engine start stop CHEVROLET COLORADO 2023 User Guide

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15274222) - 2022 - CRC - 11/2/21
184 Driving and Operating
Caution (Continued)
.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 breaking-in
guideline every time you get new
brake linings.
.Do not tow a trailer during break-in.
SeeTrailer Towing 0223 for the trailer
towing capabilities of the vehicle and
more information.
Following break-in, engine speed and load
can be gradually increased.
On new vehicles, the various mechanical and
electrical systems experience a “break-in”
period during the first 6,400 km
(4,000 miles) of routine driving. As the
vehicle is driven, the mechanical systems
adjust to provide optimal fuel economy and
transmission shift performance. Electrical systems will adapt and calibrate
during the break-in period. A one-time
occurrence of clicks and similar vehicle
noises is normal during this process.
Normal driving charges the vehicle’s battery
to achieve the best operation of the vehicle,
including fuel economy.
Ignition Positions
0. Stopping the Engine/LOCK/OFF
1. ACC/ACCESSORY
2. ON/RUN
3. START
The ignition switch has four positions.
To shift out of P (Park), the ignition must be
ON/RUN and the brake pedal must be
applied.
0 (Stopping the Engine/LOCK/OFF) :
This
position turns off the vehicle. It also locks
the ignition, the transmission, and the
steering column, if equipped with a locking
steering column.To turn off the vehicle:
1. Make sure that the vehicle is stopped.
2. Shift to P (Park).
3. Continue to hold the brake pedal, then set the parking brake. See Parking Brake
0 201.

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Driving and Operating 185
4. Push the key all the way in toward thesteering column, then turn the key to
LOCK/OFF.
5. Remove the key.
6. Release the brake pedal.
See your dealer if the key can be removed
in any other position.
Retained Accessory Power (RAP) will remain
active. See Retained Accessory Power (RAP)
0 188.
A warning chime will sound when the driver
door is opened and the key is in the
ignition.
If equipped with a locking steering column,
the steering can bind with the front wheels
turned off center, which may prevent key
rotation out of LOCK/OFF. If this happens,
move the steering wheel from right to left
while turning the key to ACC/ACCESSORY.
If this does not work, then the vehicle needs
service.{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, turn off the
vehicle only in an emergency.
In an emergency, if the vehicle cannot be
pulled over and must be turned off while
driving: 1. Push the key all the way in toward the steering column, then turn the key to
ACC/ACCESSORY.
2. Brake using firm and steady pressure. Do not pump the brakes repeatedly. This
may deplete power assist, requiring
increased brake pedal force.
3. Shift the vehicle to N (Neutral). This can be done while the vehicle is moving.
Continue braking and steer the vehicle to
a safe location.
4. Come to a complete stop.
5. Shift to P (Park).
6. Push the key all the way in toward the steering column (1), then turn the
ignition to LOCK/OFF (2). 7. Set the parking brake. See
Parking Brake
0 201.
8. Remove the key.
9. Release the brake pedal.
Caution
Use the correct key, make sure it is all
the way in —or pushed all the way in
toward the steering column when turning
off the vehicle —and turn it only with
your hand.
1 (ACC/ACCESSORY) : This position allows
features such as the infotainment system to
operate while the vehicle is off. It also
unlocks the steering column, if equipped
with a locking steering column. Use this
position if the vehicle must be pushed or
towed. See Retained Accessory Power (RAP)
0 188.
From ON/RUN, push the key all the way in
toward the steering column, then turn the
key to ACC/ACCESSORY.
If the key is left in ACC/ACCESSORY with the
engine off, the battery could drain and the
vehicle may not start.

