Front CHEVROLET BLAZER 2020 Owner's Manual

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
Vehicle Care 325
.Whether the vehicle is ready to
be towed. Just as preparing the
vehicle for a long trip, make sure
the vehicle is prepared to be
towed.
Caution
Use of a shield mounted in front
of the vehicle grille could restrict
airflow and cause damage to the
transmission. The repairs would
not be covered by the vehicle
warranty. If using a shield, only
use one that attaches to the
towing vehicle.
Dinghy Towing
For vehicles being dinghy towed,
the vehicle should be run at the
beginning of each day and at each
RV fuel stop for about five minutes.
This will ensure proper lubrication of
transmission components. To tow the vehicle from the front
with all four wheels on the ground:
1. Position the vehicle to be towed and secure it to the
towing vehicle.
2. Put the vehicle in N (Neutral).
3. Shut the engine off (vehicle will remain in accessory mode).
4. Disconnect the negative (−) terminal connector from the
12-volt battery.
5. Close the hood of the vehicle.
Caution
If the vehicle is towed without
performing each of the steps
listed under “Dinghy Towing,” the
automatic transmission could be
damaged. Be sure to follow all
steps of the dinghy towing
procedure prior to and after
towing the vehicle.
Caution
If 105 km/h (65 mph) is exceeded
while towing the vehicle, it could
be damaged. Never exceed
105 km/h (65 mph) while towing
the vehicle.
Once the destination is reached: 1. Shift the vehicle to P (Park).
2. Reconnect the negative (−) terminal connector to the
12-volt battery.
3. Start the engine and let it idle for more than three minutes
before driving the vehicle.
Caution
Too much or too little fluid can
damage the transmission. Be
sure that the transmission fluid is
at the proper level before towing
with all four wheels on the
ground.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
326 Vehicle Care
Caution
Do not tow a vehicle with the front
drive wheels on the ground if one
of the front tires is a compact
spare tire. Towing with two
different tire sizes on the front of
the vehicle can cause severe
damage to the transmission.
Dolly Towing
To tow a vehicle from the front with
the rear wheels on the ground:1. Put the front wheels on a dolly. 2. Move the shift lever to
P (Park). See Shifting Into Park
0 184.
3. Set the parking brake.
4. Secure the vehicle to the dolly.
5. Follow the dolly manufacturer ’s
instructions for preparing the
vehicle and dolly for towing.
6. Release the parking brake.
7. Turn the vehicle off.
8. Disconnect the negative (−) terminal connector from the
12-volt battery.
9. Close the hood of the vehicle.
Towing the Vehicle from
the Rear

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
Vehicle Care 331
Caution (Continued)
dust and ice. Always wash the
chrome with soap and water after
exposure.
Caution
To avoid surface damage on
wheels and wheel trim, do not
use strong soaps, chemicals,
abrasive polishes, cleaners,
or brushes. Use only GM
approved cleaners. Do not drive
the vehicle through an automatic
car wash that uses silicon carbide
tire/wheel cleaning brushes.
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 rotorsfor 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
electrical connections, binding,
cracks, chafing, etc.
Visually check constant velocity joint
boots and axle seals for leaks.
Body Component Lubrication
Lubricate all key lock cylinders,
hood hinges, liftgate hinges, and the
steel fuel door 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.
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.
Original manufacturer replacement
parts will provide the corrosion
protection while maintaining the
vehicle warranty.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
342 Service and Maintenance
Footnotes—Maintenance
Schedule Additional Required
Services - Normal
(1) Or every two years, whichever
comes first. More frequent
passenger compartment air filter
replacement may be needed if
driving in areas with heavy traffic,
poor air quality, high dust levels,
or environmental allergens.
Passenger compartment air filter
replacement may also be needed if
there is reduced airflow, window
fogging, or odors. Your GM dealer
can help determine when to replace
the filter. (2)
Visually check all fuel and vapor
lines and hoses for proper
attachment, connection, routing, and
condition.
(3) Or every four years, whichever
comes first. If driving in dusty
conditions, inspect the filter at each
oil change or more often as needed.
