oil temperature CHEVROLET BLAZER 2020 User Guide

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
256 Vehicle Care
include engine revolutions, engine
temperature, and miles driven.
Based on driving conditions, the
mileage at which an oil change is
indicated can vary considerably. For
the oil life system to work properly,
the system must be reset every time
the oil is changed.
When the system has calculated
that oil life has been diminished, it
indicates that an oil change is
necessary. A CHANGE ENGINE
OIL SOON message comes on.
Change the oil as soon as possible
within the next 1 000 km (600 mi).
It is possible that, if driving under
the best conditions, the oil life
system might indicate that an oil
change is not necessary for up to a
year. The engine oil and filter must
be changed at least once a year
and, at this time, the system must
be reset. Your dealer has trained
service people who will perform this
work and reset the system. It is also
important to check the oil regularly
over the course of an oil drain
interval and keep it at the proper
level.If the system is ever reset
accidentally, the oil must be
changed at 5 000 km (3,000 mi)
since the last oil change.
Remember to reset the oil life
system whenever the oil is changed.
How to Reset the Engine Oil
Life System
Reset the system whenever the
engine oil is changed so that the
system can calculate the next
engine oil change. To reset the
system:
1. Display the REMAINING OIL LIFE on the DIC. See Driver
Information Center (DIC) (Base
and Midlevel) 0129 or
Driver Information Center (DIC)
(Uplevel) 0133.
2. Press and hold the thumbwheel on the DIC while
the Oil Life display is active.
3. Confirm yes, and the oil life will change to 100%. The oil life system can also be reset
as follows:
1. Place the ignition in Service Mode. See Ignition Positions
0 178.
2. Display REMAINING OIL LIFE on the DIC menu. See Driver
Information Center (DIC) (Base
and Midlevel) 0129 or
Driver Information Center (DIC)
(Uplevel) 0133.
3. Fully press and release the accelerator pedal three times
within five seconds.
4. If the display changes to 100%, the system is reset.
If the CHANGE ENGINE OIL SOON
message comes back on when the
vehicle is started, the engine oil life
system has not been reset. Repeat
the procedure.
Automatic Transmission
Fluid
It is not necessary to check the
transmission fluid level.
A transmission fluid leak is the only

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
Vehicle Care 257
reason for fluid loss. If a leak
occurs, take the vehicle to the
dealer and have it repaired as soon
as possible.
Change the fluid at the intervals
listed inMaintenance Schedule
0 339, and be sure to use the
transmission fluid listed in
Recommended Fluids and
Lubricants 0348.
Caution
Use of the incorrect automatic
transmission fluid may damage
the vehicle, and the damage may
not be covered by the vehicle
warranty. Always use the correct
automatic transmission fluid. See
Recommended Fluids and
Lubricants 0348.
The transmission fluid will not reach
the end of the dipstick unless the
transmission is at operating
temperature. If you need to check
the transmission fluid level, take the
vehicle to your dealer.
Engine Air Filter Life
System
If equipped, this feature provides
the engine air filter ’s remaining life
and best timing for a change. The
timing to change an engine air filter
depends on driving and
environmental conditions.
When to Change the Engine
Air Filter
When the Driver Information Center
(DIC) displays a message to replace
the engine air filter at the next oil
change, follow this timing.
When the DIC displays a message
to replace the engine air filter soon,
replace the engine air filter at the
earliest convenience.
The system must be reset after the
engine air filter is changed.
If the DIC displays a message to
check the engine air filter system,
see your dealer.
How to Reset the Engine Air
Filter Life System
To reset:
1. Place the vehicle in P (Park).
2. Display the Air Filter Life on the DIC. See Driver Information
Center (DIC) (Base and
Midlevel) 0129 or
Driver Information Center (DIC)
(Uplevel) 0133.
3. Press
Tto move to the Reset/
Disable display area. Select
Reset then press the
thumbwheel.
4. Press the thumbwheel to confirm the reset.
Engine Air Cleaner/Filter
The engine air cleaner/filter is in the
engine compartment. See Engine
Compartment Overview 0248.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
Vehicle Care 261
{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 needs to be
checked and replaced at
appropriate intervals. See
Maintenance Schedule0339.
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 0264.
What to Use
{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.
