2019 CHEVROLET BLAZER check engine light

Chevrolet Blazer (GMNA-Localizing-U.S./Canada/Mexico-12461541) - 2019 -
CRC - 3/11/19
356 Service and Maintenance
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 0359 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 Blazer (GMNA-Localizing-U.S./Canada/Mexico-12461541) - 2019 -
CRC - 3/11/19
392 Index
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . . . 259
Accessory Power . . . . . . . . . . . . . . . 197
Active Fuel Management . . . . . . . 199
Adaptive Cruise Control . . . . . . . . 214
Add-On Electrical Equipment . . . 256
Additional Information OnStar . . . . . . . . . . . . . . . . . . . . . . . 382
Additional Maintenance
and Care . . . . . . . . . . . . . . . . . . . . . . 356
Adjustments Lumbar, Front Seats . . . . . . . . . . . . 62
Air Cleaner/Filter, Engine . . . . . . . 269
Air Conditioning . . . . . . . . . . . . . . . . 170
Air Filter
Life System . . . . . . . . . . . . . . . . . . . 269
Air Filter, Passenger Compartment . . . . . . . . . . . . . . . . . 175
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 174
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . 90
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . . . 83 Airbag System (cont'd)
Passenger Sensing System . . . . 85
What Makes an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 83
What Will You See after an Airbag Inflates? . . . . . . . . . . . . . . . 84
When Should an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 82
Where Are the Airbags? . . . . . . . . 81
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . . . 89
Passenger Status Indicator . . . 134
Readiness Light . . . . . . . . . . . . . . 134
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . 89
System Check . . . . . . . . . . . . . . . . . . 79
Alarm
Vehicle Security . . . . . . . . . . . . . . . . 47
Alert Lane Change . . . . . . . . . . . . . . . . . 236
Side Blind Zone (SBZA) . . . . . . 236
All-Season Tires . . . . . . . . . . . . . . . . 296
All-Wheel Drive . . . . . . . . . . . . 204, 280

Chevrolet Blazer (GMNA-Localizing-U.S./Canada/Mexico-12461541) - 2019 -
CRC - 3/11/19
Index 393
Antilock Brake System (ABS) . . . 205Warning Light . . . . . . . . . . . . . . . . . 138
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . 338
Interior . . . . . . . . . . . . . . . . . . . . . . . . 343
Armrest Storage . . . . . . . . . . . . . . . . 110
Assistance Program, Roadside . . . . . . . . . . . . . . . . . . . . . . 370
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . 229
Assistance Systems for
Parking and Backing . . . . . . . . . . 225
Auto Stop Stop/Start System . . . . . . . . . . . . 195
Automatic Dimming Mirrors . . . . . . . . . . . . . . . . 50
Door Locks . . . . . . . . . . . . . . . . . . . . . 38
Forward Braking . . . . . . . . . . . . . . 232
Headlamp System . . . . . . . . . . . . 163
Transmission . . . . . . . . . . . . . . . . . 201
Transmission Fluid . . . . . . . . . . . 268
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . 203
Shift Lock Control FunctionCheck . . . . . . . . . . . . . . . . . . . . . . . 280B
Battery
Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . 168
Load Management . . . . . . . . . . . . 167
Power Protection . . . . . . . . . . . . . 167
Battery - North America . . . . 279, 332
Blade Replacement, Wiper . . . . . 281
Brake Parking, Electric . . . . . . . . . . . . . . 206
System Warning Light . . . . . . . . 137
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 277 Antilock . . . . . . . . . . . . . . . . . . . . . . . 205
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 207
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 178 Automatic Forward . . . . . . . . . . . 232
Braking System Front Pedestrian (FPB) . . . . . . . 233
Break-In, New Vehicle . . . . . . . . . . 192
Bulb Replacement Back-up Lamps . . . . . . . . . . . . . . . 284
Headlamp Aiming . . . . . . . . . . . . . 284
Headlamps . . . . . . . . . . . . . . . . . . . 284
High Intensity Discharge(HID) Lighting . . . . . . . . . . . . . . . 284
Buying New Tires . . . . . . . . . . . . . . . 312
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 119
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 259
California Proposition
65 Warning . . . . . . . . . .258, 279, 332, Back Cover
Canadian Vehicle Owners . . . . . . . . 2
Capacities and
Specifications . . . . . . . . . . . . . . . . . 363
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 200
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . 40
Winter Driving . . . . . . . . . . . . . . . . 186
Cargo Management System . . . . . . . . . . 111
Tie-Downs . . . . . . . . . . . . . . . . . . . . . 111
Caution, Danger, and Warning . . . . 3
Center Console Storage . . . . . . . . 110
Chains, Tire . . . . . . . . . . . . . . . . . . . . 316
Charging Wireless . . . . . . . . . . . . . . . . . . . . . . 121
Charging System Light . . . . . . . . . 135
Check Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 135

