for location.
When to Inspect the Engine Air
Cleaner/Filter
For intervals on changing and
inspecting the engine air cleaner/
filter, see Maintenance Schedule
0 365.
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. Remove the engine air
cleaner/filter. Lightly tap and shake
the engine air cleaner/filter (away
from the vehicle), to release loose
dust and dirt. Inspect the engine air
cleaner/filter for damage, and replace if damaged. Do not clean
the engine air cleaner/filter or
components with water or
compressed air.
To inspect or replace the air cleaner/
filter:
2.0L L4 Engine
1. Remove the five screws and lift the cover out of the assembly.
2. Inspect or replace the engine air cleaner/filter.
3. Lower the cover and secure with the five screws.

Chevrolet Traverse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
10603118) - 2018 - CRC - 1/29/18
Vehicle Care 301
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 expected can change
in many other ways if the wrong
replacement brake parts are
installed or if parts are improperly
installed.
Brake Fluid
The brake master cylinder reservoir
is filled with GM approved DOT 3
brake fluid as indicated on the
reservoir cap. SeeEngine
Compartment Overview 0286 for
the location of the reservoir. Checking Brake Fluid
With the vehicle in P (Park) on a
level surface, the brake fluid level
should be between the minimum
and maximum marks on the brake
fluid reservoir.
There are only two reasons why the
brake fluid level in the reservoir may
go down:
.
Normal brake lining wear. When
new linings are installed, the
fluid level goes back up.
. A fluid leak in the brake
hydraulic system. Have the
brake hydraulic system fixed.
With a leak, the brakes will not
work well.
Always clean the brake fluid
reservoir cap and the area around
the cap before removing it.
Do not top off the brake fluid.
Adding fluid does not correct a leak.
If fluid is added when the linings are
worn, there will be too much fluid
when new brake linings are installed. Add or remove fluid, as
necessary, only when work is done
on the brake hydraulic system.
{Warning
If too much brake fluid is added, it
can spill on the engine and burn,
if the engine is hot enough. You
or others could be burned, and
the vehicle could be damaged.
Add brake fluid only when work is
done on the brake hydraulic
system.
When the brake fluid falls to a low
level, the brake warning light comes
on. See Brake System Warning
Light 0143.
Brake fluid absorbs water over time
which degrades the effectiveness of
the brake fluid. Replace brake fluid
at the specified intervals to prevent
increased stopping distance. See
Maintenance Schedule 0365.

Chevrolet Traverse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
10603118) - 2018 - CRC - 1/29/18
Service and Maintenance 371
Battery
The 12-volt battery supplies power
to start the engine and operate any
additional electrical accessories.
.To avoid break-down or failure to
start the vehicle, maintain a
battery with full cranking power.
. Trained dealer technicians have
the diagnostic equipment to test
the battery and ensure that the
connections and cables are
corrosion-free.
Belts
. Belts may need replacing if they
squeak or show signs of
cracking or splitting.
. Trained dealer technicians have
access to tools and equipment
to inspect the belts and
recommend adjustment or
replacement when necessary. Brakes
Brakes stop the vehicle and are
crucial to safe driving.
.
Signs of brake wear may include
chirping, grinding, or squealing
noises, or difficulty stopping.
. Trained dealer technicians have
access to tools and equipment
to inspect the brakes and
recommend quality parts
engineered for the vehicle.
Fluids
Proper fluid levels and approved
fluids protect the vehicle’s systems
and components. See
Recommended Fluids and
Lubricants 0373 for GM approved
fluids.
. Engine oil and windshield
washer fluid levels should be
checked at every fuel fill.
. Instrument cluster lights may
come on to indicate that fluids
may be low and need to be
filled. Hoses
Hoses transport fluids and should
be regularly inspected to ensure
that there are no cracks or leaks.
With a multi-point inspection, your
dealer can inspect the hoses and
advise if replacement is needed.
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.