2022 CHEVROLET TRAILBLAZER air conditioning

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
316 Service and Maintenance
Because of the way people use vehicles,
maintenance needs vary. There may need to
be more frequent checks and services. The
Additional Required Services - Normal are for
vehicles that:
.Carry passengers and cargo within
recommended limits on the Tire and
Loading Information label. SeeVehicle
Load Limits 0187.
.Are driven on reasonable road surfaces
within legal driving limits.
.Use the recommended fuel. See
Recommended Fuel 0231.
Refer to the information in the Maintenance
Schedule Additional Required Services -
Normal chart.
The Additional Required Services - Severe are
for vehicles that are:
.Mainly driven in heavy city traffic in hot
weather.
.Mainly driven in hilly or mountainous
terrain.
.Frequently towing a trailer.
.Used for high speed or competitive
driving.
.Used for taxi, police, or delivery service. Refer to the information in the Maintenance
Schedule Additional Required Services -
Severe chart.
{Warning
Performing maintenance work can be
dangerous and can cause serious injury.
Perform maintenance work only if the
required information, proper tools, and
equipment are available. If they are not,
see your dealer to have a trained
technician do the work. See
Doing Your
Own Service Work 0245.
Maintenance Schedule
Owner Checks and Services
Check the engine oil level. See Engine Oil
0 250.
Once a Month
.Check the tire inflation pressures. See Tire
Pressure 0285.
.Inspect the tires for wear. See Tire
Inspection 0290.
.Check the windshield washer fluid level.
See Washer Fluid 0259.
Engine Oil Change
When the CHANGE ENGINE OIL SOON DIC
message displays, have the engine oil and
filter changed within the next 1 000 km
(600 mi). If driven under the best conditions,
the engine oil life system may not indicate
the need for vehicle service for up to a year.
The engine oil and filter must be changed at
least once a year and the oil life system
must be reset. Your trained dealer technician
can perform this work. If the engine oil life
system is reset accidentally, service the
vehicle within 5 000 km (3,000 mi) since the
last service. Reset the oil life system when
the oil is changed. See Engine Oil Life
System 0252.
Air Conditioning Desiccant (Replace Every
Seven Years)
The air conditioning system requires
maintenance every seven years. This service
requires replacement of the desiccant to
help the longevity and efficient operation of
the air conditioning system. This service can
be complex. See your dealer.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
Service and Maintenance 319
Maintenance Schedule Additional
Required Services - Normal12 000 km/7,500 mi
24 000 km/15,000 mi
36 000 km/22,500 mi
48 000 km/30,000 mi 60 000 km/37,500 mi
72 000 km/45,000 mi84 000 km/52,500 mi
96 000 km/60,000 mi
108 000 km/67,500 mi 120 000 km/75,000 mi 132 000 km/82,500 mi
144 000 km/90,000 mi 156 000 km/97,500 mi
168 000 km/105,000 mi 180 000 km/112,500 mi
192 000 km/120,000 mi 204 000 km/127,500 mi 216 000 km/135,000 mi
228 000 km/142,500 mi
240 000 km/150,000 mi
Rotate tires and perform Required Services. Check engine oil
level and oil life percentage. Change engine oil and filter,
if needed.
Check engine air filter life percentage and status. Change
engine air filter, if needed. (1)
@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Replace passenger compartment air filter. (2)@ @@@@@
Inspect evaporative control system. (3)@ @@
Replace spark plugs. Inspect spark plug wires and/or boots.@ @
Change rear axle fluid, if equipped with AWD. (4)@
Drain and fill engine cooling system. (5)@
Visually inspect accessory drive belts. (6)@
Replace brake fluid. (7)
Replace windshield wiper blades. (8)
@ @ @ @ @ @ @ @ @ @
Replace hood and/or body lift support gas struts. (9)@ @
Replace air conditioning desiccant. (10)
Replace oil pump drive belt and timing belt. (LIH 1.2L L3
Engine Only). (11)
@

