2019 CHEVROLET IMPALA coolant temperature

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-12146115) -
2019 - crc - 8/27/18
Vehicle Care 237
can feel the upper radiator
hose getting hot. Watch out for
the engine cooling fans.
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.
Engine Overheating
There is a coolant temperature
gauge on the instrument cluster that
indicates an overheated engine
condition. See Engine Coolant
Temperature Gauge 0119.
If the decision is made not to lift the
hood when this warning appears,
get service help right away. See
Roadside Assistance Program
0 319.
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 fans are running. If the
engine is overheating, the fans should be running. If not, do not
continue to run the engine and 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,
including the pressure cap, is hot.
Wait for the cooling system and
pressure cap to cool.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-12146115) -
2019 - crc - 8/27/18
238 Vehicle Care
SeeOverheated Engine Protection
Operating Mode 0238 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
0 238.
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-12146115) -
2019 - crc - 8/27/18
Vehicle Care 253
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.Fuses Usage
1 Transmission control module battery
2 Engine control module battery / A/C Clutch
3 A/C clutch
4 Engine control module battery
5 Engine control module/Ignition
6 Front wiper
7 Engine control module ignition
8 Ignition coils –even
9 Ignition coils –odd
10 Engine control module 11 Mass air flow sensor/ Intake air
temperature/Humidity/
Temperature intake air Fuses Usage
pressure/Post
catalytic converter O2
sensors
12 Starter/Starter pinion
13 Transmission control module/Chassis
control module/
Ignition
14 Cabin coolant pump
17 Ventilated front seats/ Heated steering wheel
18 Battery disconnect unit
19 Aeroshutter
20 Transmission auxiliary pump
21 Rear power window
22 Sunroof
23 Adaptive cruise control
24 Front power window
25 Retained accessory power Fuses Usage
26 ABS pump
27 Electric parking brake
28 Rear defogger
29 Passive entry/Passive start
30 Canister vent solenoid
31 Heated seat –driver
32 LED Backlight Dimming Control/Left
headlamp low-beam/
Right rear stop/turn
lamp/RAP relay/LED
ambient lighting/
Dome-reading lamps
33 Heated seat –
passenger
34 ABS valve
35 Amplifier
37 Right high-beam headlamp
38 Left high-beam headlamp
41 Vacuum pump

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-12146115) -
2019 - crc - 8/27/18
Index 343
Child Restraints (cont'd)Systems . . . . . . . . . . . . . . . . . . . . . . . . 87
Circuit Breakers . . . . . . . . . . . . . . . . 251
Cleaning Exterior Care . . . . . . . . . . . . . . . . . 289
Interior Care . . . . . . . . . . . . . . . . . . 294
Climate Control Systems . . . . . . . 152 Air Conditioning . . . . . . . . . . . . . . 152
Dual Automatic . . . . . . . . . . . . . . . 155
Heating . . . . . . . . . . . . . . . . . . . . . . . 152
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Cluster, Instrument . . . . . . . . . . . . . 114
Collision Damage Repair . . . . . . . 322
Compact Spare Tire . . . . . . . . . . . . 283
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . 102
Compass . . . . . . . . . . . . . . . . . . . . . . . 109
Connected Services Connections . . . . . . . . . . . . . . . . . . 338
Diagnostics . . . . . . . . . . . . . . . . . . . 340
Navigation . . . . . . . . . . . . . . . . . . . . 337
Connections Connected Services . . . . . . . . . . 338
Control Traction and ElectronicStability . . . . . . . . . . . . . . . . . . . . . 186
Control of a Vehicle . . . . . . . . . . . . . 163
Convenience Net . . . . . . . . . . . . . . . 105 Convex Mirrors . . . . . . . . . . . . . . . . . . 43
Coolant
Engine Temperature Gauge . . .119
Cooling . . . . . . . . . . . . . . . . . . . . 152, 155
Cooling System . . . . . . . . . . . . . . . . . 233
Courtesy Lamps . . . . . . . . . . . . . . . . 147
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . . 321