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15274222) - 2022 - CRC - 11/2/21
186 Driving and Operating
A warning chime will sound when the driver
door is opened and the key is in the
ignition.
2 (ON/RUN) :This position can be used to
operate the electrical accessories and to
display some instrument cluster warning
and indicator lights. This position can also
be used for service and diagnostics, and to
verify the proper operation of the
malfunction indicator lamp as may be
required for emission inspection purposes.
The switch stays in this position when the
engine is running. The transmission is also
unlocked in this position.
If the key is left in ON/RUN with the engine
off, the battery could drain and the vehicle
may not start.
3 (START) : This is the position that starts
the engine. When the engine starts, release
the key. The ignition returns to ON/RUN for
driving.
Starting the Engine
If the vehicle has a diesel engine, see the
Duramax diesel supplement.
Caution
If you add electrical parts or accessories,
you could change the way the engine
operates. Any resulting damage would
not be covered by the vehicle warranty.
See Add-On Electrical Equipment 0234.
Place the transmission in the proper gear.
Move the shift lever to P (Park) or
N (Neutral). The engine will not start in any
other position. 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.
Starting Procedure
1. With your foot off the accelerator pedal, turn the ignition key to START. When
the engine starts, let go of the key. The
idle speed will go down as the engine
gets warm. Do not race the engine
immediately after starting it. Operate the engine and transmission gently to
allow the oil to warm up and lubricate
all moving parts.
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 while
holding the key in START for up to
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 key and accelerator
pedal. 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

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Driving and Operating 191
P :This position locks the drive wheels. Use
P (Park) when starting the engine because
the vehicle cannot move easily. When
parked on a hill, especially when the vehicle
has a heavy load, you might notice an
increase in the effort to shift out of P (Park).
See “Torque Lock” underShifting Into Park
0 188.
{Warning
It is dangerous to get out of the vehicle
if the shift lever is not fully in P (Park)
with the parking brake firmly set. The
vehicle can roll.
(Continued)
Warning (Continued)
Do not leave the vehicle when the engine
is running. If you have left the engine
running, the vehicle can move suddenly.
You or others could be injured. To be
sure the vehicle will not move, even
when you are on fairly level ground,
always set the parking brake and move
the shift lever to P (Park). SeeShifting
Into Park 0188 and
Driving Characteristics and Towing Tips
0 219.
{Warning
If you have four-wheel drive, the vehicle
will be free to roll —even if the shift
lever is in P (Park) —if the transfer case
is in N (Neutral). So, be sure the transfer
case is in a drive gear, Two-Wheel Drive
High or Four-Wheel Drive High or
Four-Wheel Drive Low —not in
N (Neutral). See Shifting Into Park 0188.
R : Use this gear to back up.
Caution
Shifting to R (Reverse) while the vehicle is
moving forward could damage the
transmission. The repairs would not be
covered by the vehicle warranty. Shift to
R (Reverse) only after the vehicle is
stopped.
To rock the vehicle back and forth to get
out of snow, ice, or sand without damaging
the transmission, see If the Vehicle Is Stuck
0 177.
N : In this position, the engine does not
connect with the wheels. To restart the
engine when the vehicle is already moving,
use N (Neutral) only.
{Warning
Shifting into a drive gear while the
engine is running at high speed is
dangerous. Unless your foot is firmly on
the brake pedal, the vehicle could move
very rapidly. You could lose control and
hit people or objects. Do not shift into a
drive gear while the engine is running at
high speed.

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Driving and Operating 193
Caution
Spinning the tires or holding the vehicle
in one place on a hill using only the
accelerator pedal may damage the
transmission. The repair will not be
covered by the vehicle warranty. If the
vehicle is stuck, do not spin the tires.
When stopping on a hill, use the brakes
to hold the vehicle in place.
Normal Mode Grade Braking
Normal Mode Grade Braking is enabled
when the vehicle is started, but is not
enabled in Range Selection Mode. It assists
in maintaining desired vehicle speeds when
driving on downhill grades by using the
engine and transmission to slow the vehicle.
Manual Mode
Range Selection Mode
Range Selection Mode helps control the
vehicle's transmission and vehicle speed
while driving downhill or towing a trailer by
letting you select a desired range of gears.
To use this feature:1. Move the shift lever to L (Manual Mode).
2. Press the plus/minus button on the shift lever to select the desired range of gears
for current driving conditions. When the shift lever is moved from
D (Drive) to L (Manual Mode), a number
displays next to the L, indicating the current
transmission range.
This number is the highest gear that the
transmission will command while operating
in L (Manual Mode). All gears below that
number are available. As driving conditions
change, the transmission can automatically
shift to lower gears. For example, when L5 is
selected, 1 (First) through 5 (Fifth) gears are
automatically shifted by the transmission,
but 6 (Sixth) cannot be used until the plus/
minus button on the shift lever is used to
change to the range.
When the shift lever is moved from
D (Drive) to L (Manual Mode), a downshift
may occur. The gear that the transmission is
operating in when the shift lever is moved
from D (Drive) to L (Manual Mode)
determines if a downshift occurs. See the
following chart.

