2022 CHEVROLET BLAZER brake

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15165663) - 2022 - CRC - 4/27/21
256 Driving and Operating
wires below the headlamp switch for the
electric trailer brake controller. The harness
contains the following wires:
.Blue: Electric Trailer Brakes
.Blue: Battery Feed
.White/Blue: Brake Apply Signal
.Black: Ground
Refer to the aftermarket electric trailer brake
controller owner's manual to determine wire
color coding of the electric trailer brake
controller. The wire colors on the brake
controller may be different from the vehicle.
The electric trailer brake controller should be
installed by your dealer or a qualified
service center.
Trailer Lamps
Always check all trailer lamps are working at
the beginning of each trip, and periodically
on longer trips.
Turn Signals When Towing a Trailer
When properly connected, the trailer turn
signals will illuminate to indicate the vehicle
is turning, changing lanes, or stopping.
When towing a trailer, the arrows on the
instrument cluster will illuminate even if the
trailer is not properly connected or the bulbs
are burned out.
Tow/Haul Mode
For instructions on how to enter Tow/Haul
Mode, see Driver Mode Control 0219.
Tow/Haul assists when pulling a heavy
trailer or a large or heavy load. See Driver
Mode Control 0219.
Tow/Haul Mode is designed to be most
effective when the vehicle and trailer
combined weight is at least 75% of the
vehicle's Gross Combined Weight Rating
(GCWR). See “Weight of the Trailer” under
Trailer Towing 0250. Tow/Haul Mode is
most useful when towing a heavy trailer or
carrying a large or heavy load:
.Through rolling terrain.
.In stop-and-go traffic.
.In busy parking lots.
Operating the vehicle in Tow/Haul Mode
when lightly loaded or not towing will not
cause damage; however, it is not
recommended and may result in unpleasant
engine and transmission driving
characteristics and reduced fuel economy.
Trailer Sway Control (TSC)
Vehicles with StabiliTrak/Electronic Stability
Control (ESC) have a Trailer Sway Control
(TSC) feature. Trailer sway is unintended
side-to-side motion of a trailer while towing.
If the vehicle is towing a trailer and the TSC
detects that sway is increasing, the vehicle
brakes are selectively applied at each wheel,
to help reduce excessive trailer sway.
If equipped with the Integrated Trailer Brake
Control (ITBC) system, and the trailer has an
electric brake system, StabiliTrak/ESC may
also apply the trailer brakes.
If TSC is enabled, the Traction Control
System (TCS)/StabiliTrak light will flash on
the instrument cluster. Reduce vehicle speed
by gradually removing your foot from the
accelerator. If trailer sway continues,
StabiliTrak/ESC can reduce engine torque to
help slow the vehicle. TSC will not function
if StabiliTrak/ESC is turned off. See Traction
Control/Electronic Stability Control 0217.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Vehicle Care 259
Vehicle Care
General Information
General Information . . . . . . . . . . . . . . . . . . 260
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . . . . . 260
Accessories and Modifications . . . . . . . . . 260
Vehicle Checks
Doing Your Own Service Work . . . . . . . . . 261
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
Engine Compartment Overview . . . . . . . . 263
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Engine Oil Life System . . . . . . . . . . . . . . . . 268
Automatic Transmission Fluid . . . . . . . . . 269
Engine Air Filter Life System . . . . . . . . . . 269
Engine Air Cleaner/Filter . . . . . . . . . . . . . . 270
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 271
Engine Overheating . . . . . . . . . . . . . . . . . . . 274
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 275
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
Battery - North America . . . . . . . . . . . . . . . 278
All-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . . . 278
Automatic Transmission Shift Lock Control Function Check . . . . . . . . . . . . . . 278
Park Brake and P (Park) Mechanism Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279 Wiper Blade Replacement . . . . . . . . . . . . . 279
Windshield Replacement . . . . . . . . . . . . . . 280
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . . . . . . . 281
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . 281
High Intensity Discharge (HID)
Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
Back-Up Lamps . . . . . . . . . . . . . . . . . . . . . . . . 282
Electrical System
High Voltage Devices and Wiring . . . . . . 282
Electrical System Overload . . . . . . . . . . . . 282
Fuses and Circuit Breakers . . . . . . . . . . . . . 284
Engine Compartment Fuse Block . . . . . . 285
Instrument Panel Fuse Block . . . . . . . . . . 288
Rear Compartment Fuse Block . . . . . . . . 290
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293
All-Season Tires . . . . . . . . . . . . . . . . . . . . . . . 293
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 294
Summer Tires . . . . . . . . . . . . . . . . . . . . . . . . . 294
