Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15165663) - 2022 - CRC - 4/27/21
Driving and Operating 245
Do not use any fuel labeled E85 or FlexFuel.
Do not use gasoline with ethanol levels
greater than 15% by volume.
Prohibited Fuels
Caution
Do not use fuels with any of the
following conditions; doing so may
damage the vehicle and void its
warranty:
.For vehicles that are not FlexFuel, fuel
labeled greater than 15% ethanol by
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.
(Continued)
Caution (Continued)
.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 Fuels0245.
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
An arrow on the fuel gauge indicates which
side of the vehicle the fuel door is on. See
Fuel Gauge 098.
{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 re-enter the vehicle while
pumping fuel.
.Keep children away from the fuel
pump and never let children
pump fuel.
(Continued)
Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15165663) - 2022 - CRC - 4/27/21
378 Index
FuelAdditives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
Economy, Driving for Better . . . . . . . . . . . 192
Filling a Portable Fuel Container . . . . . . . 247
Filling the Tank . . . . . . . . . . . . . . . . . . . . . . . . 245
Foreign Countries . . . . . . . . . . . . . . . . . . . . . . 245
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Low Fuel Warning Light . . . . . . . . . . . . . . . 109
Management, Active . . . . . . . . . . . . . . . . . . . 210
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . 245
Recommended . . . . . . . . . . . . . . . . . . . . . . . . . 244
Top Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
Fuses Engine Compartment Fuse Block . . . . . . . 285
Fuses and Circuit Breakers . . . . . . . . . . . . . 284
Instrument Panel Fuse Block . . . . . . . . . . . 288
Rear Compartment Fuse Block . . . . . . . . . 290
G
Garage Door Opener . . . . . . . . . . . . . . . . . . . . . . 121Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
Gauges Engine Coolant Temperature . . . . . . . . . . . . 99
Engine Oil Temperature . . . . . . . . . . . . . . . . . 99
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Gauges (cont'd)
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Voltmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Warning Lights and Indicators . . . . . . . . . . 92
General Information Service and Maintenance . . . . . . . . . . . . . . 338
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
Global Positioning System (GPS) . . . . . . . . . . 153
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 358
Guidance Problems with the Route . . . . . . . . . . . . . . 154
H
Hazard Warning Flashers . . . . . . . . . . . . . . . . . 127
HD Radio Technology . . . . . . . . . . . . . . . . . . . . .138
Head Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . . 281
Daytime Running Lamps (DRL) . . . . . . . . . 126
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
High Intensity Discharge (HID)
Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281 Headlamps (cont'd)
High-Beam On Light . . . . . . . . . . . . . . . . . . . 110
High/Low Beam Changer . . . . . . . . . . . . . . 125
Lamps On Reminder . . . . . . . . . . . . . . . . . . . 110
Heated Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Steering Wheel . . . . . . . . . . . . . . . . . . . . . . . . . 86
Heated and Ventilated Front Seats . . . . . . . .41
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
High Voltage Devices and Wiring . . . . . . . . 282
High-Beam On Light . . . . . . . . . . . . . . . . . . . . . .110
High-Speed Operation . . . . . . . . . . . . . . . . . . . 300
Hill and Mountain Roads . . . . . . . . . . . . . . . . 199
Hill Start Assist (HSA) . . . . . . . . . . . . . . . . . . . . . 217
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
Hooks
Shopping Bag . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
How to Wear Seat Belts Properly . . . . . . . . . 46
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
I
If the System Needs Service . . . . . . . . . . . . . .154
Ignition Positions . . . . . . . . . . . . . . . . . . . . . . . . 205
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24