2019 CHEVROLET IMPALA ignition

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-12146115) -
2019 - crc - 8/27/18
Lighting 149
Lighting Features
Entry Lighting
Some exterior lamps and most of
the interior lamps turn on briefly at
night or in areas with limited lighting
when the Remote Keyless Entry
(RKE) transmitter
Kbutton is
pressed. See Remote Keyless Entry
(RKE) System Operation 028. After
about 30 seconds the exterior lamps
turn off, then the dome lamps and
remaining interior lamps dim to off.
Entry lighting can be disabled
manually by turning the ignition on
or to ACC/ACCESSORY, or by
pressing
Qon the RKE transmitter.
This feature can be changed. See
Vehicle Personalization 0132.
Exit Lighting
Some exterior lamps and interior
lights come on at night, or in areas
with limited lighting, when the driver
door is opened after the ignition is
turned off. The dome lamp comes
on after the ignition is turned off. The exterior lamps and dome lamp
remain on for a set amount of time,
then automatically turn off.
The exterior lamps turn off
immediately by turning the exterior
lamp control off.
This feature can be changed. See
Vehicle Personalization
0132.
Battery Load
Management
The vehicle has Electric Power
Management (EPM) that estimates
the battery's temperature and state
of charge. It then adjusts the voltage
for best performance and extended
life of the battery.
When the battery's state of charge
is low, the voltage is raised slightly
to quickly bring the charge back up.
When the state of charge is high,
the voltage is lowered slightly to
prevent overcharging. If the vehicle
has a voltmeter gauge or a voltage
display on the Driver Information
Center (DIC), you may see the voltage move up or down. This is
normal. If there is a problem, an
alert will be displayed.
The battery can be discharged at
idle if the electrical loads are very
high. This is true for all vehicles.
This is because the generator
(alternator) may not be spinning fast
enough at idle to produce all of the
power needed for very high
electrical loads.
A high electrical load occurs when
several of the following are on, such
as: headlamps, high beams, rear
window defogger, climate control fan
at high speed, heated seats, engine
cooling fans, trailer loads, and loads
plugged into accessory power
outlets.
EPM works to prevent excessive
discharge of the battery. It does this
by balancing the generator's output
and the vehicle's electrical needs.
It can increase engine idle speed to
generate more power whenever
needed. It can temporarily reduce
the power demands of some
accessories.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-12146115) -
2019 - crc - 8/27/18
150 Lighting
Normally, these actions occur in
steps or levels, without being
noticeable. In rare cases at the
highest levels of corrective action,
this action may be noticeable to the
driver. If so, a DIC message might
be displayed and it is recommended
that the driver reduce the electrical
loads as much as possible.
Battery Power Protection
The battery saver feature is
designed to protect the vehicle's
battery.
If some interior lamps are left on
and the ignition is turned off, the
battery rundown protection system
automatically turns the lamp off after
some time.
Exterior Lighting Battery
Saver
The exterior lamps turn off about
10 minutes after the ignition is
turned off, if the parking lamps or
headlamps have been manually left
on. This protects against draining
the battery. To restart the 10-minutetimer, turn the exterior lamp control
to the
Oposition and then back to
the
;or2position.