Tire Sidewall Labeling . . . . . . . . . . . . . . . . . 294
Tire Designations . . . . . . . . . . . . . . . . . . . . . . 296
Tire Terminology and Definitions . . . . . . 297
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 299 Tire Pressure for High-Speed
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
Tire Pressure Monitor System . . . . . . . . . 301
Tire Pressure Monitor Operation . . . . . . 302
Tire Inspection . . . . . . . . . . . . . . . . . . . . . . . . 305
Tire Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . 305
When It Is Time for New Tires . . . . . . . . 306
Buying New Tires . . . . . . . . . . . . . . . . . . . . . 307
Different Size Tires and Wheels . . . . . . . 308
Uniform Tire Quality Grading . . . . . . . . . 308
Wheel Alignment and Tire Balance . . . . 310
Wheel Replacement . . . . . . . . . . . . . . . . . . . 310
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . . 311
Tire Sealant and Compressor Kit . . . . . . . 312
Storing the Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . . . . . . . . 318
Tire Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 318
Compact Spare Tire . . . . . . . . . . . . . . . . . . . . 322
Jump Starting
Jump Starting - North America . . . . . . . . 323
Towing the Vehicle
Towing the Vehicle . . . . . . . . . . . . . . . . . . . . 325
Recreational Vehicle Towing . . . . . . . . . . . 326
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . . . . . . . . . . . 329
Interior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 333
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15165663) - 2022 - CRC - 4/27/21
260 Vehicle Care
General Information
For service and parts needs, visit your
dealer. You will receive genuine GM parts
and GM-trained and supported service
people.
Genuine GM parts have one of these marks:
California Perchlorate Materials
Requirements
Certain types of automotive applications,
such as airbag initiators, seat belt
pretensioners, and lithium batteries
contained in electronic keys, may contain
perchlorate materials. Perchlorate Material–
special handling may apply. See
www.dtsc.ca.gov/hazardouswaste/
perchlorate.
Accessories and Modifications
Adding non-dealer accessories or making
modifications to the vehicle can affect
vehicle performance and safety, including
such things as airbags, braking, stability,
ride and handling, emissions systems,
aerodynamics, durability, and electronic
systems like antilock brakes, traction control,
and stability control. These accessories or
modifications could even cause malfunction
or damage not covered by the vehicle
warranty. Damage to suspension components caused
by modifying vehicle height outside of
factory settings will not be covered by the
vehicle warranty.
Damage to vehicle components resulting
from modifications or the installation or use
of non-GM certified parts, including control
module or software modifications, is not
covered under the terms of the vehicle
warranty and may affect remaining
warranty coverage for affected parts.
GM Accessories are designed to complement
and function with other systems on the
vehicle. See your dealer to accessorize the
vehicle using genuine GM Accessories
installed by a dealer technician.
Also, see
Adding Equipment to the
Airbag-Equipped Vehicle 060.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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264 Vehicle Care
1.Engine Air Cleaner/Filter 0270.
2. Engine Oil Fill Cap. See Engine Oil0266.
3. Engine Oil Dipstick. See Engine Oil0266.
4. Engine Cooling Fan (Out of View). See Cooling System 0271.
5. Brake Fluid Reservoir. See Brake Fluid
0 277.
6. Battery - North America 0278.
7. Engine Coolant Surge Tank and Pressure Cap. See Cooling System 0271.
8. Positive (+) Battery Terminal (Under Cover). See Jump Starting - North
America 0323.
9. Windshield Washer Fluid Reservoir. See Washer Fluid 0275.
10. Engine Compartment Fuse Block 0285.
11. Remote Negative (-) Battery Terminal. SeeJump Starting - North America 0323.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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266 Vehicle Care
1.Engine Air Cleaner/Filter 0270.
2. Engine Oil Fill Cap. See Engine Oil0266.
3. Engine Oil Dipstick. See Engine Oil0266.
4. Engine Cooling Fan (Out of View). See Cooling System 0271.
5. Brake Fluid Reservoir. See Brake Fluid
0 277.
6. Battery - North America 0278.
7. Engine Coolant Surge Tank and Pressure Cap. See Cooling System 0271.
8. Positive (+) Battery Terminal. See Jump
Starting - North America 0323.
9. Windshield Washer Fluid Reservoir. See Washer Fluid 0275.
10. Engine Compartment Fuse Block 0285.
11. Remote Negative (-) Battery Terminal. SeeJump Starting - North America 0323.Engine Oil
To ensure proper engine performance and
long life, careful attention must be paid to
engine oil. Following these simple, but
important steps will help protect your
investment:
.Use engine oil approved to the proper
specification and of the proper viscosity
grade. See “Selecting the Right Engine
Oil” in this section.
