2018 CHEVROLET IMPALA heater

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-11348316) -
2018 - CRC - 8/22/17
226 Vehicle Care
2.5L L4 Engine
1. Engine Cooling Fans (Outof View)
2. Coolant Surge Tank and Pressure Cap
3.6L V6 Engine
1. Engine Cooling Fans (Outof View)
2. Coolant Surge Tank and Pressure Cap
{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 5 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 0229.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-11348316) -
2018 - CRC - 8/22/17
230 Vehicle Care
SeeOverheated Engine Protection
Operating Mode 0230 for
information on driving to a safe
place in an emergency.
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 might 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.
. Idles for long periods in traffic.
. Tows a trailer.
If the overheat warning displays 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.
If the 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. Also, see Overheated
Engine Protection Operating Mode
0 230.
Overheated Engine
Protection
Operating Mode
This emergency operating mode
allows the vehicle to be driven to a
safe place in an emergency
situation. If an overheated engine
condition exists, an overheat
protection mode which alternates
firing groups of cylinders helps
prevent engine damage. In this
mode, there is significant loss in
power and engine performance.
The engine coolant temperature
gauge indicates if an overheat
condition exists. Driving extended
distances and/or towing a trailer in
the overheat protection mode
should be avoided.
Washer Fluid
What to Use
When windshield washer fluid is
needed, be sure to read the
manufacturer's instructions before
use. If operating the vehicle in an
area where the temperature may fall

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-11348316) -
2018 - CRC - 8/22/17
336 Index
Dual Automatic ClimateControl System . . . . . . . . . . . . . . . . 150
E
E85 or FlexFuel . . . . . . . . . . . . . . . . 203
Electric Parking Brake . . . . . . . . . . 178
Electric Parking Brake Light . . . . 120
Electrical Equipment,
Add-On . . . . . . . . . . . . . . . . . . . . . . . 211
Electrical System Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 243
Fuses and Circuit Breakers . . . 243
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 246
Overload . . . . . . . . . . . . . . . . . . . . . 242
Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . 322
Engine Air Cleaner/Filter . . . . . . . . . . . . . 224
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . .118
Compartment Overview . . . . . . . 217
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . .115
Cooling System . . . . . . . . . . . . . . . 225
Drive Belt Routing . . . . . . . . . . . . 306
Exhaust . . . . . . . . . . . . . . . . . . . . . . 174 Engine (cont'd)
Heater . . . . . . . . . . . . . . . . . . . . . . . . 171
Oil Life System . . . . . . . . . . . . . . . 222
Oil Pressure Light . . . . . . . . . . . . 123
Overheated Protection
Operating Mode . . . . . . . . . . . . . 230
Overheating . . . . . . . . . . . . . . . . . . 229
Power Messages . . . . . . . . . . . . . 128
Running While Parked . . . . . . . . 174
Starting . . . . . . . . . . . . . . . . . . . . . . . 169
Entry Lighting . . . . . . . . . . . . . . . . . . . 144
Equipment, Towing . . . . . . . . . . . . . 210
Event Data Recorders . . . . . . . . . . 319
Exit Lighting . . . . . . . . . . . . . . . . . . . . 144
Extended Parking . . . . . . . . . . . . . . . 174
Extender, Seat Belt . . . . . . . . . . . . . . 67
Exterior Lamp Controls . . . . . . . . . 139
Exterior Lamps Off Reminder . . . 140
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . 145
F
FeaturesMemory . . . . . . . . . . . . . . . . . . . . . . . . . 12
Filter, Engine Air Cleaner . . . . . . . . . . . 224
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 140
Flashers, Hazard Warning . . . . . . 141 Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 269
Changing . . . . . . . . . . . . . . . . . . . . . 270
FlexFuel E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 289
Fluid Automatic Transmission . . . . . . 223
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 232
Washer . . . . . . . . . . . . . . . . . . . . . . . 230
Folding Mirrors . . . . . . . . . . . . . . . . . . 44
Forward Automatic Braking . . . . . 197
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . 195
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 317
Front Seats
Adjustment . . . . . . . . . . . . . . . . . . . . . 53
Heated and Ventilated . . . . . . . . . . 59
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202 Additives . . . . . . . . . . . . . . . . . . . . . 203
Economy Driving . . . . . . . . . . . . . . . 26
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 206
Filling the Tank . . . . . . . . . . . . . . . 204
Foreign Countries . . . . . . . . . . . . 203
Gauge . . . . . . . . . . . . . . . . . . . . . . . . .114
Low Fuel Warning Light . . . . . . . 123
Requirements, California . . . . . 202

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-11348316) -
2018 - CRC - 8/22/17
Index 337
FusesEngine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 243
Fuses and Circuit Breakers . . . 243
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 246
G
Garage Door Opener . . . . . . . . . . . 135Programming . . . . . . . . . . . . . . . . . 135
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 236
Gauges Engine CoolantTemperature . . . . . . . . . . . . . . . . .115
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . .114
Odometer . . . . . . . . . . . . . . . . . . . . . .113
Speedometer . . . . . . . . . . . . . . . . . .113
Tachometer . . . . . . . . . . . . . . . . . . . .113
Trip Odometer . . . . . . . . . . . . . . . . .113
Warning Lights and Indicators . . . . . . . . . . . . . . . . . . . 109
General Information Service and Maintenance . . . . . 291
Towing . . . . . . . . . . . . . . . . . . . . . . . . 206
Vehicle Care . . . . . . . . . . . . . . . . . . 214
Glove Box . . . . . . . . . . . . . . . . . . . . . . 100
GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . . 311
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . 238
Hazard Warning Flashers . . . . . . . 141
Head Restraints . . . . . . . . . . . . . . . . . 50
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . 237
Automatic . . . . . . . . . . . . . . . . . . . . . 141
Bulb Replacement . . . . . . . . . . . . 238
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . 140
Flash-to-Pass . . . . . . . . . . . . . . . . . 140
Headlamps, Front Turn Signal, Sidemarker, and
Parking Lamps . . . . . . . . . . . . . . 238
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . 238
High-Beam On Light . . . . . . . . . . 124
High/Low Beam Changer . . . . . 140
Lamps On Reminder . . . . . . . . . 124
Heated Steering Wheel . . . . . . . . . . . . . . . 104
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Heated Mirrors . . . . . . . . . . . . . . . . . . . 44
Heater
Engine . . . . . . . . . . . . . . . . . . . . . . . . 171
Heating . . . . . . . . . . . . . . . . . . . . 147, 150 High Voltage Devices and
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . 242
High-Beam On Light . . . . . . . . . . . . 124
High-Speed Operation . . . . . . . . . . 258
Hill and Mountain Roads . . . . . . . . 161
Hill Start Assist (HSA) . . . . . . . . . . 180
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
How to Wear Seat Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . 63
HVAC . . . . . . . . . . . . . . . . . . . . . . 147, 150
I
Ignition Positions . . . . . . . . . . . . . . . 167
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 42
Indicator Vehicle Ahead . . . . . . . . . . . . . . . . 121
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . 82
Infotainment . . . . . . . . . . . . . . . . . . . . 146
Infotainment System . . . . . . . . . . . . 320
Instrument Cluster . . . . . . . . . . . . . . 110
Instrument Panel Storage Area . . . . . . . . . . . . . . . . . . . 99
Interior Rearview Mirrors . . . . . . . . . 45
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2