See Engine Air Cleaner/Filter 0257.
(4) 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 transfer case fluid.
Contaminated fluid will decrease the
life of the transfer case and/or axles
and should be replaced. (5)
Or every five years, whichever
comes first. See Cooling System
0 259.
(6) Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage;
replace, if needed.
(7) Replace brake fluid every five
years. See Brake Fluid 0267.
(8) Or every 12 months, whichever
comes first. See Wiper Blade
Replacement 0270.
(9) Or every 10 years, whichever
comes first. See Gas Strut(s)0271.
(10) Replace air conditioning
desiccant every seven years.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
344 Service and Maintenance
Footnotes—Maintenance
Schedule Additional Required
Services - Severe
(1) Or every two years, whichever
comes first. More frequent
passenger compartment air filter
replacement may be needed if
driving in areas with heavy traffic,
poor air quality, high dust levels,
or environmental allergens.
Passenger compartment air filter
replacement may also be needed if
there is reduced airflow, window
fogging, or odors. Your GM dealer
can help determine when to replace
the filter.
(2) Visually check all fuel and vapor
lines and hoses for proper
attachment, connection, routing, and
condition.
(3) Or every four years, whichever
comes first. If driving in dusty
conditions, inspect the filter at each
oil change or more often as needed.
See Engine Air Cleaner/Filter 0257.
(4) 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 transfer case fluid.
Contaminated fluid will decrease the
life of the transfer case and/or axles
and should be replaced.
(5)
Or every five years, whichever
comes first. See Cooling System
0 259.
(6) Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage;
replace, if needed.
(7) Replace brake fluid every five
years. See Brake Fluid 0267.
(8) Or every 12 months, whichever
comes first. See Wiper Blade
Replacement 0270.
(9) Or every 10 years, whichever
comes first. See Gas Strut(s)0271.
(10) Replace air conditioning
desiccant every seven years.Special Application
Services
. Severe Commercial Use
Vehicles Only: Lubricate chassis
components every oil change.
. Have underbody flushing service
performed. See "Underbody
Maintenance" in Exterior Care
0 327.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
Service and Maintenance 349
Maintenance Replacement Parts
Replacement parts identified below by name, part number, or specification can be obtained from your dealer.Part GM Part Number ACDelco Part Number
Engine Air Cleaner/Filter 2.0L L4 Engine 23321606 A3212C
2.5L L4 Engine 23321606 A3212C
3.6L V6 Engine 23321606 A3212C
Engine Oil Filter 2.0L L4 Engine 55495105 PF66
2.5L L4 Engine 12696048 PF64
3.6L V6 Engine 12693541 UPF63R
Passenger Compartment Air Filter 13508023 CF185
Spark Plugs 2.0L L4 Engine 55504354 41-103-IP
2.5L L4 Engine 12627160 41-115
3.6L V6 Engine 12646780 41-130
Wiper Blades Front Driver –60.0 cm (23.6 in) 84586337 —
Front Passenger –50 cm (19.7 in) 84574892 —
Rear –30.0 cm (11.8 in) 84215609 —

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
Technical Data 351
Technical Data
Vehicle Identification
Vehicle IdentificationNumber (VIN) . . . . . . . . . . . . . . . 351
Service Parts Identification . . . 351
Vehicle Data
Capacities and Specifications . . . . . . . . . . . . . . . 352
Engine Drive Belt Routing . . . . 354
Vehicle Identification
Vehicle Identification
Number (VIN)
This legal identifier is in the front
corner of the instrument panel, on
the driver side of the vehicle. It can
be seen through the windshield from
outside. The Vehicle Identification
Number (VIN) also appears on the
Vehicle Certification and Service
Parts labels and certificates of title
and registration.
Engine Identification
The eighth character in the VIN is
the engine code. This code
identifies the vehicle's engine,
specifications, and replacement parts. See
“Engine Specifications”
under Capacities and Specifications
0 352 for the vehicle's engine code.
Service Parts
Identification
There may be a large barcode on
the certification label on the center
pillar that you can scan for the
following information:
.