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Driving and Operating 197
Shifting Into 2m
Turn the knob to 2mat any speed, except
when shifting from 4
n.
Shifting Into 4
n
When 4nis engaged, vehicle speed should
be kept below 72 km/h (45 mph).
1. The ignition must be on and the vehicle must be stopped or moving less than
5 km/h (3 mph) with the transmission in
N (Neutral). It is best for the vehicle to
be moving 1.6 to 3.2 km/h (1 to 2 mph).
2. Turn the knob to 4
n. Wait for the 4n
indicator light to stop flashing before
shifting the transmission into gear.
If the transmission is in gear and/or moving
more than 5 km/h (3 mph), the 4
nindicator
light will flash for 30 seconds, but will not
complete the shift. After 30 seconds the
transfer case will shift to 4
m. Turn the knob
to 4
mto see the indicator. With the vehicle
moving less than 5 km/h (3 mph), and the
transmission in N (Neutral), attempt the shift
again. Shifting Out of 4
n
1. To shift out of 4nthe vehicle must be
stopped or moving less than 5 km/h
(3 mph) with the transmission in
N (Neutral) and the ignition on. It is best
for the vehicle to be moving
1.6 to 3.2 km/h (1 to 2 mph).
2. Turn the knob to 4
mor 2m. Wait for the
4
mor 2mindicator light to stop flashing
before shifting the transmission
into gear.
If the transmission is in gear and/or moving
more than 5 km/h (3 mph), the 4
mor 2m
indicator light will flash for 30 seconds, but
will not complete the shift. With the vehicle
moving less than 5 km/h (3 mph), and the
transmission in N (Neutral), attempt the shift
again.
Shifting Into N (Neutral)
To shift: 1. Park the vehicle on a level surface.
2. Set the parking brake and press and hold the brake pedal. See Parking Brake
0 201.
3. Start the vehicle or turn the ignition on.
4. Shift the transmission to N (Neutral). 5. Shift the transfer case to 2
m.
6. Turn the transfer case knob clockwise past the 4
ndetent to N (Neutral) until it
stops and hold it there until the
N (Neutral) light starts flashing. This will
take at least 10 seconds. Then slowly
release the knob to the 4
nposition. The
N (Neutral) light will come on when the
transfer case shift to N (Neutral) is
complete.
7. With the engine running, verify that the transfer case is in N (Neutral) by shifting
the transmission to R (Reverse), then to
D (Drive). There should be no movement
of the vehicle while shifting the
transmission.
8. Turn the engine off, and the ignition to ACC/ACCESSORY.
9. Place the transmission shift lever in P (Park). See Recreational Vehicle Towing
0 301.
Shifting Out of N (Neutral)
To shift: 1. Set the parking brake.
2. Turn the ignition on with the engine off.
3. Shift the transmission to N (Neutral).