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
320 Service and Maintenance
Footnotes—Maintenance Schedule
Additional Required Services - Normal
(1) 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
0 253.
(2) 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. (3)
Visually check all fuel and vapor lines
and hoses for proper attachment,
connection, routing, and condition.
(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 0255.
(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 0260.
(8) Or every 12 months, whichever comes
first. See Wiper Blade Replacement 0264.
(9) Or every 10 years, whichever comes first.
See Gas Strut(s) 0265.
(10) Replace air conditioning desiccant every
seven years.
(11) The oil pump drive belt and the timing
belt on the LIH engine must be replaced at
150,000 miles (240,000 km) or 15 years,
whichever comes first.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
Service and Maintenance 321
Maintenance Schedule Additional
Required Services - Severe12 000 km/7,500 mi
24 000 km/15,000 mi
36 000 km/22,500 mi
48 000 km/30,000 mi 60 000 km/37,500 mi
72 000 km/45,000 mi84 000 km/52,500 mi
96 000 km/60,000 mi
108 000 km/67,500 mi 120 000 km/75,000 mi 132 000 km/82,500 mi
144 000 km/90,000 mi 156 000 km/97,500 mi
168 000 km/105,000 mi 180 000 km/112,500 mi
192 000 km/120,000 mi 204 000 km/127,500 mi 216 000 km/135,000 mi
228 000 km/142,500 mi
240 000 km/150,000 mi
Rotate tires and perform Required Services. Check engine oil
level and oil life percentage. Change engine oil and filter,
if needed.
Check engine air filter life percentage and status. Change
engine air filter, if needed. (1)
@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Replace passenger compartment air filter. (2)@ @@@@@
Inspect evaporative control system. (3)@ @@
Change automatic transmission fluid. (9 Speed
Transmission Only)@@@
Change automatic transmission fluid and filter. (Continuously
Variable Ratio Transmission (CVT) Only)@@@
Replace spark plugs. Inspect spark plug wires and/or boots.@ @
Change rear axle fluid, if equipped with AWD. (4)@ @
Drain and fill engine cooling system. (5)@
Visually inspect accessory drive belts. (6)@
Replace brake fluid. (7)
Replace windshield wiper blades. (8)
@ @ @ @ @ @ @ @ @ @
Replace hood and/or body lift support gas struts. (9)@@
Replace air conditioning desiccant. (10)
Replace oil pump drive belt and timing belt. (LIH 1.2L L3
Engine Only). (11)
@

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
322 Service and Maintenance
Footnotes—Maintenance Schedule
Additional Required Services - Severe
(1) 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
0 253.
(2) 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.
(3) Visually check all fuel and vapor lines
and hoses for proper attachment,
connection, routing, and condition.
(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 0255.
(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 0260.
(8) Or every 12 months, whichever comes
first. See Wiper Blade Replacement 0264.
(9) Or every 10 years, whichever comes first.
See Gas Strut(s) 0265.
(10) Replace air conditioning desiccant every
seven years.
(11) The oil pump drive belt and the timing
belt on the LIH engine must be replaced at
150,000 miles (240,000 km) or 15 years,
whichever comes first.
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 0307.
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.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
Technical Data 329
Vehicle Data
Capacities and Specifications
ApplicationCapacities
Metric English
Air Conditioning Refrigerant For the air conditioning system refrigerant type and charge amount, see the refrigerant label under the hood. See yourdealer for more information.
Engine Cooling System* 1.2L L3 Gas Engine 6.3 L 6.7 qt
1.3L L3 Gas Engine 7.4 L 7.8 qt
Engine Oil with Filter 1.2L L3 Gas Engine FWD 4.0 L 4.2 qt
1.3L L3 Gas Engine FWD 4.5 L 4.8 qt
1.3L L3 Gas Engine AWD 4.5 L 4.8 qt
Fuel Tank FWD 50 L 53 qt
AWD 50 L 53 qt
Transfer Case Fluid 0.23 L 0.24 qt
Wheel Nut Torque 140 Y100 lb ft