.Check the engine oil level regularly and
maintain the proper oil level. See
“Checking Engine Oil” and“When to Add
Engine Oil” in this section.
.Change the engine oil at the appropriate
time. SeeEngine Oil Life System 0268.
.Always dispose of engine oil properly. See
“What to Do with Used Oil” in this
section.
Checking Engine Oil
Check the engine oil level regularly, every
650 km (400 mi), especially prior to a long
trip. The engine oil dipstick handle is a loop.
See Engine Compartment Overview 0263 for
the location.
{Warning
The engine oil dipstick handle may be
hot; it could burn you. Use a towel or
glove to touch the dipstick handle.
If a low oil Driver Information Center (DIC)
message displays, check the oil level.
Follow these guidelines:
.To get an accurate reading, park the
vehicle on level ground. Check the engine
oil level after the engine has been off for
at least two hours. Checking the engine
oil level on steep grades or too soon after
engine shutoff can result in incorrect
readings. Accuracy improves when
checking a cold engine prior to starting.
Remove the dipstick and check the level.
.If unable to wait two hours, the engine
must be off for at least 15 minutes if the
engine is warm, or at least 30 minutes if
the engine is not warm. Pull out the
dipstick, wipe it with a clean paper towel
or cloth, then push it back in all the way.
Remove it again, keeping the tip down,
and check the level.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15165663) - 2022 - CRC - 4/27/21
274 Vehicle Care
3. Fill the coolant surge tank with theproper mixture to the indicated
level mark.
4. With the coolant surge tank pressure cap off, start the engine and let it run until
you can feel the upper radiator hose
getting hot. Watch out for the engine
cooling fan.
By this time, the coolant level inside the
coolant surge tank may be lower. If the
level is lower, add more of the proper
mixture to the coolant surge tank until
the level reaches the indicated
level mark.
5. Replace the pressure cap tightly. 6. Verify coolant level after the engine is
shut off and the coolant is cold.
If necessary, repeat coolant fill procedure
Steps 1–6.
If the coolant still is not at the proper
level when the system cools down again,
see your dealer.
Caution
If the pressure cap is not tightly installed,
coolant loss and engine damage may
occur. Be sure the cap is properly and
tightly secured.
2.0L L4 Engine Only - Automatic Coolant
Service Fill Instructions
If equipped, this feature assists in filling and
removing air from the cooling system after
service of components or when coolant is
added after being too low.
To activate the fill and air removal process:
1. With a cold system, add coolant to the indicated mark on the surge tank.
2. Replace the cap on the surge tank.
3. Connect the vehicle to a battery charger.
4. Turn the ignition to Service Mode. See Ignition Positions 0205. 5. Turn off the air conditioning.
6. Set the parking brake.
7. At the same time, press the accelerator
and the brake for two seconds, then
release.
At the end of the cycle, check the coolant
level in the surge tank and add coolant if it
is low. Turn off the vehicle, allow the
Electronic Control Module (ECM) to go to
sleep, about two minutes, and repeat
Steps 4–7.
Listen for pump activation and movement of
the control valves while watching the level
of the coolant in the surge tank. If the tank
empties, turn the ignition off, carefully
remove the surge tank cap, refill to the
indicated mark, and repeat Steps 4–7. The
fill and air removal process will run for
approximately 10 minutes.
Engine Overheating
The vehicle has several indicators to warn of
the engine overheating.
There is an engine coolant temperature
gauge on the instrument cluster. See Engine
Coolant Temperature Gauge 099. The
vehicle may also display a message on the
Driver Information Center (DIC).

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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276 Vehicle Care
Adding Washer Fluid
Open the cap with the washer symbol on it.
Add washer fluid until the tank is full. See
Engine Compartment Overview0263 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.
(Continued)
Caution (Continued)
.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 0352.
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.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Vehicle Care 277
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.
Brake Fluid
The brake master cylinder reservoir is filled
with GM approved DOT 4 brake fluid as
indicated on the reservoir cap. SeeEngine
Compartment Overview 0263 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 0104.
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 0339.
What to Add
Use only GM approved DOT 4 brake fluid
from a clean, sealed container. See
Recommended Fluids and Lubricants 0347.
{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.
Caution
If brake fluid is spilled on the vehicle's
painted surfaces, the paint finish can be
damaged. Immediately wash off any
painted surface.