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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200 Driving and Operating
Caution
Shifting the transmission into gear before
the requested mode indicator light has
stopped flashing could damage the
transfer case.
If the transmission is in gear and/or moving
more than 5 km/h (3 mph), the 4
m, AUTO,
or 2
mindicator light will flash for
30 seconds but will not complete the shift.
With the vehicle moving less than 5 km/h
(3 mph), and the transmission in N (Neutral),
attempt the shift again.
Shifting Into N (Neutral)
To shift:
1. Park the vehicle on a level surface.
2. Set the parking brake and press and hold the brake pedal. See Parking Brake
0 201.
3. Start the vehicle or turn the ignition on.
4. Shift the transmission to N (Neutral).
5. Shift the transfer case to 2
m.
6. Turn the transfer case shift knob clockwise past the 4
ndetent to
N (Neutral) until it stops and hold it
there until the N (Neutral) light starts flashing. This will take at least
10 seconds. Then slowly release the knob
to the 4
nposition. The N (Neutral) light
will come on when the transfer case
shift to N (Neutral) is complete.
7. With the engine running, verify that the transfer case is in N (Neutral) by shifting
the transmission to R (Reverse), then
shift the transmission to D (Drive). There
should be no movement of the vehicle
while shifting the transmission.
8. Turn the engine off, and the ignition to ACC/ACCESSORY.
9. Place the transmission shift lever in P (Park).
Shifting Out of N (Neutral)
To shift: 1. Set the parking brake.
2. Turn the ignition on with the engine off.
3. Shift the transmission to N (Neutral).
4. Turn the transfer case shift knob to 2
m.
After the transfer case has shifted out of
N (Neutral), the N (Neutral) light will
go out and the new 2
mstate will be
displayed. 5. Place the transmission shift lever in
P (Park).
6. Release the parking brake.
Brakes
Antilock Brake System (ABS)
The Antilock Brake System (ABS) helps
prevent a braking skid and maintain steering
while braking hard.
ABS performs a system check when the
vehicle is first driven. A momentary motor
or clicking noise may be heard while this
test is going on, and the brake pedal may
move slightly. This is normal.
If there is a problem with ABS, this warning
light stays on. See Antilock Brake System
(ABS) Warning Light 089.
ABS does not change the time needed to
get a foot on the brake pedal and does not
always decrease stopping distance. If you

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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202 Driving and Operating
pedal release to accelerator pedal apply. The
brakes release when the accelerator pedal is
applied or automatically release after a few
seconds. The brakes may also release under
other conditions. Do not rely on HSA to hold
the vehicle.
HSA is available when the vehicle is facing
uphill in a forward gear, or when facing
downhill in R (Reverse). The vehicle must
come to a complete stop on a grade for HSA
to activate.
Ride Control Systems
Traction Control/Electronic
Stability Control
System Operation
The vehicle has a Traction Control System
(TCS) and StabiliTrak/Electronic Stability
Control (ESC), an electronic stability control
system. These systems help limit wheel spin
and assist the driver in maintaining control,
especially on slippery road conditions.
TCS activates if it senses that any of the
drive wheels are spinning or beginning to
lose traction. When this happens, TCSapplies the brakes to the spinning wheels
and reduces engine power to limit
wheel spin.
StabiliTrak/ESC activates when the vehicle
senses a difference between the intended
path and the direction the vehicle is actually
traveling. StabiliTrak/ESC selectively applies
braking pressure to any one of the vehicle
wheel brakes to assist the driver in keeping
the vehicle on the intended path.
If cruise control is being used and TCS or
StabiliTrak/ESC begins to limit wheel spin,
cruise control will disengage. Cruise control
may be turned back on when road
conditions allow.
Both systems come on automatically when
the vehicle is started and begins to move.
The systems may be heard or felt while
they are operating or while performing
diagnostic checks. This is normal and does
not mean there is a problem with the
vehicle.
It is recommended to leave both systems on
for normal driving conditions, but it may be
necessary to turn TCS off if the vehicle gets
stuck in sand, mud, ice, or snow. See
If the
Vehicle Is Stuck 0177 and “Turning the
Systems Off and On” later in this section. When the transfer case (if equipped) is in 4
n, the stability system is automatically
disabled, and
gcomes on in the instrument
cluster. Both TCS and StabiliTrak/ESC are
automatically disabled.
The indicator light for both systems is in the
instrument cluster. This light will:
.Flash when TCS is limiting wheel spin.
.Flash when StabiliTrak/ESC is activated.
.Turn on and stay on when either system
is not working.
If either system fails to turn on or to
activate, a message displays in the Driver
Information Center (DIC), and
dcomes on
and stays on to indicate that the system is
inactive and is not assisting the driver in
maintaining control. The vehicle is safe to
drive, but driving should be adjusted
accordingly.
If
dcomes on and stays on:
1. Stop the vehicle.