Vehicle Identification
Number (VIN)
. Model designation
. Paint information
. Production options
If there is not a large barcode on
this label, then you will find this
same information in the rear
compartment, under the load floor,
inside the cargo storage shelf unit.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
378 Index
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . . . 245
Accessory Power . . . . . . . . . . . . . . . 184
Active Fuel Management . . . . . . . 185
Adaptive Cruise Control . . . . . . . . 200
Add-On Electrical Equipment . . . 242
Additional Information OnStar . . . . . . . . . . . . . . . . . . . . . . . 371
Additional Maintenance
and Care . . . . . . . . . . . . . . . . . . . . . . 345
Adjustments Lumbar, Front Seats . . . . . . . . . . . . 43
Air Cleaner/Filter, Engine . . . . . . . 257
Air Conditioning . . . . . . . . . . . . . . . . 155
Air Filter
Life System . . . . . . . . . . . . . . . . . . . 257
Air Filter, Passenger Compartment . . . . . . . . . . . . . . . . . 160
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 159
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . 71
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . . . 64
Passenger Sensing System . . . . 66
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 64 Airbag System (cont'd)
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . . . 64
When Should an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 63
Where Are the Airbags? . . . . . . . . 61
Airbags
Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . . . 70
Passenger Status Indicator . . . .119
Readiness Light . . . . . . . . . . . . . . .119
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . 70
System Check . . . . . . . . . . . . . . . . . . 60
Alarm Vehicle Security . . . . . . . . . . . . . . . . 28
Alert Lane Change . . . . . . . . . . . . . . . . . 221
Side Blind Zone (SBZA) . . . . . . 221
All-Season Tires . . . . . . . . . . . . . . . . 285
All-Wheel Drive . . . . . . . . . . . . 191, 269
Antilock Brake System (ABS) . . . 191 Warning Light . . . . . . . . . . . . . . . . . 123
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . 327
Interior . . . . . . . . . . . . . . . . . . . . . . . . 332
Armrest Storage . . . . . . . . . . . . . . . . . 92

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
Index 379
Assistance Program,Roadside . . . . . . . . . . . . . . . . . . . . . . 359
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . 215
Assistance Systems for Parking and Backing . . . . . . . . . . 210
Auto Stop
Stop/Start System . . . . . . . . . . . . 181
Automatic Dimming Mirrors . . . . . . . . . . . . . . . . 31
Door Locks . . . . . . . . . . . . . . . . . . . . . 19
Emergency Braking (AEB) . . . . 217
Headlamp System . . . . . . . . . . . . 148
Transmission . . . . . . . . . . . . . . . . . 187
Transmission Fluid . . . . . . . . . . . 256
Automatic Transmission
Manual Mode . . . . . . . . . . . . . . . . . 189
Shift Lock Control FunctionCheck . . . . . . . . . . . . . . . . . . . . . . . 269
B
BatteryExterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . 153
Load Management . . . . . . . . . . . . 152
Power Protection . . . . . . . . . . . . . 152
Battery - North America . . . . 268, 321
Blade Replacement, Wiper . . . . . 270 Brake
Electric Boost . . . . . . . . . . . . . . . . . 191
Parking, Electric . . . . . . . . . . . . . . 192
System Warning Light . . . . . . . . 122
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 266 Antilock . . . . . . . . . . . . . . . . . . . . . . . 191
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 193
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 267
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 164 AutomaticEmergency (AEB) . . . . . . . . . . . 217
Braking System Front Pedestrian (FPB) . . . . . . . 219
Break-In, New Vehicle . . . . . . . . . . 178
Bulb Replacement Back-up Lamps . . . . . . . . . . . . . . . 273
Headlamp Aiming . . . . . . . . . . . . . 273
Headlamps . . . . . . . . . . . . . . . . . . . 273
High Intensity Discharge
(HID) Lighting . . . . . . . . . . . . . . . 273
Buying New Tires . . . . . . . . . . . . . . . 301
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 102
California Perchlorate Materials