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, or by 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.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
Index 381
Driving (cont'd)Defensive . . . . . . . . . . . . . . . . . . . . . 163
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 163
Hill and Mountain Roads . . . . . . 171
If the Vehicle is Stuck . . . . . . . . . 173
Loss of Control . . . . . . . . . . . . . . . 165
Off-Road . . . . . . . . . . . . . . . . . . . . . 166
Off-Road Recovery . . . . . . . . . . . 165
Vehicle Load Limits . . . . . . . . . . . 174
Wet Roads . . . . . . . . . . . . . . . . . . . 170
Winter . . . . . . . . . . . . . . . . . . . . . . . . 172
Dual Automatic Climate
Control System . . . . . . . . . . . . . . . . 155
E
Electric Brake Boost . . . . . . . . . . . . 191
Electric Parking Brake . . . . . . . . . . 192
Electric Parking Brake Light . . . . 123
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 242
Electrical System Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 276
Fuses and Circuit Breakers . . . 275
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 279
Overload . . . . . . . . . . . . . . . . . . . . . 275 Electrical System (cont'd)
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 282
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . 370
Engine Air Cleaner/Filter . . . . . . . . . . . . . 257
Check Light (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . 120
Compartment Overview . . . . . . . 248
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . .116
Coolant Temperature Warning Light . . . . . . . . . . . . . . . 126
Cooling System . . . . . . . . . . . . . . . 259
Drive Belt Routing . . . . . . . . . . . . 354
Exhaust . . . . . . . . . . . . . . . . . . . . . . 186
Heater . . . . . . . . . . . . . . . . . . . . . . . . 182
Oil Life System . . . . . . . . . . . . . . . 255
Oil Pressure Light . . . . . . . . . . . . 127
Overheating . . . . . . . . . . . . . . . . . . 264
Power Messages . . . . . . . . . . . . . 136
Running While Parked . . . . . . . . 187
Starting . . . . . . . . . . . . . . . . . . . . . . . 180
Engine Air Filter Life System . . . . 257
Engine Oil Temperature Gauge . . . . . . . . . . .116
Entry Lighting . . . . . . . . . . . . . . . . . . . 151 Equipment, Towing . . . . . . . . . . . . . 237
Event Data Recorders . . . . . . . . . . 367
Exit Lighting . . . . . . . . . . . . . . . . . . . . 151
Extended Parking . . . . . . . . . . . . . . . 186
Extender, Seat Belt . . . . . . . . . . . . . . 58
Exterior Lamp Controls . . . . . . . . . 145
Exterior Lamps Off Reminder . . . 147
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . . . 153
F
Filter,Engine Air Cleaner . . . . . . . . . . . 257
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 147
Flashers, Hazard Warning . . . . . . 149
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 306 Changing . . . . . . . . . . . . . . . . . . . . . 314
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 335
Fluid Automatic Transmission . . . . . . 256
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 267
Washer . . . . . . . . . . . . . . . . . . . . . . . 265
Folding Mirrors . . . . . . . . . . . . . . . . . . 30
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . 215
Frequency Statement
Radio . . . . . . . . . . . . . . . . . . . . . . . . . 365

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
382 Index
Front Pedestrian Braking(FPB) System . . . . . . . . . . . . . . . . . 219
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . 42
Heated and Ventilated . . . . . . . . . . 47
Fuel Additives . . . . . . . . . . . . . . . . . . . . . 226
Economy, Driving for Better . . . 162
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 228
Filling the Tank . . . . . . . . . . . . . . . 227
Foreign Countries . . . . . . . . . . . . 226
Gauge . . . . . . . . . . . . . . . . . . . . . . . . .115
Low Fuel Warning Light . . . . . . . 127
Management, Active . . . . . . . . . . 185
Prohibited Fuels . . . . . . . . . . . . . . 226
Recommended . . . . . . . . . . . . . . . 226
Top Tier . . . . . . . . . . . . . . . . . . . . . . 225
Fuses Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 276
Fuses and Circuit Breakers . . . 275
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 279
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 282G
Garage Door Opener . . . . . . . . . . . 141Programming . . . . . . . . . . . . . . . . . 141
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 271
Gauges Engine CoolantTemperature . . . . . . . . . . . . . . . . .116
Engine Oil Temperature . . . . . . . .116
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . .115
Odometer . . . . . . . . . . . . . . . . . . . . . .114