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Driving and Operating 203
2. Turn the engine off and wait 15 seconds.
3. Start the engine.
Drive the vehicle. If
dcomes on and stays
on, the vehicle may need more time to
diagnose the problem. If the condition
persists, see your dealer.
Turning the Systems Off and On
(Except ZR2)
The button for TCS and StabiliTrak/ESC is on
the center stack.
Caution
Do not repeatedly brake or accelerate
heavily when TCS is off. The vehicle
driveline could be damaged. To turn off only TCS, press and release
g.
The Traction Off light
idisplays in the
instrument cluster. To turn TCS on again,
press and release
g. The Traction Off light
iin the instrument cluster will turn off.
If TCS is limiting wheel spin when
gis
pressed, the system will not turn off until
the wheels stop spinning.
To turn off both TCS and StabiliTrak/ESC,
press and hold
guntil the Traction Off light
iand StabiliTrak/ESC Off lightgcome on
and stay on in the instrument cluster. To
turn TCS and StabiliTrak/ESC on again, press
and release
g. The Traction Off lightiand
StabiliTrak/ESC Off light
gin the instrument
cluster turn off.
StabiliTrak/ESC will automatically turn on if
the vehicle exceeds 56 km/h (35 mph). TCS
will remain off until
gis pressed or until
the ignition is turned off and then back on.
Adding accessories can affect the vehicle
performance. See Accessories and
Modifications 0237.
Turning the Systems Off and On
(ZR2 Only)
The button for TCS and StabiliTrak/ESC is on
the center stack.
Caution
Do not repeatedly brake or accelerate
heavily when TCS is off. The vehicle
driveline could be damaged.
To turn off only TCS, press and release
g.
The Traction Off light
iand StabiliTrak/ESC
Off light
gdisplay in the instrument
cluster. To turn TCS on again, press and
release
g. The Traction Off lightiand
StabiliTrak/ESC Off light
gin the instrument
cluster will turn off.
If TCS is limiting wheel spin when
gis
pressed, the system will not turn off until
the wheels stop spinning.

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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218 Driving and Operating
Warning (Continued)
.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.
.Before touching the fill nozzle, touch a
metallic object to discharge static
electricity from your body.
.Fuel can spray out if the fill nozzle is
inserted too quickly. This spray can
happen if the tank is nearly full, and is
more likely in hot weather. Insert the
fill nozzle slowly and wait for any hiss
noise to stop before beginning to
flow fuel.
To open the fuel door, push and release the
rearward center edge of the door.
The capless refueling system does not have
a fuel cap. Fully insert and latch the fill
nozzle, then begin fueling.
{Warning
Overfilling the fuel tank by more than
three clicks of a standard fill nozzle may
cause:
.Vehicle performance issues, including
engine stalling and damage to the fuel
system.
.Fuel spills.
.Under certain conditions, fuel fires.Be careful not to spill fuel. Wait five seconds
after you have finished pumping before
removing the fill nozzle. Clean fuel from
painted surfaces as soon as possible. See
Exterior Care
0304. Push the fuel door
closed.
{Warning
If a fire starts while you are refueling, do
not remove the fill nozzle. Shut off the
flow of fuel by shutting off the pump or
by notifying the station attendant. Leave
the area immediately.
Filling the Tank with a Portable Fuel
Container
If the vehicle runs out of fuel and must be
filled from a portable fuel container:
1. Locate the capless funnel adapter.
2. Insert and latch the funnel into the capless fuel system.