Chevrolet Blazer (GMNA-Localizing-U.S./Canada/Mexico-12461541) - 2019 -
CRC - 3/11/19
Index 395
Driving (cont'd)Defensive . . . . . . . . . . . . . . . . . . . . . 178
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 178
For Better Fuel Economy . . . . . . . 24
Hill and Mountain Roads . . . . . . 185
If the Vehicle is Stuck . . . . . . . . . 187
Loss of Control . . . . . . . . . . . . . . . 180
Off-Road . . . . . . . . . . . . . . . . . . . . . 180
Off-Road Recovery . . . . . . . . . . . 179
Vehicle Load Limits . . . . . . . . . . . 188
Wet Roads . . . . . . . . . . . . . . . . . . . 184
Winter . . . . . . . . . . . . . . . . . . . . . . . . 186
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . 170
E
Electric Parking Brake . . . . . . . . . . 206
Electric Parking Brake Light . . . . 138
Electrical Equipment,
Add-On . . . . . . . . . . . . . . . . . . . . . . . 256
Electrical System Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 287
Fuses and Circuit Breakers . . . 286
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 291
Overload . . . . . . . . . . . . . . . . . . . . . 286 Electrical System (cont'd)
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 293
Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . 381
Engine Air Cleaner/Filter . . . . . . . . . . . . . 269
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 135
Compartment Overview . . . . . . . 262
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 132
Cooling System . . . . . . . . . . . . . . . 271
Drive Belt Routing . . . . . . . . . . . . 365
Exhaust . . . . . . . . . . . . . . . . . . . . . . 200
Heater . . . . . . . . . . . . . . . . . . . . . . . . 196
Oil Life System . . . . . . . . . . . . . . . 267
Oil Pressure Light . . . . . . . . . . . . 141
Overheating . . . . . . . . . . . . . . . . . . 275
Power Messages . . . . . . . . . . . . . 151
Running While Parked . . . . . . . . 201
Starting . . . . . . . . . . . . . . . . . . . . . . . 194
Engine Air Filter Life System . . . . 269
Entry Lighting . . . . . . . . . . . . . . . . . . . 166
Equipment, Towing . . . . . . . . . . . . . 251
Event Data Recorders . . . . . . . . . . 378
Exit Lighting . . . . . . . . . . . . . . . . . . . . 167
Extended Parking . . . . . . . . . . . . . . . 199 Extender, Seat Belt . . . . . . . . . . . . . . 77
Exterior Lamp Controls . . . . . . . . . 160
Exterior Lamps Off Reminder . . . 162
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . . . 168
F
FeaturesMemory . . . . . . . . . . . . . . . . . . . . . . . . . 12
Filter, Engine Air Cleaner . . . . . . . . . . . 269
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 162
Flashers, Hazard Warning . . . . . . 164
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 317
Changing . . . . . . . . . . . . . . . . . . . . . 326
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 346
Fluid Automatic Transmission . . . . . . 268
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 278
Washer . . . . . . . . . . . . . . . . . . . . . . . 276
Folding Mirrors . . . . . . . . . . . . . . . . . . 49
Forward Automatic Braking . . . . . 232
Forward Collision Alert
(FCA) System . . . . . . . . . . . . . . . . . 229
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 376
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . 233

Chevrolet Blazer (GMNA-Localizing-U.S./Canada/Mexico-12461541) - 2019 -
CRC - 3/11/19
Index 397
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
How to Wear Seat BeltsProperly . . . . . . . . . . . . . . . . . . . . . . . . 72
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
I
Ignition Positions . . . . . . . . . . . . . . . 192
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 48
Indicator Pedestrian Ahead . . . . . . . . . . . . 140
Vehicle Ahead . . . . . . . . . . . . . . . . 139
Infants and Young Children,
Restraints . . . . . . . . . . . . . . . . . . . . . . 93
Information Publication Ordering . . . . . . . . . . 375
Infotainment . . . . . . . . . . . . . . . . . . . . 169
Infotainment System . . . . . . . . . . . . 379
Instrument Cluster . . . . . . . . . 124, 128
Interior Rearview Mirrors . . . . . . . . . 50
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . . . 332
K
Keyless EntryRemote (RKE) System . . . . . . . . . 27
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
L
Labeling, Tire Sidewall . . . . . . . . . . 298
Lamps Courtesy . . . . . . . . . . . . . . . . . . . . . . 165
Daytime Running (DRL) . . . . . . 163
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 165
Exterior Controls . . . . . . . . . . . . . . 160
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . 162
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . 168
Malfunction Indicator (Check Engine) . . . . . . . . . . . . . 135
On Reminder . . . . . . . . . . . . . . . . . 143
Reading . . . . . . . . . . . . . . . . . . . . . . 165
Lane Change Alert (LCA) . . . . . . . 236
Lane Departure Warning (LDW) . . . . . . . . . . . . . . . . 238
Lane Keep Assist (LKA) . . . . . . . . 238
Lane Keep Assist Light . . . . . . . . . 139
Lap-Shoulder Belt . . . . . . . . . . . . . . . 74
LATCH System
Replacing Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . 103
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . 98
LED Lighting . . . . . . . . . . . . . . . . . . . . 284
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Lighting
Entry . . . . . . . . . . . . . . . . . . . . . . . . . 166
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Illumination Control . . . . . . . . . . . 165
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Lights Airbag Readiness . . . . . . . . . . . . . 134
Antilock Brake System
(ABS) Warning . . . . . . . . . . . . . . 138
Brake System Warning . . . . . . . 137
Charging System . . . . . . . . . . . . . 135
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . 135
Cruise Control . . . . . . . . . . . . . . . . 143
Door Ajar . . . . . . . . . . . . . . . . . . . . . 143
Electric Parking Brake . . . . . . . . 138
Engine Oil Pressure . . . . . . . . . . 141
Flash-to-Pass . . . . . . . . . . . . . . . . . 162
High-Beam On . . . . . . . . . . . . . . . . 142
High/Low Beam Changer . . . . . 162
Lane Keep Assist . . . . . . . . . . . . . 139
Low Fuel Warning . . . . . . . . . . . . 142
Seat Belt Reminders . . . . . . . . . . 133
Security . . . . . . . . . . . . . . . . . . . . . . 142
Service Electric Parking Brake . . . . . . . . . . . . . . . . . . . . . . . 138
StabiliTrak OFF . . . . . . . . . . . . . . . 140
Tire Pressure . . . . . . . . . . . . . . . . . 141

