coolant CHEVROLET TRAILBLAZER 2023 User Guide

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
Vehicle Care 245
1. Windshield Washer Fluid Reservoir. SeeWasher Fluid 0255.
2. Engine Coolant Surge Tank and Pressure Cap. See Cooling System 0250.
3. Engine Oil Fill Cap. See Engine Oil0245.
4. Engine Oil Dipstick. See Engine Oil0245.
5. Engine Cooling Fan (Out of View). See Cooling System 0250.
6. Engine Air Cleaner/Filter 0248.
7. Brake Fluid Reservoir. See Brakes0255.
8. Positive (+) Battery Terminal. See Jump
Starting - North America 0299.
9. Battery - North America 0257.
10. Engine Compartment Fuse Block 0271.
11. Remote Negative (-) Battery Terminal. SeeJump Starting - North America 0299
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 0247.
.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 0242 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.
When to Add Engine Oil
L3T 1.3L L3 Engine

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
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Vehicle Care 251
1. Engine Coolant Surge Tank andPressure Cap
2. Engine Cooling Fan (Out of View)
{Warning
An underhood electric fan can start up
even when the engine is not running and
can cause injury. Keep hands, clothing,
and tools away from any underhood
electric fan.
{Warning
Do not touch heater or radiator hoses,
or other engine parts. They can be very
hot and can burn you. Do not run the
engine if there is a leak; all coolant could
leak out. That could cause an engine fire
and can burn you. Fix any leak before
driving the vehicle.
Engine Coolant
The cooling system in the vehicle is filled
with DEX-COOL engine coolant. This coolant
is designed to remain in the vehicle for five
years or 240 000 km (150,000 mi),
whichever occurs first. The following explains the cooling system
and how to check and add coolant when it
is low. If there is a problem with engine
overheating, see
Engine Overheating 0254.
What to Use
{Warning
Plain water, or other liquids such as
alcohol, can boil before the proper
coolant mixture will. With plain water or
the wrong mixture, the engine could get
too hot but there would not be an
overheat warning. The engine could catch
fire and you or others could be burned.
Use a 50/50 mixture of clean drinkable
water and DEX-COOL coolant. This mixture:
.Gives freezing protection down to −37 °C
(−34 °F), outside temperature.
.Gives boiling protection up to 129 °C
(265 °F), engine temperature.
.Protects against rust and corrosion.
.Will not damage aluminum parts.
.Helps keep the proper engine
temperature.
Caution
Do not use anything other than a mix of
DEX-COOL coolant that meets GM
Standard GMW3420 and clean, drinkable
water. Anything else can cause damage
to the engine cooling system and the
vehicle, which would not be covered by
the vehicle warranty.
Never dispose of engine coolant by putting
it in the trash, pouring it on the ground,
or into sewers, streams, or bodies of water.
Have the coolant changed by an authorized
service center, familiar with legal
requirements regarding used coolant
disposal. This will help protect the
environment and your health.
Checking Coolant
The vehicle must be on a level surface when
checking the coolant level.
It is normal to see coolant moving in the
upper coolant hose return line when the
engine is running.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
252 Vehicle Care
Check to see if coolant is visible in the
coolant surge tank. If the coolant inside the
coolant surge tank is boiling, do not do
anything else until it cools down.
If coolant is visible but the coolant level is
not at or above the mark pointed to, add a
50/50 mixture of clean drinkable water and
DEX-COOL coolant.
Be sure the cooling system is cool before
this is done.
If no coolant is visible in the coolant surge
tank, add coolant as follows:
How to Add Coolant to the Coolant
Surge Tank
{Warning
Steam and scalding liquids from a hot
cooling system are under pressure.
Turning the pressure cap, even a little,
can cause them to come out at high
speed and you could be burned. Never
turn the cap when the cooling system,
including the pressure cap, is hot. Wait
for the cooling system and pressure cap
to cool.
{Warning
Plain water, or other liquids such as
alcohol, can boil before the proper
coolant mixture will. With plain water or
the wrong mixture, the engine could get
too hot but there would not be an
overheat warning. The engine could catch
fire and you or others could be burned.
{Warning
Spilling coolant on hot engine parts can
burn you. Coolant contains ethylene
glycol and it will burn if the engine parts
are hot enough.