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
Index 351
IndexA
About Driving the Vehicle . . . . . . . . . . . . . . . . . .2
Accessories and Modifications . . . . . . . . . . . 245
Accessory Power . . . . . . . . . . . . . . . . . . . . . . . . . 199
Adaptive Cruise Control . . . . . . . . . . . . . . . . . . . 211
Add-On Electrical Equipment . . . . . . . . . . . . . .241
Additional InformationOnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344
Additional Maintenance and Care . . . . . . . . 322
Adjustments Lumbar, Front Seats . . . . . . . . . . . . . . . . . . . . .39
Agreements Trademarks and License . . . . . . . . . . . . . . . . 165
Air Cleaner/Filter, Engine . . . . . . . . . . . . . . . . 253
Air Conditioning . . . . . . . . . . . . . . . . . . . . . 174, 176
Air Filter
Life System . . . . . . . . . . . . . . . . . . . . . . . . . . . . .253
Air Filter, Passenger Compartment . . . . . . . 179
Air Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .178
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
How Does an Airbag Restrain? . . . . . . . . . . .54
Passenger Sensing System . . . . . . . . . . . . . . .56
What Makes an Airbag Inflate? . . . . . . . . . .54
What Will You See after an AirbagInflates? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
When Should an Airbag Inflate? . . . . . . . . . 53
Where Are the Airbags? . . . . . . . . . . . . . . . . . 52 Airbags
Adding Equipment to the Vehicle . . . . . . . 60
Passenger Status Indicator . . . . . . . . . . . . . . .95
Readiness Light . . . . . . . . . . . . . . . . . . . . . . . . . .95
Servicing Airbag-Equipped Vehicles . . . . . . .59
System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Alarm
Vehicle Security . . . . . . . . . . . . . . . . . . . . . . . . .29
Alert Lane Change . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Side Blind Zone (SBZA) . . . . . . . . . . . . . . . . . . 227
All-Season Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 280
All-Wheel Drive . . . . . . . . . . . . . . . . . . . . . 203, 263 Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
AM-FM Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Antenna Multi-band . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Antilock Brake System (ABS) . . . . . . . . . . . . . 204 Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311
Apple CarPlay and Android Auto . . . . . . . . . 156
Armrest Rear Seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Assistance Program, Roadside . . . . . . . . . . . . 335
Assistance Systems for Driving . . . . . . . . . . 222

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
Index 353
Child Restraints (cont'd)Older Children . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Securing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73, 74
Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Circuit Breakers . . . . . . . . . . . . . . . . . . . . . . . . . . 274
Cleaning Exterior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
Interior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311
Climate Control Systems . . . . . . . . . . . . . . . . . .174 Air Conditioning . . . . . . . . . . . . . . . . . . . . . . . . 174
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Cluster, Instrument . . . . . . . . . . . . . . . . . . . . . . . 89
Collision Damage Repair . . . . . . . . . . . . . . . . . 337
Compact Spare Tire . . . . . . . . . . . . . . . . . . . . . . 301
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Connected Services Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 349
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350
Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348
Connections Connected Services . . . . . . . . . . . . . . . . . . . . 349
Control
Traction and Electronic Stability . . . . . . . 206
Control of a Vehicle . . . . . . . . . . . . . . . . . . . . . .183 Controls
Steering Wheel . . . . . . . . . . . . . . . . . . . . . . . . . 123
Convex Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Coolant Engine Temperature Gauge . . . . . . . . . . . . . 94
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174, 176
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . 255
Courtesy Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Courtesy Transportation Program . . . . . . . . 337
Coverage Explanations . . . . . . . . . . . . . . . . . . . 146
Covers Rear Compartment/Storage Panel . . . . . . . .79
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103
Cruise Control, Adaptive . . . . . . . . . . . . . . . . . . 211
Cupholders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Customer Assistance . . . . . . . . . . . . . . . . . . . . . 334
Offices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
Text Telephone (TTY) Users . . . . . . . . . . . . 334
Customer Information
Publications Ordering Information . . . . . 339
Customer Satisfaction Procedure . . . . . . . . . 332
Cybersecurity . . . . . . . . . . . . . . . . . . . . . . . . . . . . .341
D
Damage Repair, Collision . . . . . . . . . . . . . . . . . 337
Danger, Warning, and Caution . . . . . . . . . . . . . .2 Data Collection
Infotainment System . . . . . . . . . . . . . . . . . . 342
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 342
Data Recorders, Event . . . . . . . . . . . . . . . . . . . 342
Database Coverage Explanations . . . . . . . . . 146
Daytime Running Lamps (DRL) . . . . . . . . . . . . 116
Defensive Driving . . . . . . . . . . . . . . . . . . . . . . . . .182
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Destination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Diagnostics Connected Services . . . . . . . . . . . . . . . . . . . . 350
Distracted Driving . . . . . . . . . . . . . . . . . . . . . . . . .182
Dome Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . . 21
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Power Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Drive Belt Routing, Engine . . . . . . . . . . . . . . . . 331
Drive Systems All-Wheel Drive . . . . . . . . . . . . . . . . . . . 203, 263
Driver Teen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Driver Assistance Systems . . . . . . . . . . . . . . . 219
Driver Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Driver Information Center (DIC) . . . . . .104, 107
Driver Mode Control . . . . . . . . . . . . . . . . . . . . . 208