Chevrolet Blazer (GMNA-Localizing-U.S./Canada/Mexico-12461541) - 2019 -
CRC - 3/11/19
400 Index
Reverse Tilt Mirrors . . . . . . . . . . . . . . 50
RoadsDriving, Wet . . . . . . . . . . . . . . . . . . 184
Roadside Assistance Program . . . . . . . . . . . . . . . . . . . . . . . 370
Roof Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . 56
Roof Rack System . . . . . . . . . . . . . . 114
Rotation, Tires . . . . . . . . . . . . . . . . . . 310
Routing, Engine Drive Belt . . . . . . 365
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . . . 201
S
Safety Defects ReportingCanadian Government . . . . . . . . 377
General Motors . . . . . . . . . . . . . . . 377
U.S. Government . . . . . . . . . . . . . 377
Safety Locks . . . . . . . . . . . . . . . . . . . . . 39
Safety System Check . . . . . . . . . . . . 78
Scheduling Appointments . . . . . . . 372
Sealant Kit, Tire . . . . . . . . . . . . . . . . 319
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . 71 Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Extender . . . . . . . . . . . . . . . . . . . . . . . . 77
How to Wear Seat BeltsProperly . . . . . . . . . . . . . . . . . . . . . . . 72
Lap-Shoulder Belt . . . . . . . . . . . . . . 74 Seat Belts (cont'd)
Reminders . . . . . . . . . . . . . . . . . . . . 133
Replacing after a Crash . . . . . . . . 78
Use During Pregnancy . . . . . . . . . . 77
Seats Adjustment, Front . . . . . . . . . . . . . . . 61
Head Restraints . . . . . . . . . . . . . . . . 59
Heated and Ventilated Front . . . . 67
Heated, Rear . . . . . . . . . . . . . . . . . . . 71
Lumbar Adjustment, Front . . . . . . 62
Memory . . . . . . . . . . . . . . . . . . . . . . . . . 64
Power Adjustment, Front . . . . . . . 61
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Reclining Seatbacks . . . . . . . . . . . . 62
Securing Child Restraints . . . . . . . . . . . . . . . . 103, 105
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . 142
OnStar . . . . . . . . . . . . . . . . . . . . . . . 382
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 47
Vehicle Alarm . . . . . . . . . . . . . . . . . . . 47
Service . . . . . . . . . . . . . . . . . . . . . . . . . 175 Accessories and
Modifications . . . . . . . . . . . . . . . . 259
Doing Your Own Work . . . . . . . . 259
Maintenance Records . . . . . . . . 361
Maintenance, General Information . . . . . . . . . . . . . . . . . . 348 Service (cont'd)
Parts Identification Label . . . . . 362
Scheduling Appointments . . . . . 372
Service Electric Parking
Brake Light . . . . . . . . . . . . . . . . . . . . 138
Services Special Application . . . . . . . . . . . 355
Servicing the Airbag . . . . . . . . . . . . . 89
Shift Lock Control Function Check, Automatic
Transmission . . . . . . . . . . . . . . . . . . 280
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 197
Out of Park . . . . . . . . . . . . . . . . . . . 198
Shopping Bag Hooks . . . . . . . . . . . 111
Side Blind Zone Alert (SBZA) . . . 236
Signals, Turn and Lane-Change . . . . . . . . . . . . . . . . . 164
Spare Tire Compact . . . . . . . . . . . . . . . . . . . . . . 331
Special Application Services . . . . 355
Specifications and Capacities . . . . . . . . . . . . . . . . . . . . . 363
Speedometer . . . . . . . . . . . . . . . . . . . 130
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . . . 140
Start Vehicle, Remote . . . . . . . . . . . 34
Starter Switch Check . . . . . . . . . . . 280