Caution
Failure to follow the specific coolant fill
procedure could cause the engine to
overheat and could cause system
damage. If coolant is not visible in the
surge tank, contact your dealer.
If no problem is found, check to see if
coolant is visible in the coolant surge tank.
If coolant is visible but the coolant level is
not at the indicated level mark, add a
50/50 mixture of clean, drinkable water and
DEX-COOL coolant at the coolant surge tank,
but be sure the cooling system, including
the coolant surge tank pressure cap, is cool
before you do it.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
Vehicle Care 253
1. Remove the coolant surge tank pressurecap when the cooling system, including
the coolant surge tank pressure cap and
upper radiator hose, is no longer hot.
Turn the pressure cap slowly
counterclockwise about one-quarter of a
turn. If you hear a hiss, wait for that to
stop. This will allow any pressure still
left to be vented out the discharge hose.
2. Keep turning the pressure cap slowly and remove it.
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.
Automatic Coolant Service Fill Instruction
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, open the surge tank cap and add coolant to the indicated
mark on the surge tank.
2. Connect the vehicle to a battery charger.
3. Turn the ignition to Service Mode. See Ignition Positions (Key Access) 0184 or
Ignition Positions (Keyless Access) 0186.
4. Turn off the air conditioning.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
254 Vehicle Care
5. Set the parking brake.
6. At the same time, press the acceleratorand 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 Engine
Control Module (ECM) to go to sleep, about
two minutes, and repeat Steps 3-7.
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 an engine coolant
temperature gauge to warn of the engine
overheating. See Engine Coolant
Temperature Gauge 096.
If the decision is made not to lift the hood
when this warning appears, get service help
right away. See Roadside Assistance Program
0 330. If the decision is made to lift the hood,
make sure the vehicle is parked on a level
surface.
Then check to see if the engine cooling fan
is running. If the engine is overheating, the
fan should be running. If it is not, do not
continue to run the engine. Have the vehicle
serviced.
Caution
Do not run the engine if there is a leak
in the engine cooling system. This can
cause a loss of all coolant and can
damage the system and vehicle. Have
any leaks fixed right away.
If Steam Is Coming from the Engine
Compartment
{Warning
Steam and scalding liquids from a hot
cooling system are under pressure.
Turning the pressure cap, even a little,
can cause them to come out at high
speed and you could be burned. Never
turn the cap when the cooling system,
(Continued)
Warning (Continued)
including the pressure cap, is hot. Wait
for the cooling system and pressure cap
to cool.
If No Steam Is Coming from the Engine
Compartment
If an engine overheat warning is displayed
but no steam can be seen or heard, the
problem may not be too serious. Sometimes
the engine can get a little too hot when the
vehicle:
.Climbs a long hill on a hot day
.Stops after high-speed driving
If the overheat warning is displayed with no
sign of steam: 1. Turn the air conditioning off.
2. Turn the heater on to the highest temperature and to the highest fan
speed. Open the windows as necessary.
3. When it is safe to do so, pull off the road, shift to P (Park) or N (Neutral), and
let the engine idle.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
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Vehicle Care 255
If the engine coolant temperature gauge is
no longer in the overheat zone, the vehicle
can be driven. Continue to drive the vehicle
slowly for about 10 minutes. Keep a safe
vehicle distance from the vehicle in front.
If the warning does not come back on,
continue to drive normally and have the
cooling system checked for proper fill and
function.
If the warning continues, pull over, stop, and
park the vehicle right away.
If there is no sign of steam, idle the engine
for three minutes while parked. If the
warning is still displayed, turn off the
engine until it cools down.
Washer Fluid
What to Use
When the vehicle needs windshield washer
fluid, be sure to read the manufacturer's
instructions before use. If operating the
vehicle in an area where the temperature
may fall below freezing, use a fluid that has
sufficient protection against freezing.
Adding Washer Fluid
Open the cap with the washer symbol on it.
Add washer fluid until the tank is full. See
Engine Compartment Overview0242 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, and may also clog the
washer nozzle.
.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.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
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Service and Maintenance 319
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
Fluids and lubricants identified below by name or specification, including fluids or lubricants not listed here, can be obtained from your dealer.Usage Fluid/Lubricant
Automatic Transmission —Continuously
Variable Ratio (CVT) High Performance CVT Fluid. See your dealer.