Requirements . . . . . . . . . . . . . . . 245 California
Proposition
65 Warning . . . . . . . . . .244, 268, 321,
Back Cover
Canadian Vehicle Owners . . . . . . . . 2
Capacities and Specifications . . . . . . . . . . . . . . . . . 352
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 186
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . 21
Winter Driving . . . . . . . . . . . . . . . . 172
Cargo Management System . . . . . . . . . . . 94
Tie-Downs . . . . . . . . . . . . . . . . . . . . . . 93
Caution, Danger, and Warning . . . . 3
Center Console Storage . . . . . . . . . 92
Chains, Tire . . . . . . . . . . . . . . . . . . . . 305
Charging Wireless . . . . . . . . . . . . . . . . . . . . . . 104
Charging System Light . . . . . . . . . 120
Check Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 120
Child Restraints Infants and Young Children . . . . . 73
Lower Anchors and Tethers
for Children . . . . . . . . . . . . . . . . . . . 79
Older Children . . . . . . . . . . . . . . . . . . 72

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
382 Index
Front Pedestrian Braking(FPB) System . . . . . . . . . . . . . . . . . 219
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . 42
Heated and Ventilated . . . . . . . . . . 47
Fuel Additives . . . . . . . . . . . . . . . . . . . . . 226
Economy, Driving for Better . . . 162
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 228
Filling the Tank . . . . . . . . . . . . . . . 227
Foreign Countries . . . . . . . . . . . . 226
Gauge . . . . . . . . . . . . . . . . . . . . . . . . .115
Low Fuel Warning Light . . . . . . . 127
Management, Active . . . . . . . . . . 185
Prohibited Fuels . . . . . . . . . . . . . . 226
Recommended . . . . . . . . . . . . . . . 226
Top Tier . . . . . . . . . . . . . . . . . . . . . . 225
Fuses Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 276
Fuses and Circuit Breakers . . . 275
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 279
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 282G
Garage Door Opener . . . . . . . . . . . 141Programming . . . . . . . . . . . . . . . . . 141
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 271
Gauges Engine CoolantTemperature . . . . . . . . . . . . . . . . .116
Engine Oil Temperature . . . . . . . .116
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . .115
Odometer . . . . . . . . . . . . . . . . . . . . . .114
Speedometer . . . . . . . . . . . . . . . . . .114
Tachometer . . . . . . . . . . . . . . . . . . . .114
Trip Odometer . . . . . . . . . . . . . . . . .114
Voltmeter . . . . . . . . . . . . . . . . . . . . . .117
Warning Lights and Indicators . . . . . . . . . . . . . . . . . . . 107
General Information Service and Maintenance . . . . . 337
Towing . . . . . . . . . . . . . . . . . . . . . . . . 229
Vehicle Care . . . . . . . . . . . . . . . . . . 244
Glove Box . . . . . . . . . . . . . . . . . . . . . . . 91
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . 359
H
Hazard Warning Flashers . . . . . . . 149
Head Restraints . . . . . . . . . . . . . . . . . 40 Headlamps
Aiming . . . . . . . . . . . . . . . . . . . . . . . . 273
Automatic . . . . . . . . . . . . . . . . . . . . . 148
Bulb Replacement . . . . . . . . . . . . 273
Daytime Running
Lamps (DRL) . . . . . . . . . . . . . . . . 147
Flash-to-Pass . . . . . . . . . . . . . . . . . 147
High Intensity Discharge
(HID) Lighting . . . . . . . . . . . . . . . 273
High-Beam On Light . . . . . . . . . . 128
High/Low Beam Changer . . . . . 147
Lamps On Reminder . . . . . . . . . 128
Heated Rear Seats . . . . . . . . . . . . . . . . . . . . . 51
Steering Wheel . . . . . . . . . . . . . . . . . 99
Heated and Ventilated Front
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Heated Mirrors . . . . . . . . . . . . . . . . . . . 31
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . 182
Heating . . . . . . . . . . . . . . . . . . . . . . . . . 155
High Voltage Devices and
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . 274
High-Beam On Light . . . . . . . . . . . . 128
High-Speed Operation . . . . . . . . . . 293
Hill and Mountain Roads . . . . . . . . 171
Hill Start Assist (HSA) . . . . . . . . . . 194
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 246