Cruise Control . . . . . . . . . . . . . . . . . . 188 Light . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Cruise Control, Adaptive . . . . . . . . 190
Cupholders . . . . . . . . . . . . . . . . . . . . . 103
Customer Assistance . . . . . . . . . . . 318
Offices . . . . . . . . . . . . . . . . . . . . . . . . 317
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 318
Customer Information Publications OrderingInformation . . . . . . . . . . . . . . . . . . 324
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . . 315
D
Damage Repair, Collision . . . . . . . 322
Danger, Warning, and Caution . . . . 2
Data Collection
Infotainment System . . . . . . . . . . 328 Data Collection (cont'd)
OnStar . . . . . . . . . . . . . . . . . . . . . . . 328
Data Recorders, Event . . . . . . . . . 327
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 145
Defensive Driving . . . . . . . . . . . . . . . 163
Delayed Locking . . . . . . . . . . . . . . . . . 38
Diagnostics Connected Services . . . . . . . . . . 340
Distracted Driving . . . . . . . . . . . . . . . 162
Dome Lamps . . . . . . . . . . . . . . . . . . . 148
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . 129
Delayed Locking . . . . . . . . . . . . . . . . 38
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Power Locks . . . . . . . . . . . . . . . . . . . . 38
Drive Belt Routing, Engine . . . . . . 314
Driver Assistance Systems . . . . . 197
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . 129
Driving Assistance Systems . . . . . . . . . . 201
Characteristics andTowing Tips . . . . . . . . . . . . . . . . . 212
Defensive . . . . . . . . . . . . . . . . . . . . . 163
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 163
For Better Fuel Economy . . . . . . . 26
Hill and Mountain Roads . . . . . . 166

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-12146115) -
2019 - crc - 8/27/18
344 Index
Driving (cont'd)If the Vehicle is Stuck . . . . . . . . . 168
Loss of Control . . . . . . . . . . . . . . . 165
Off-Road Recovery . . . . . . . . . . . 164
Vehicle Load Limits . . . . . . . . . . . 168
Wet Roads . . . . . . . . . . . . . . . . . . . 165
Winter . . . . . . . . . . . . . . . . . . . . . . . . 167
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . 155
E
E85 or FlexFuel . . . . . . . . . . . . . . . . 209
Electric Parking Brake . . . . . . . . . . 184
Electric Parking Brake Light . . . . 124
Electrical Equipment,
Add-On . . . . . . . . . . . . . . . . . . . . . . . 219
Electrical System Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 251
Fuses and Circuit Breakers . . . 251
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 254
Overload . . . . . . . . . . . . . . . . . . . . . 250
Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . 330
Engine Air Cleaner/Filter . . . . . . . . . . . . . 232 Engine (cont'd)
Check Light (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . 122
Compartment Overview . . . . . . . 225
Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . .119
Cooling System . . . . . . . . . . . . . . . 233
Drive Belt Routing . . . . . . . . . . . . 314
Exhaust . . . . . . . . . . . . . . . . . . . . . . 179
Heater . . . . . . . . . . . . . . . . . . . . . . . . 176
Oil Life System . . . . . . . . . . . . . . . 230
Oil Pressure Light . . . . . . . . . . . . 127
Overheated Protection Operating Mode . . . . . . . . . . . . . 238
Overheating . . . . . . . . . . . . . . . . . . 237
Power Messages . . . . . . . . . . . . . 132
Running While Parked . . . . . . . . 180
Starting . . . . . . . . . . . . . . . . . . . . . . . 174
Entry Lighting . . . . . . . . . . . . . . . . . . . 149
Equipment, Towing . . . . . . . . . . . . . 218
Event Data Recorders . . . . . . . . . . 327
Exit Lighting . . . . . . . . . . . . . . . . . . . . 149
Extended Parking . . . . . . . . . . . . . . . 179
Extender, Seat Belt . . . . . . . . . . . . . . 69
Exterior Lamp Controls . . . . . . . . . 144
Exterior Lamps Off Reminder . . . 145
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . 150
F
Features
