2020 CHEVROLET TRAVERSE check engine light

Chevrolet Traverse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527526) - 2020 - CRC - 9/5/19
246 Driving and Operating
rating is not shown, the default
trailer tire speed rating is 105 km/h
(65 mph).Conversions and
Add-Ons
Add-On Electrical
Equipment
{Warning
The Data Link Connector (DLC) is
used for vehicle service and
Emission Inspection/Maintenance
testing. SeeMalfunction Indicator
Lamp (Check Engine Light) 0125
. 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 075 and
Adding Equipment to the
Airbag-Equipped Vehicle 076.

Chevrolet Traverse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527526) - 2020 - CRC - 9/5/19
Vehicle Care 247
Vehicle Care
General Information
General Information . . . . . . . . . . 248
California Proposition65 Warning . . . . . . . . . . . . . . . . . 248
California Perchlorate Materials Requirements . . . . . 249
Accessories and Modifications . . . . . . . . . . . . . . . . 249
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 249
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 250
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 252
Engine Oil . . . . . . . . . . . . . . . . . . . . 253
Engine Oil Life System . . . . . . . 255
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . 256
Engine Air Filter Life System . . . . . . . . . . . . . . . . . . . . . . 257
Engine Air Cleaner/Filter . . . . . . 257
Cooling System . . . . . . . . . . . . . . 258
Engine Overheating . . . . . . . . . . 262
Washer Fluid . . . . . . . . . . . . . . . . . 263
Brakes . . . . . . . . . . . . . . . . . . . . . . . 264
Brake Fluid . . . . . . . . . . . . . . . . . . . 265 Battery - North America . . . . . . 266
All-Wheel Drive . . . . . . . . . . . . . . . 267
Starter Switch Check . . . . . . . . . 267
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 267
Park Brake and P (Park) Mechanism Check . . . . . . . . . . 267
Wiper Blade Replacement . . . . 268
Windshield Replacement . . . . . 269
Gas Strut(s) . . . . . . . . . . . . . . . . . . 269
Headlamp Aiming
Front Headlamp Aiming . . . . . . 271
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 271
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . . . 271
LED Lighting . . . . . . . . . . . . . . . . . 271
Headlamps, Front Turn Signal, and Sidemarker . . . . . . . . . . . . . 271
License Plate Lamp . . . . . . . . . . 272
Electrical System
High Voltage Devices and Wiring . . . . . . . . . . . . . . . . . . . . . . . 273
Electrical System Overload . . . 273
Fuses and Circuit Breakers . . . 274
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 274 Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 278
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 280
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 283
All-Season Tires . . . . . . . . . . . . . . 284
Winter Tires . . . . . . . . . . . . . . . . . . 284
Tire Sidewall Labeling . . . . . . . . 284
Tire Designations . . . . . . . . . . . . . 286
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . 287
Tire Pressure . . . . . . . . . . . . . . . . . 290
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . 291
Tire Pressure Monitor
System . . . . . . . . . . . . . . . . . . . . . . 291
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 292
Tire Inspection . . . . . . . . . . . . . . . . 296
Tire Rotation . . . . . . . . . . . . . . . . . 297
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 298
Buying New Tires . . . . . . . . . . . . . 298
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . 300
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . 300
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 302

Chevrolet Traverse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527526) - 2020 - CRC - 9/5/19
Vehicle Care 265
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 0252 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 0127.
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 0329.
What to Add
Use only GM approved DOT 3
brake fluid from a clean, sealed
container. See Recommended
Fluids and Lubricants 0338.
{Warning
The wrong or contaminated brake
fluid could result in damage to the
brake system. This could result in
the loss of braking leading to a
possible injury. Always use the
proper GM approved brake fluid.

Chevrolet Traverse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527526) - 2020 - CRC - 9/5/19
Service and Maintenance 335
Additional
Maintenance and Care
Your vehicle is an important
investment and caring for it properly
may help to avoid future costly
repairs. To maintain vehicle
performance, additional
maintenance services may be
required.
It is recommended that your dealer
perform these services—their
trained dealer technicians know
your vehicle best. Your dealer can
also perform a thorough
assessment with a multi-point
inspection to recommend when your
vehicle may need attention.
The following list is intended to
explain the services and conditions
to look for that may indicate
services are required.
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 0338 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.