To keep the lamps on for more than
10 minutes, the ignition must be on
or in ACC/ACCESSORY.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-12146115) -
2019 - crc - 8/27/18
Driving and Operating 161
Driving and
Operating
Driving Information
Distracted Driving . . . . . . . . . . . . 162
Defensive Driving . . . . . . . . . . . . . 163
Drunk Driving . . . . . . . . . . . . . . . . . 163
Control of a Vehicle . . . . . . . . . . . 163
Braking . . . . . . . . . . . . . . . . . . . . . . . 163
Steering . . . . . . . . . . . . . . . . . . . . . . 164
Off-Road Recovery . . . . . . . . . . . 164
Loss of Control . . . . . . . . . . . . . . . 165
Driving on Wet Roads . . . . . . . . 165
Hill and Mountain Roads . . . . . 166
Winter Driving . . . . . . . . . . . . . . . . 167
If the Vehicle Is Stuck . . . . . . . . 168
Vehicle Load Limits . . . . . . . . . . . 168
Starting and Operating
New Vehicle Break-In . . . . . . . . . 172
Ignition Positions . . . . . . . . . . . . . 172
Starting the Engine . . . . . . . . . . . 174
Stop/Start System . . . . . . . . . . . . 175
Engine Heater . . . . . . . . . . . . . . . . 176
Retained AccessoryPower (RAP) . . . . . . . . . . . . . . . . 177
Shifting Into Park . . . . . . . . . . . . . 177
Shifting out of Park . . . . . . . . . . . 178 Parking over Things
That Burn . . . . . . . . . . . . . . . . . . . 179
Extended Parking . . . . . . . . . . . . 179
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . 179
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . 180
Automatic Transmission
Automatic Transmission . . . . . . 180
Manual Mode . . . . . . . . . . . . . . . . . 182
Brakes
Antilock BrakeSystem (ABS) . . . . . . . . . . . . . . . 183
Electric Parking Brake . . . . . . . . 184
Brake Assist . . . . . . . . . . . . . . . . . . 185
Hill Start Assist (HSA) . . . . . . . . 185
Ride Control Systems
Traction Control/Electronic Stability Control . . . . . . . . . . . . . 186
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . 188
Adaptive Cruise Control . . . . . . 190
Driver Assistance Systems
Driver Assistance Systems . . . 197
Assistance Systems forParking or Backing . . . . . . . . . . 198 Assistance Systems for
Driving . . . . . . . . . . . . . . . . . . . . . . 201
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . 201
Forward Automatic
Braking (FAB) . . . . . . . . . . . . . . . 203
Side Blind Zone Alert (SBZA) . . . . . . . . . . . . . . . . 204
Lane Change Alert (LCA) . . . . . 204
Lane Departure Warning (LDW) . . . . . . . . . . . . . 206
Fuel
Top Tier Fuel . . . . . . . . . . . . . . . . . 208
Recommended Fuel . . . . . . . . . . 208
Prohibited Fuels . . . . . . . . . . . . . . 208
Fuels in Foreign Countries . . . 209
Fuel Additives . . . . . . . . . . . . . . . . 209
E85 or FlexFuel . . . . . . . . . . . . . . 209
Filling the Tank . . . . . . . . . . . . . . . 210
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . . 211
Trailer Towing
General TowingInformation . . . . . . . . . . . . . . . . . . 212
Driving Characteristics and Towing Tips . . . . . . . . . . . . . . . . . 212
Trailer Towing . . . . . . . . . . . . . . . . 216
Towing Equipment . . . . . . . . . . . . 218

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-12146115) -
2019 - crc - 8/27/18
166 Driving and Operating
Warning (Continued)
Flowing or rushing water creates
strong forces. Driving through
flowing water could cause the
vehicle to be carried away. If this
happens, you and other vehicle
occupants could drown. Do not
ignore police warnings and be
very cautious about trying to drive
through flowing water.
Hydroplaning
Hydroplaning is dangerous. Water
can build up under the vehicle's
tires so they actually ride on the
water. This can happen if the road is
wet enough and you are going fast
enough. When the vehicle is
hydroplaning, it has little or no
contact with the road.
There is no hard and fast rule about
hydroplaning. The best advice is to
slow down when the road is wet.
Other Rainy Weather Tips
Besides slowing down, other wet
weather driving tips include:
.Allow extra following distance.
. Pass with caution.
. Keep windshield wiping
equipment in good shape.
. Keep the windshield washer fluid
reservoir filled.
. Have good tires with proper
tread depth. See Tires0256.
. Turn off cruise control.
Hill and Mountain Roads
Driving on steep hills or through
mountains is different than driving
on flat or rolling terrain. Tips include:
.Keep the vehicle serviced and in
good shape.
. Check all fluid levels and brakes,
tires, cooling system, and
transmission.
. Shift to a lower gear when going
down steep or long hills.