Automatic Transmission —9 Speed DEXRON VI Automatic Transmission Fluid.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant. See Cooling
System 0250.
Engine Oil Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. See Engine Oil0245.
Hood Latch Assembly, Secondary Latch, Pivots, Spring Anchor, and Release Pawl Lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Hydraulic Brake System DOT 4 Hydraulic Brake Fluid.
Key Lock Cylinders, Hood and Door Hinges Multi-Purpose Lubricant. See your dealer. Rear Axle (All-Wheel Drive) See your dealer.
Transfer Case (All-Wheel Drive) Transfer Case Fluid. See your dealer. Windshield Washer Automotive windshield washer fluid that meets regional freeze protection requirements.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
Index 349
Center ConsoleStorage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Chains, Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
Charging System Light . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Wireless . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Check Engine Light (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Child Restraints Infants and Young Children . . . . . . . . . . . . . 64
Lower Anchors and Tethers forChildren . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Older Children . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Securing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75, 76
Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Child Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . .23
Circuit Breakers . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Cleaning
Exterior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 305
Interior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
Climate Control Systems . . . . . . . . . . . . . . . . . 167
Air Conditioning . . . . . . . . . . . . . . . . . . . . . . . 167
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Cluster, Instrument . . . . . . . . . . . . . . . . . . . . . . . 92
Collision Damage Repair . . . . . . . . . . . . . . . . . 333 Compact Spare Tire . . . . . . . . . . . . . . . . . . . . . . 298
Compartments
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Connected Services Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 344
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 346
Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344
Connections Connected Services . . . . . . . . . . . . . . . . . . . . 344
Control
Traction and Electronic Stability . . . . . . . 200
Control of a Vehicle . . . . . . . . . . . . . . . . . . . . . 176
Controls Steering Wheel . . . . . . . . . . . . . . . . . . . . . . . . . 121
Convex Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Coolant
Engine Temperature Gauge . . . . . . . . . . . . . 96
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .167, 169
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . 250
Courtesy Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Courtesy Transportation Program . . . . . . . . 332
Coverage Explanations . . . . . . . . . . . . . . . . . . . .142
Covers Rear Compartment/Storage Panel . . . . . . . 82
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189 Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Adaptive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Cupholders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
Customer Assistance Offices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329
Text Telephone (TTY) Users . . . . . . . . . . . . 329
Customer Information Publications Ordering Information . . . . . 335
Customer Satisfaction Procedure . . . . . . . . . 327
Cybersecurity . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337
D
Damage Repair, Collision . . . . . . . . . . . . . . . . . 333
Danger, Warning, and Caution . . . . . . . . . . . . . .3
Dashboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Data Collection Infotainment System . . . . . . . . . . . . . . . . . . 338
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338
Data Recorders, Event . . . . . . . . . . . . . . . . . . . 337
Database Coverage Explanations . . . . . . . . . .142
Daytime Running Lamps (DRL) . . . . . . . . . . . . 114
Defensive Driving . . . . . . . . . . . . . . . . . . . . . . . . . 175
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Destination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Diagnostics Connected Services . . . . . . . . . . . . . . . . . . . . 346

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
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350 Index
Disabled VehicleTransporting . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
Distracted Driving . . . . . . . . . . . . . . . . . . . . . . . . . 175
Dome Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . 22
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Power Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Drive Belt Routing, Engine . . . . . . . . . . . . . . . 326
Drive Systems All-Wheel Drive . . . . . . . . . . . . . . . . . . . 197, 258
Driver Assistance Systems . . . . . . . . . . . . . . . . . . . . 214
Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
Information Center (DIC) . . . . . . . . . . 106, 108
Mode Control . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Teen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Driving Assistance Systems . . . . . . . . . . . . . . . . . . . . . 217
Better Fuel Economy . . . . . . . . . . . . . . . . . . . 174
Characteristics and Towing Tips . . . . . . . . 229