Chevrolet Traverse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527526) - 2020 - CRC - 9/5/19
370 Index
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . . . 249
Accessory Power . . . . . . . . . . . . . . . 187
Adaptive Cruise Control . . . . . . . . 205
Add-On Electrical Equipment . . . 246
Additional Information OnStar . . . . . . . . . . . . . . . . . . . . . . . 361
Additional Maintenance and Care . . . . . . . . . . . . . . . . . . . . . . 335
Adjustments Lumbar, Front Seats . . . . . . . . . . . . 43
Air Cleaner/Filter, Engine . . . . . . . 257
Air Conditioning . . . . . . . . . . . 157, 161
Air Filter Life System . . . . . . . . . . . . . . . . . . . 257
Air Filter, Passenger Compartment . . . . . . . . . . . . . . . . . 164
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 163
Airbag System
Check . . . . . . . . . . . . . . . . . . . . . . . . . . 77
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . . . 69
Passenger Sensing System . . . . 71
What Makes an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 69
What Will You See after an Airbag Inflates? . . . . . . . . . . . . . . . 70 Airbag System (cont'd)
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 68
Where Are the Airbags? . . . . . . . . 67
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . . . 76
Passenger Status Indicator . . . 123
Readiness Light . . . . . . . . . . . . . . 123
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . 75
System Check . . . . . . . . . . . . . . . . . . 65
Alarm Vehicle Security . . . . . . . . . . . . . . . . 29
Alert Lane Change . . . . . . . . . . . . . . . . . 225
Side Blind Zone (SBZA) . . . . . . 225
All-Season Tires . . . . . . . . . . . . . . . . 284
All-Wheel Drive . . . . . . . . . . . . 194, 267
Antilock Brake System (ABS) . . . 195
Warning Light . . . . . . . . . . . . . . . . . 128
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . 318
Interior . . . . . . . . . . . . . . . . . . . . . . . . 323
Assistance Program, Roadside . . . . . . . . . . . . . . . . . . . . . . 349
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . 219

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Index 371
Assistance Systems forParking and Backing . . . . . . . . . . 215
Auto Stop Stop/Start System . . . . . . . . . . . . 185
Automatic Dimming Mirrors . . . . . . . . . . . . . . . . 32
Door Locks . . . . . . . . . . . . . . . . . . . . . 20
Emergency Braking (AEB) . . . . 221
Headlamp System . . . . . . . . . . . . 150
Transmission . . . . . . . . . . . . . . . . . 191
Transmission Fluid . . . . . . . . . . . 256
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . 193
Shift Lock Control FunctionCheck . . . . . . . . . . . . . . . . . . . . . . . 267
B
BatteryExterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . 155
Load Management . . . . . . . . . . . . 154
Power Protection . . . . . . . . . . . . . 155
Battery - North America . . . . 266, 312
Blade Replacement, Wiper . . . . . 268
Brake Parking, Electric . . . . . . . . . . . . . . 196
System Warning Light . . . . . . . . 127
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 264 Brakes (cont'd)
Antilock . . . . . . . . . . . . . . . . . . . . . . . 195
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 197
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 168 AutomaticEmergency (AEB) . . . . . . . . . . . 221
Braking System Front Pedestrian (FPB) . . . . . . . 223
Break-In, New Vehicle . . . . . . . . . . 182
Bulb Replacement Headlamp Aiming . . . . . . . . . . . . . 271
Headlamps . . . . . . . . . . . . . . . . . . . 271
Headlamps, Front TurnSignal, and Sidemarker . . . . . 271
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . 271
License Plate Lamps . . . . . . . . . 272
Buying New Tires . . . . . . . . . . . . . . . 298
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 109 California
Perchlorate Materials
Requirements . . . . . . . . . . . . . . . 249
California Proposition
65 Warning . . . . . . . . . .248, 266, 312, Back Cover
Canadian Vehicle Owners . . . . . . . . 2
Capacities and Specifications . . . . . . . . . . . . . . . . . 342
Carbon Monoxide
Engine Exhaust . . . . . . . . . . . . . . . 190
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . 22
Winter Driving . . . . . . . . . . . . . . . . 176
Cargo Management System . . . . . . . . . 101
Caution, Danger, and Warning . . . . 2
Center Console Storage . . . . . . . . 101
Chains, Tire . . . . . . . . . . . . . . . . . . . . 303
Charging Wireless . . . . . . . . . . . . . . . . . . . . . . . 111
Charging System Light . . . . . . . . . 124
Check Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 125
Child Restraints Infants and Young Children . . . . . 79