{Warning
Using the brakes to slow the
vehicle on a long downhill slope
can cause brake overheating, can
reduce brake performance, and
could result in a loss of braking.
Shift the transmission to a lower
gear to let the engine assist the
brakes on a steep downhill slope.
{Warning
Coasting downhill in N (Neutral)
or with the ignition off is
dangerous. This can cause
overheating of the brakes and
loss of steering assist. Always
have the engine running and the
vehicle in gear.
. Drive at speeds that keep the
vehicle in its own lane. Do not
swing wide or cross the
center line.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-12146115) -
2019 - crc - 8/27/18
172 Driving and Operating
Warning (Continued)
. Do not leave an
unsecured child restraint
in the vehicle.
.Secure loose items in the
vehicle.
.Do not leave a seat
folded down unless
needed.
Starting and
Operating
New Vehicle Break-In
Caution
The vehicle does not need an
elaborate break-in. But it will
perform better in the long run if
you follow these guidelines:
. Do not drive at any one
constant speed, fast or slow,
for the first 800 km (500 mi).
Do not make full-throttle
starts. Avoid downshifting to
brake or slow the vehicle.
. Avoid making hard stops for
the first 300 km (200 mi) or
so. During this time the new
brake linings are not yet
broken in. Hard stops with
new linings can mean
premature wear and earlier
replacement. Follow this
(Continued)
Caution (Continued)
breaking-in guideline every
time you get new brake
linings.
Following break-in, engine speed
and load can be gradually
increased.
Ignition Positions
The vehicle has an electronic
keyless ignition with pushbutton
start.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-12146115) -
2019 - crc - 8/27/18
Driving and Operating 173
The Remote Keyless Entry (RKE)
transmitter must be in the vehicle for
the system to operate. If the
pushbutton start is not working, the
vehicle may be near a strong radio
antenna signal causing interference
to the Keyless Access system. See
Remote Keyless Entry (RKE)
System Operation028.
To shift out of P (Park), the vehicle
must be on, in ACC/ACCESSORY,
or in service mode and the brake
pedal must be applied.
Stopping the Engine/LOCK/
OFF (No Indicator Lights) : When
the vehicle is stopped, press
ENGINE START/STOP once to turn
the engine off.
If the vehicle is in P (Park), the
ignition will turn off, and Retained
Accessory Power (RAP) will remain
active. See Retained Accessory
Power (RAP) 0177.
If the vehicle is not in P (Park), the
ignition will return to ACC/
ACCESSORY and display the
message SHIFT TO PARK in the
Driver Information Center (DIC). When the vehicle is shifted into
P (Park), the ignition system will
turn off.
Do not turn the engine off when the
vehicle is moving. This will cause a
loss of power assist in the brake
and steering systems and disable
the airbags.
If the vehicle must be shut off in an
emergency:
1. Brake using a firm and steady pressure. Do not pump the
brakes repeatedly. This may
deplete power assist, requiring
increased brake pedal force.
2. Shift the vehicle to N (Neutral). This can be done while the
vehicle is moving. After shifting
to N (Neutral), firmly apply the
brakes and steer the vehicle to
a safe location.
3. Come to a complete stop, shift to P (Park), and turn the
ignition off. The shift lever must
be in P (Park) to turn the
ignition off. 4. Set the parking brake. See
Electric Parking Brake 0184.
{Warning
Turning off the vehicle while
moving may cause loss of power
assist in the brake and steering
systems and disable the airbags.
While driving, only shut the
vehicle off in an emergency.
If the vehicle cannot be pulled over,
and must be shut off while driving,
press and hold ENGINE START/
STOP for longer than two seconds,
or press twice in five seconds.
ACC/ACCESSORY (Amber
Indicator Light) : This mode allows
some electrical accessories to be
used when the engine is off.
With the ignition off, pressing the
button one time without the brake
pedal applied will place the ignition
system in ACC/ACCESSORY.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-12146115) -
2019 - crc - 8/27/18
174 Driving and Operating
The ignition will switch from ACC/
ACCESSORY to off after
five minutes to prevent battery
rundown.
