open gas tank CHEVROLET BLAZER 2019 Owner's Manual

Chevrolet Blazer (GMNA-Localizing-U.S./Canada/Mexico-12461541) - 2019 -
CRC - 3/11/19
Driving and Operating 241
Caution (Continued)
volume, such as mid-level
ethanol blends (16–50%
ethanol), E85, or FlexFuel.
. Fuel with any amount of
methanol, methylal,
ferrocene, and aniline.
These fuels can corrode
metal fuel system parts or
damage plastic and rubber
parts.
. Fuel containing metals such
as methylcyclopentadienyl
manganese tricarbonyl
(MMT), which can damage
the emissions control
system and spark plugs.
. Fuel with a posted octane
rating of less than the
recommended fuel. Using
this fuel will lower fuel
economy and performance,
and may decrease the life of
the emissions catalyst.
Fuels in Foreign
Countries
The U.S., Canada, and Mexico post
fuel octane ratings in anti-knock
index (AKI). For fuel not to use in a
foreign country, see Prohibited
Fuels 0240.
Fuel Additives
TOP TIER Detergent Gasoline is
highly recommended for use with
your vehicle. If your country does
not have TOP TIER Detergent
Gasoline, add ACDelco Fuel
System Treatment Plus−Gasoline to
the vehicle’ s gasoline fuel tank at
every oil change or 15 000 km
(9,000 mi), whichever occurs first.
TOP TIER Detergent Gasoline and
ACDelco Fuel System Treatment
Plus−Gasoline will help keep your
vehicle’s engine fuel deposit free
and performing optimally.
Filling the Tank
{Warning
Fuel vapors and fuel fires burn
violently and can cause injury or
death.
Follow these guidelines:
. To help avoid injuries to you
and others, read and follow
all the instructions on the
fuel pump island.
. Turn off the engine when
refueling.
. Keep sparks, flames, and
smoking materials away
from fuel.
. Do not leave the fuel pump
unattended.
. Avoid using electronic
devices while refueling.
. Do not reenter the vehicle
while pumping fuel.
(Continued)

Chevrolet Blazer (GMNA-Localizing-U.S./Canada/Mexico-12461541) - 2019 -
CRC - 3/11/19
242 Driving and Operating
Warning (Continued)
.Keep children away from
the fuel pump and never let
children pump fuel.
. Fuel can spray out if the
refueling nozzle is inserted
too quickly. This spray can
happen if the tank is nearly
full, and is more likely in hot
weather. Insert the refueling
nozzle slowly and wait for
any hiss noise to stop prior
to beginning to flow fuel.
To open the fuel door, push and
release the rearward center edge of
the door.
The vehicle has a capless refueling
system and does not have a fuel
cap. The filling nozzle must be fully
inserted and latched prior to starting
fuel flow.
{Warning
Overfilling the fuel tank by more
than three clicks of a standard fill
nozzle may cause:
. Vehicle performance issues,
including engine stalling and
damage to the fuel system.
. Fuel spills.
. Potential fuel fires.
Be careful not to spill fuel. Wait a
few seconds after you have finished
pumping before removing the
nozzle. Clean fuel from painted
surfaces as soon as possible. See
Exterior Care 0338.
{Warning
If a fire starts while you are
refueling, do not remove the
nozzle. Shut off the flow of fuel by
shutting off the pump or by
notifying the station attendant.
Leave the area immediately.
Filling the Tank with a Portable
Gas Can
If the vehicle runs out of fuel and
must be filled from a portable
gas can:
1. Locate the capless funnel adapter from the rear cargo
area under the load floor.
2. Insert and latch the funnel into the capless fuel system.