Chevrolet Traverse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Index 373
DrivingAssistance Systems . . . . . . . . . . 219
Better Fuel Economy . . . . . . . . . 166
Characteristics and
Towing Tips . . . . . . . . . . . . . . . . . 233
Defensive . . . . . . . . . . . . . . . . . . . . . 167
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 167
Hill and Mountain Roads . . . . . . 175
If the Vehicle is Stuck . . . . . . . . . 177
Loss of Control . . . . . . . . . . . . . . . 169
Off-Road . . . . . . . . . . . . . . . . . . . . . 170
Off-Road Recovery . . . . . . . . . . . 169
Vehicle Load Limits . . . . . . . . . . . 178
Wet Roads . . . . . . . . . . . . . . . . . . . 174
Winter . . . . . . . . . . . . . . . . . . . . . . . . 176
Dual Automatic Climate
Control System . . . . . . . . . . . . . . . . 157
E
Electric Parking Brake . . . . . . . . . . 196
Electric Parking Brake Light . . . . 127
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 246
Electrical System Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 274
Fuses and Circuit Breakers . . . 274 Electrical System (cont'd)
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 278
Overload . . . . . . . . . . . . . . . . . . . . . 273
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 280
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . 360
Engine
Air Cleaner/Filter . . . . . . . . . . . . . 257
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 125
Compartment Overview . . . . . . . 252
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 122
Cooling System . . . . . . . . . . . . . . . 258
Drive Belt Routing . . . . . . . . . . . . 344
Exhaust . . . . . . . . . . . . . . . . . . . . . . 190
Heater . . . . . . . . . . . . . . . . . . . . . . . . 186
Oil Life System . . . . . . . . . . . . . . . 255
Oil Pressure Light . . . . . . . . . . . . 131
Overheating . . . . . . . . . . . . . . . . . . 262
Power Messages . . . . . . . . . . . . . 137
Running While Parked . . . . . . . . 190
Starting . . . . . . . . . . . . . . . . . . . . . . . 184
Engine Air Filter Life System . . . . 257
Entry Lighting . . . . . . . . . . . . . . . . . . . 154
Equipment, Towing . . . . . . . . . . . . . 241 Event Data Recorders . . . . . . . . . . 357
Exit Lighting . . . . . . . . . . . . . . . . . . . . 154
Extended Parking . . . . . . . . . . . . . . . 189
Extender, Seat Belt . . . . . . . . . . . . . . 63
Exterior Lamp Controls . . . . . . . . . 147
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . . . 155
F
Filter,
Engine Air Cleaner . . . . . . . . . . . 257
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 149
Flashers, Hazard Warning . . . . . . 151
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 303
Changing . . . . . . . . . . . . . . . . . . . . . 305
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 326
Fluid Automatic Transmission . . . . . . 256
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 265
Washer . . . . . . . . . . . . . . . . . . . . . . . 263
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 151
Folding Mirrors . . . . . . . . . . . . . . . . . . 31
Forward Collision Alert
(FCA) System . . . . . . . . . . . . . . . . . 219
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 355
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 132

Chevrolet Traverse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Index 375
How to Wear Seat BeltsProperly . . . . . . . . . . . . . . . . . . . . . . . . 57
HVAC . . . . . . . . . . . . . . . . . . . . . . 157, 161
I
Ignition Positions . . . . . . . . . . . . . . . 182
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 30
Indicator Pedestrian Ahead . . . . . . . . . . . . 129
Vehicle Ahead . . . . . . . . . . . . . . . . 129
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . 79
Information Publication Ordering . . . . . . . . . . 354
Infotainment . . . . . . . . . . . . . . . . . . . . 156
Infotainment System . . . . . . . . . . . . 358
Instrument Cluster . . . . . . . . . 115, 118
Instrument Panel Storage Area . . . . . . . . . . . . . . . . . 100
Instrument Panel Overview . . . . . . . 5
Interior Rearview Mirrors . . . . . . . . . 32
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . . . 312
K
Keyless EntryRemote (RKE) System . . . . . . . . . . 8
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
L
Labeling, Tire Sidewall . . . . . . . . . . 284
Lamps Courtesy . . . . . . . . . . . . . . . . . . . . . . 152
Daytime Running (DRL) . . . . . . 149
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 152
Exterior Controls . . . . . . . . . . . . . . 147
Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . 155
License Plate . . . . . . . . . . . . . . . . . 272
Malfunction Indicator
(Check Engine) . . . . . . . . . . . . . 125
On Reminder . . . . . . . . . . . . . . . . . 133
Reading . . . . . . . . . . . . . . . . . . . . . . 153
Lane Change Alert (LCA) . . . . . . . 225
Lane Keep Assist (LKA) . . . . . . . . 227
Lane Keep Assist Light . . . . . . . . . 128
Lap-Shoulder Belt . . . . . . . . . . . . . . . 59
LATCH System
Replacing Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . . . 94
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . 84 LED Lighting . . . . . . . . . . . . . . . . . . . . 271
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Lighting
Entry . . . . . . . . . . . . . . . . . . . . . . . . . 154
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Illumination Control . . . . . . . . . . . 152
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 271
Lights Airbag Readiness . . . . . . . . . . . . . 123
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . . 128
Brake System Warning . . . . . . . 127
Charging System . . . . . . . . . . . . . 124
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . 125
Cruise Control . . . . . . . . . . . . . . . . 133
Door Ajar . . . . . . . . . . . . . . . . . . . . . 133
Electric Parking Brake . . . . . . . . 127
Engine Oil Pressure . . . . . . . . . . 131
Flash-to-Pass . . . . . . . . . . . . . . . . . 149
Front Fog Lamp . . . . . . . . . . . . . . 132
High-Beam On . . . . . . . . . . . . . . . . 132
High/Low Beam Changer . . . . . 149
Lane Keep Assist . . . . . . . . . . . . . 128
Low Fuel Warning . . . . . . . 131, 132
Seat Belt Reminders . . . . . . . . . . 122
Security . . . . . . . . . . . . . . . . . . . . . . 132