ON/RUN/START (Green Indicator
Light) :This mode is for driving and
starting. With the ignition off and the
brake pedal applied, pressing the
button once will place the ignition
system in ON/RUN/START. Once
engine cranking begins, release the
button. Engine cranking will
continue until the engine starts. See
Starting the Engine 0174. The
ignition will then remain in ON/RUN.
Service Mode
This power mode is available for
service and diagnostics, and to
verify the proper operation of the
malfunction indicator lamp as may
be required for emission inspection
purposes. With the vehicle off and
the brake pedal not applied,
pressing and holding ENGINE
START/STOP for more than
five seconds will place the vehicle in
Service Mode. The instruments and
audio systems will operate as they
do in ON/RUN, but the vehicle will not be able to be driven. The engine
will not start in Service Mode. Press
ENGINE START/STOP again to turn
the vehicle off.
Starting the Engine
Move the shift lever to P (Park) or
N (Neutral). To restart the engine
when the vehicle is already moving,
use N (Neutral) only.
Caution
Do not try to shift to P (Park) if the
vehicle is moving. If you do, you
could damage the transmission.
Shift to P (Park) only when the
vehicle is stopped.
Caution
If you add electrical parts or
accessories, you could change
the way the engine operates. Any
resulting damage would not be
(Continued)
Caution (Continued)
covered by the vehicle warranty.
SeeAdd-On Electrical Equipment
0 219.
Starting Procedure 1. The Remote Keyless Entry (RKE) transmitter must
be in the vehicle. Press
ENGINE START/STOP with the
brake pedal applied. The
engine will continue cranking
until it starts.
The idle speed will go down as
the engine gets warm. Do not
race the engine immediately
after starting it.
If the RKE transmitter is not in
the vehicle, if there is
interference, or if the RKE
battery is low, a Driver
Information Center (DIC)
message will display. See
Driver Information Center (DIC)
0129.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-12146115) -
2019 - crc - 8/27/18
Driving and Operating 175
Caution
Cranking the engine for long
periods of time, by returning the
ignition to the START position
immediately after cranking has
ended, can overheat and damage
the cranking motor, and drain the
battery. Wait at least 15 seconds
between each try, to let the
cranking motor cool down.
2. If the engine does not start after five to 10 seconds,
especially in very cold weather
(below −18 °C or 0 °F), it could
be flooded with too much
gasoline. Try pushing the
accelerator pedal all the way to
the floor and holding it there as
you press ENGINE START/
STOP, for up to a maximum of
15 seconds. Wait at least
15 seconds between each try,
to allow the cranking motor to
cool down. When the engine
starts, let go of the button and
the accelerator. If the vehicle starts briefly but then stops
again, do the same thing. This
clears the extra gasoline from
the engine. Do not race the
engine immediately after
starting it. Operate the engine
and transmission gently until
the oil warms up and lubricates
all moving parts.
Stop/Start System
If equipped, the Stop/Start system
will shut off the engine to help
conserve fuel. It has components
designed for the increased number
of starts.
{Warning
The automatic engine Stop/Start
feature causes the engine to shut
off while the vehicle is still on. Do
not exit the vehicle before shifting
to P (Park). The vehicle may
restart and move unexpectedly.
Always shift to P (Park), and then
turn the ignition off before exiting
the vehicle.
Auto Engine Stop/Start
When the brakes are applied and
the vehicle is at a complete stop,
the engine may turn off. When
stopped, the tachometer displays
AUTO STOP. See
Tachometer
0 117. When the brake pedal is
released or the accelerator pedal is
pressed, the engine will restart.
To maintain vehicle performance,
other conditions may cause the
engine to automatically restart
before the brake pedal is released.
Auto Stops may not occur and/or
auto restarts may occur because:
. The climate control settings
require the engine to be running
to cool or heat the vehicle
interior.
. The vehicle battery charge
is low.
. The vehicle battery has recently
been disconnected.
. Minimum vehicle speed has not
been reached since the last
Auto Stop