Chevrolet Blazer (GMNA-Localizing-U.S./Canada/Mexico-12461541) - 2019 -
CRC - 3/11/19
OnStar 381
Press=to:
. Open the OnStar app on the
infotainment display. See the
infotainment manual for
information on how to use the
OnStar app.
Or
. Make a call, end a call,
or answer an incoming call.
. Give OnStar Hands-Free Calling
voice commands.
. Give OnStar Turn-by-Turn
Navigation voice commands.
. Obtain and customize the Wi-Fi
hotspot name or SSID and
password, if equipped.
Press
Qto connect to an
Advisor to:
. Verify account information or
update contact information.
. Get driving directions. .
Receive a Diagnostic check of
the vehicle's key operating
systems.
. Receive Roadside Assistance.
. Manage Wi-Fi Settings,
if equipped.
Press
>to get a priority connection
to an OnStar Advisor available
24/7 to:
. Get help for an emergency.
. Be a Good Samaritan or
respond to an AMBER Alert.
. Get assistance in severe
weather or other crisis situations
and find evacuation routes.
OnStar Services
Emergency
Emergency Services require an
active safety and security plan. With
Automatic Crash Response, built-in
sensors can automatically alert a
specially trained OnStar Advisor
who is immediately connected in to
the vehicle to help.
Press
>for a priority connection to
an OnStar Advisor who can contact
emergency service providers, direct
them to your exact location, and
relay important information.
With OnStar Crisis Assist, specially
trained Advisors are available
24 hours a day, 7 days a week, to
provide a central point of contact,
assistance, and information during a
crisis.
With Roadside Assistance, Advisors
can locate a nearby service provider
to help with a flat tire, a battery
jump, or an empty gas tank.

Chevrolet Blazer (GMNA-Localizing-U.S./Canada/Mexico-12461541) - 2019 -
CRC - 3/11/19
396 Index
Front SeatsAdjustment . . . . . . . . . . . . . . . . . . . . . 61
Heated and Ventilated . . . . . . . . . . 67
Fuel Additives . . . . . . . . . . . . . . . . . . . . . 241
Economy Driving . . . . . . . . . . . . . . . 24
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 243
Filling the Tank . . . . . . . . . . . . . . . 241
Foreign Countries . . . . . . . . . . . . 241
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 131
Low Fuel Warning Light . . . . . . . 142
Management, Active . . . . . . . . . . 199
Prohibited Fuels . . . . . . . . . . . . . . 240
Recommended . . . . . . . . . . . . . . . 240
Top Tier . . . . . . . . . . . . . . . . . . . . . . 240
Fuses Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 287
Fuses and Circuit Breakers . . . 286
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 291
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 293G
Garage Door Opener . . . . . . . . . . . 156Programming . . . . . . . . . . . . . . . . . 156
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 282
Gauges Engine CoolantTemperature . . . . . . . . . . . . . . . . 132
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Odometer . . . . . . . . . . . . . . . . . . . . . 130
Speedometer . . . . . . . . . . . . . . . . . 130
Tachometer . . . . . . . . . . . . . . . . . . . 130
Trip Odometer . . . . . . . . . . . . . . . . 130
Warning Lights and Indicators . . . . . . . . . . . . . . . . . . . 123
General Information Service and Maintenance . . . . . 348
Towing . . . . . . . . . . . . . . . . . . . . . . . . 243
Vehicle Care . . . . . . . . . . . . . . . . . . 258
Glove Box . . . . . . . . . . . . . . . . . . . . . . 109
GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . . 370
H
Hazard Warning Flashers . . . . . . . 164
Head Restraints . . . . . . . . . . . . . . . . . 59
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . 284
Automatic . . . . . . . . . . . . . . . . . . . . . 163 Headlamps (cont'd)
Bulb Replacement . . . . . . . . . . . . 284
Daytime Running
Lamps (DRL) . . . . . . . . . . . . . . . . 163
Flash-to-Pass . . . . . . . . . . . . . . . . . 162
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . 284
High-Beam On Light . . . . . . . . . . 142
High/Low Beam Changer . . . . . 162
Lamps On Reminder . . . . . . . . . 143
Heated Rear Seats . . . . . . . . . . . . . . . . . . . . . 71
Steering Wheel . . . . . . . . . . . . . . . .116
Heated and Ventilated Front
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Heated Mirrors . . . . . . . . . . . . . . . . . . . 50
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . 196
Heating . . . . . . . . . . . . . . . . . . . . . . . . . 170
High Voltage Devices and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . 285
High-Beam On Light . . . . . . . . . . . . 142
High-Speed Operation . . . . . . . . . . 304
Hill and Mountain Roads . . . . . . . . 185
Hill Start Assist (HSA) . . . . . . . . . . 208
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
Hooks Shopping Bag . . . . . . . . . . . . . . . . . 111