Defensive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
Hill and Mountain Roads . . . . . . . . . . . . . . 178
If the Vehicle is Stuck . . . . . . . . . . . . . . . . . 180
Impaired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . . 177 Driving (cont'd)
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . . 177
Vehicle Load Limits . . . . . . . . . . . . . . . . . . . . . 181
Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Driving the Vehicle . . . . . . . . . . . . . . . . . . . . . . . . .3
E
Electric Brake Boost . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Parking Brake Light . . . . . . . . . . . . . . . . . . . . 101
Electrical Equipment, Add-On . . . . . . . . . . . . . . . . . . . . 237
System Overload . . . . . . . . . . . . . . . . . . . . . . 269
Electrical System Engine Compartment Fuse Block . . . . . . . . 271
Fuses and Circuit Breakers . . . . . . . . . . . . . 270
Instrument Panel Fuse Block . . . . . . . . . . . 273
Rear Compartment Fuse Block . . . . . . . . . 275
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . . . . . . 248
Air Filter Life System . . . . . . . . . . . . . . . . . . 248
Check Light (Malfunction Indicator) . . . . . 99
Compartment Overview . . . . . . . . . . . . . . . . 242
Coolant Temperature Gauge . . . . . . . . . . . . 96 Engine (cont'd)
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 250
Drive Belt Routing . . . . . . . . . . . . . . . . . . . . . 326
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Oil Life System . . . . . . . . . . . . . . . . . . . . . . . . 247
Oil Pressure Light . . . . . . . . . . . . . . . . . . . . . . 104
Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
Power Messages . . . . . . . . . . . . . . . . . . . . . . . 110
Running While Parked . . . . . . . . . . . . . . . . . 194
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Equipment, Towing . . . . . . . . . . . . . . . . . . . . . . 235
Event Data Recorders . . . . . . . . . . . . . . . . . . . . 337
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Extended Parking . . . . . . . . . . . . . . . . . . . . . . . . 194
Extender, Seat Belt . . . . . . . . . . . . . . . . . . . . . . . . 51
Exterior
Lamp Controls . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Lighting Battery Saver . . . . . . . . . . . . . . . . . . 118
F
FilterEngine Air Cleaner . . . . . . . . . . . . . . . . . . . . . 248
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Flashers, Hazard Warning . . . . . . . . . . . . . . . . . 115
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
Index 351
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312
FluidAutomatic Transmission . . . . . . . . . . . . . . . 248
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
Fog Lamp Light Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 Bulb Replacement . . . . . . . . . . . . . . . . . . . . . . 264
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Folding Seatback . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Forward Collision Alert (FCA) System . . . . . . . . . . . . 217
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335
Front
Heated Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Pedestrian Braking (FPB) System . . . . . . . 220
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Fuel
Additives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Economy, Driving for Better . . . . . . . . . . . 174
Filling a Portable Fuel Container . . . . . . . 228
Filling the Tank . . . . . . . . . . . . . . . . . . . . . . . . 227
Foreign Countries . . . . . . . . . . . . . . . . . . . . . . 227
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Low Fuel Warning Light . . . . . . . . . . . . . . . 105 Fuel (cont'd)
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . 226
Recommended . . . . . . . . . . . . . . . . . . . . . . . . . 226
Top Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Fuses Engine Compartment Fuse Block . . . . . . . . 271
Fuses and Circuit Breakers . . . . . . . . . . . . . 270
Instrument Panel Fuse Block . . . . . . . . . . . 273
Rear Compartment Fuse Block . . . . . . . . . 275
Where To Find Fuse Maps for YourVehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
G
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
GaugesEngine Coolant Temperature . . . . . . . . . . . . 96
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Warning Lights and Indicators . . . . . . . . . . 92
General Information Service and Maintenance . . . . . . . . . . . . . . 314
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Global Positioning System (GPS) . . . . . . . . . 140
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330
Guidance Problems with the Route . . . . . . . . . . . . . . . 141
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Hazard Warning Flashers . . . . . . . . . . . . . . . . . 115
HD Radio Technology . . . . . . . . . . . . . . . . . . . . . 125
Head Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . . 262
Daytime Running Lamps (DRL) . . . . . . . . . . 114
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Headlamps, Front Turn Signal,
Sidemarker, and Parking
Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . 262, 263
High-Beam On Light . . . . . . . . . . . . . . . . . . . 105
High/Low Beam Changer . . . . . . . . . . . . . . . 113
Lamps On Reminder . . . . . . . . . . . . . . . . . . . 105
Heated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Steering Wheel . . . . . . . . . . . . . . . . . . . . . . . . . 86
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191