Memory . . . . . . . . . . . . . . . . . . . . . . . . . 12
Filter, Engine Air Cleaner . . . . . . . . . . . 232
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 145
Flashers, Hazard Warning . . . . . . 146
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 277 Changing . . . . . . . . . . . . . . . . . . . . . 278
FlexFuel
E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 297
Fluid Automatic Transmission . . . . . . 231
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 240
Washer . . . . . . . . . . . . . . . . . . . . . . . 238
Folding Mirrors . . . . . . . . . . . . . . . . . . 44
Forward Automatic Braking . . . . . 203
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . 201
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 325
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . 54
Heated and Ventilated . . . . . . . . . . 60
Fuel Additives . . . . . . . . . . . . . . . . . . . . . 209
Economy Driving . . . . . . . . . . . . . . . 26

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-12146115) -
2019 - crc - 8/27/18
Index 345
Fuel (cont'd)Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . .211
Filling the Tank . . . . . . . . . . . . . . . 210
Foreign Countries . . . . . . . . . . . . 209
Gauge . . . . . . . . . . . . . . . . . . . . . . . . .118
Low Fuel Warning Light . . . . . . . 127
Prohibited Fuels . . . . . . . . . . . . . . 208
Recommended . . . . . . . . . . . . . . . 208
Top Tier . . . . . . . . . . . . . . . . . . . . . . 208
Fuses Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 251
Fuses and Circuit Breakers . . . 251
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 254
G
Garage Door Opener . . . . . . . . . . . 140Programming . . . . . . . . . . . . . . . . . 140
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 244
Gauges Engine CoolantTemperature . . . . . . . . . . . . . . . . .119
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . .118
Odometer . . . . . . . . . . . . . . . . . . . . . .117
Speedometer . . . . . . . . . . . . . . . . . .117
Tachometer . . . . . . . . . . . . . . . . . . . .117 Gauges (cont'd)
Trip Odometer . . . . . . . . . . . . . . . . .117
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . .113
General Information Service and Maintenance . . . . . 299
Towing . . . . . . . . . . . . . . . . . . . . . . . . 212
Vehicle Care . . . . . . . . . . . . . . . . . . 222
Glove Box . . . . . . . . . . . . . . . . . . . . . . 103
GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . . 319
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . 246
Hazard Warning Flashers . . . . . . . 146
Head Restraints . . . . . . . . . . . . . . . . . 51
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . 246
Automatic . . . . . . . . . . . . . . . . . . . . . 146
Bulb Replacement . . . . . . . . . . . . 246
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . 145
Flash-to-Pass . . . . . . . . . . . . . . . . . 145
Headlamps, Front Turn Signal, Sidemarker, and
Parking Lamps . . . . . . . . . . . . . . 247
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . 246 Headlamps (cont'd)
High-Beam On Light . . . . . . . . . . 128
High/Low Beam Changer . . . . . 145
Lamps On Reminder . . . . . . . . . 128
Heated Steering Wheel . . . . . . . . . . . . . . . 107
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Heated Mirrors . . . . . . . . . . . . . . . . . . . 44
Heater
Engine . . . . . . . . . . . . . . . . . . . . . . . . 176
Heating . . . . . . . . . . . . . . . . . . . . 152, 155
High Voltage Devices and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . 250
High-Beam On Light . . . . . . . . . . . . 128
High-Speed Operation . . . . . . . . . . 266
Hill and Mountain Roads . . . . . . . . 166
Hill Start Assist (HSA) . . . . . . . . . . 185
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
How to Wear Seat Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . 64
HVAC . . . . . . . . . . . . . . . . . . . . . . 152, 155
I
Ignition Positions . . . . . . . . . . . . . . . 172
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 42