Speedometer . . . . . . . . . . . . . . . . . .114
Tachometer . . . . . . . . . . . . . . . . . . . .114
Trip Odometer . . . . . . . . . . . . . . . . .114
Voltmeter . . . . . . . . . . . . . . . . . . . . . .117
Warning Lights and Indicators . . . . . . . . . . . . . . . . . . . 107
General Information Service and Maintenance . . . . . 337
Towing . . . . . . . . . . . . . . . . . . . . . . . . 229
Vehicle Care . . . . . . . . . . . . . . . . . . 244
Glove Box . . . . . . . . . . . . . . . . . . . . . . . 91
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . 359
H
Hazard Warning Flashers . . . . . . . 149
Head Restraints . . . . . . . . . . . . . . . . . 40 Headlamps
Aiming . . . . . . . . . . . . . . . . . . . . . . . . 273
Automatic . . . . . . . . . . . . . . . . . . . . . 148
Bulb Replacement . . . . . . . . . . . . 273
Daytime Running
Lamps (DRL) . . . . . . . . . . . . . . . . 147
Flash-to-Pass . . . . . . . . . . . . . . . . . 147
High Intensity Discharge
(HID) Lighting . . . . . . . . . . . . . . . 273
High-Beam On Light . . . . . . . . . . 128
High/Low Beam Changer . . . . . 147
Lamps On Reminder . . . . . . . . . 128
Heated Rear Seats . . . . . . . . . . . . . . . . . . . . . 51
Steering Wheel . . . . . . . . . . . . . . . . . 99
Heated and Ventilated Front
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Heated Mirrors . . . . . . . . . . . . . . . . . . . 31
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . 182
Heating . . . . . . . . . . . . . . . . . . . . . . . . . 155
High Voltage Devices and
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . 274
High-Beam On Light . . . . . . . . . . . . 128
High-Speed Operation . . . . . . . . . . 293
Hill and Mountain Roads . . . . . . . . 171
Hill Start Assist (HSA) . . . . . . . . . . 194
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 246

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
Index 383
HooksShopping Bag . . . . . . . . . . . . . . . . . . 93
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
How to Wear Seat Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . 53
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
I
Ignition Positions . . . . . . . . . . . . . . . 178
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 29
Indicator Pedestrian Ahead . . . . . . . . . . . . 125
Vehicle Ahead . . . . . . . . . . . . . . . . 124
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . 73
Information Publication Ordering . . . . . . . . . . 364
Infotainment . . . . . . . . . . . . . . . . . . . . 154
Infotainment System . . . . . . . . . . . . 368
Instrument Cluster . . . . . . . . . 108, 112
Instrument Panel Overview . . . . . . . 5
Interior Rearview Mirrors . . . . . . . . . 31
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . . . 321
K
Keyless Entry
Remote (RKE) System . . . . . . . . . . 8
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
L
Labeling, Tire Sidewall . . . . . . . . . . 286
Lamps Courtesy . . . . . . . . . . . . . . . . . . . . . . 150
Daytime Running (DRL) . . . . . . 147
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 150
Exterior Controls . . . . . . . . . . . . . . 145
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . 147
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . 153
Malfunction Indicator (Check Engine) . . . . . . . . . . . . . 120
On Reminder . . . . . . . . . . . . . . . . . 128
Reading . . . . . . . . . . . . . . . . . . . . . . 150
Lane Change Alert (LCA) . . . . . . . 221
Lane Keep Assist (LKA) . . . . . . . . 223
Lane Keep Assist Light . . . . . . . . . 124
Lap-Shoulder Belt . . . . . . . . . . . . . . . 55
LATCH System Replacing Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . . . 85 LATCH, Lower Anchors and
Tethers for Children . . . . . . . . . . . . 79
LED Lighting . . . . . . . . . . . . . . . . . . . . 273
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . 151
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Illumination Control . . . . . . . . . . . 150
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Lights Airbag Readiness . . . . . . . . . . . . . .119
Antilock Brake System
(ABS) Warning . . . . . . . . . . . . . . 123
Brake System Warning . . . . . . . 122
Charging System . . . . . . . . . . . . . 120
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . 120
Cruise Control . . . . . . . . . . . . . . . . 128
Door Ajar . . . . . . . . . . . . . . . . . . . . . 129
Electric Parking Brake . . . . . . . . 123
Engine Coolant Temperature Warning . . . . . . . 126
Engine Oil Pressure . . . . . . . . . . 127
Flash-to-Pass . . . . . . . . . . . . . . . . . 147
High-Beam On . . . . . . . . . . . . . . . . 128
High/Low Beam Changer . . . . . 147
Lane Keep Assist . . . . . . . . . . . . . 124
Low Fuel Warning . . . . . . . . . . . . 127