2019 CHEVROLET COLORADO check engine

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12460274) - 2019 - CRC - 10/1/18
200 Driving and Operating
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.
SeeIf the Vehicle Is Stuck 0167
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
g
comes 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.
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.

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12460274) - 2019 - CRC - 10/1/18
Driving and Operating 221
Warning (Continued)
.Adjust the climate control
system to a setting that
brings in only outside air.
See “Climate Control
Systems” in the Index.
For more information about
carbon monoxide, see Engine
Exhaust 0182.
Towing a trailer requires experience.
The combination of the vehicle and
trailer is longer and not as
responsive as the vehicle itself. Get
used to the handling and braking of
the combination by driving on a
level road surface before driving on
public roads.
The trailer structure, the tires, and
the brakes must all be rated to carry
the intended cargo. Inadequate
trailer equipment can cause the
combination to operate in an
unexpected or unsafe manner.
Before driving, inspect all trailer
hitch parts and attachments, safety
chains, electrical connectors, lamps, tires, and mirrors. See
Towing
Equipment 0229. If the trailer has
electric brakes, start the
combination moving and then
manually apply the trailer brake
controller to check the trailer brakes
work. During the trip, occasionally
check that the cargo and trailer are
secure and that the lamps and any
trailer brakes are working.
Towing with a Stability Control
System
When towing, the stability control
system might be heard. The system
reacts to vehicle movement caused
by the trailer, which mainly occurs
during cornering. This is normal
when towing heavier trailers.
Following Distance
Stay at least twice as far behind the
vehicle ahead as you would when
driving without a trailer. This can
help to avoid heavy braking and
sudden turns.
Passing
More passing distance is needed
when towing a trailer. The
combination of the vehicle and
trailer will not accelerate as quickly
and is much longer than the vehicle
alone. It is necessary to go much
farther beyond the passed vehicle
before returning to the lane. Pass
on level roadways. Avoid passing
on hills if possible.
Backing Up
Hold the bottom of the steering
wheel with one hand. To move the
trailer to the left, move that hand to
the left. To move the trailer to the
right, move that hand to the right.
Always back up slowly and,
if possible, have someone
guide you.

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12460274) - 2019 - CRC - 10/1/18
224 Driving and Operating
6. Reapply the brake pedal. Thenapply the parking brake and
shift into P (Park). If equipped
with a manual transmission,
turn off the engine and move
the shift lever into
1 (First) gear.
7. Release the brake pedal.
Pulling the Trailer from the Water
To pull the trailer of the water: 1. Press and hold the brake pedals.
2. Start the engine and shift into gear.
3. Release the parking brake.
4. Let up on the brake pedal.
5. Drive slowly until the tires are clear of the chocks.
6. Stop and have someone pick up and store the chocks.
7. Slowly pull the trailer from the water.
8. Once the vehicle and trailer have been driven from the
sloped part of the boat ramp, the vehicle can be shifted from
four-wheel-drive high. Shift into
the drive mode that is
appropriate for the road
conditions.
Caution
If the vehicle tires begin to spin
and the vehicle begins to slide
toward the water, remove your
foot from the accelerator pedal
and apply the brake pedal. Seek
help to have the vehicle towed up
the ramp.
Maintenance when Trailer
Towing
The vehicle needs service more
often when used to tow trailers. See
Maintenance Schedule
0331. It is
especially important to check the
automatic transmission fluid, engine
oil, axle lubricant, belts, cooling
system, and brake system before
and during each trip. Check periodically to see that all
nuts and bolts on the trailer hitch
are tight.
Engine Cooling When Trailer
Towing
The cooling system may temporarily
overheat during severe operating
conditions. See
Engine Overheating
0 256.
Trailer Towing
If equipped with a diesel engine,
see the Duramax diesel
supplement.
Caution
Towing a trailer improperly can
damage the vehicle and result in
costly repairs not covered by the
vehicle warranty. To tow a trailer
correctly, follow the directions in
this section and see your dealer
for important information about
towing a trailer with the vehicle.

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12460274) - 2019 - CRC - 10/1/18
Driving and Operating 227
SAE J2807 CompliantEngine Axle Ratio Maximum Trailer Weight GCWR (a)
2.5L L4 4.10 1 587 kg (3,500 lb) 3 856 kg (8,500 lb)
3.6L V6 * 3.42 3 175 kg (7,000 lb) 5 443 kg (12,000 lb)
3.6L V6 (ZR2) 3.42 2 268 kg (5,000 lb) 4 672 kg (10,300 lb)
(a) The Gross Combination Weight Rating (GCWR) is the total allowable weight of the completely loaded vehicle
and trailer including any passengers, cargo, equipment, and conversions. The GCWR for the vehicle should not be
exceeded.
(*) Valid only for vehicles with Z82 trailering package. If the vehicle has a bumper mounted hitch then the maximum
trailer weight is limited to 1 587 kg (3,500 lb) and GCWR is limited to 3 856 kg (8,500 lb).
A step bumper trailer hitch can only
support a total trailer weight up to
2,271 kg (5,000 lb). If a trailer hitch
ball is added to the step bumper,
check the hitch ball rating to be sure
it is higher than the total trailer
weight.
Maximum Trailer Tongue
Weight Rating
The Maximum Trailer Tongue
Weight Rating is the allowable
trailer tongue weight that the vehicle
can support using a conventional
trailer hitch. It may be necessary to
reduce the overall trailer weight to
stay within the maximum trailer
tongue weight rating while still
maintaining the correct trailer load
balance.
Do not exceed a maximum trailer
tongue weight of 349 (770 lb).

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12460274) - 2019 - CRC - 10/1/18
Driving and Operating 235
To determine whether the electrical
fault is on the vehicle side or trailer
side of the trailer wiring harness
connection:1. Disconnect the trailer wiring harness from the vehicle.
2. Turn the ignition off.
3. Wait 10 seconds, then turn the ignition back to RUN.
4. If the CHECK TRAILER WIRING message reappears,
the electrical fault is on the
vehicle side.
If the CHECK TRAILER WIRING
message only reappears when
connecting the trailer wiring harness
to the vehicle, the electrical fault is
on the trailer side.
SERVICE TRAILER BRAKE
SYSTEM: This message will display
when there is a problem with the
ITBC system. If this message
continues over multiple ignition
cycles, have the vehicle serviced.
If either the CHECK TRAILER
WIRING or SERVICE TRAILER
BRAKE SYSTEM message displays while driving, the ITBC system may
not be fully functional or may not
function at all. When traffic
conditions allow, carefully pull the
vehicle over to the side of the road
and turn the ignition off. Check the
wiring connection to the trailer and
turn the ignition back on. If either of
these messages continues, either
the vehicle or trailer needs service.
A GM dealer may be able to
diagnose and repair problems with
the trailer. However, any diagnosis
and repair of the trailer is not
covered under the vehicle warranty.
Contact your trailer dealer for
assistance with trailer repairs and
trailer warranty information.
Trailer Sway
Control (TSC)
Vehicles with StabiliTrak/Electronic
Stability Control (ESC) have a
Trailer Sway Control (TSC) feature.
Trailer sway is unintended
side-to-side motion of a trailer while
towing. If the vehicle is towing a
trailer and the TSC detects that
sway is increasing, the vehiclebrakes are selectively applied at
each wheel, to help reduce
excessive trailer sway. If equipped
with the Integrated Trailer Brake
Control (ITBC) system, and the
trailer has an electric brake system,
StabiliTrak/ESC may also apply the
trailer brakes.If TSC is enabled, the Traction
Control System (TCS)/StabiliTrak/
ESC warning light will flash on the
instrument cluster. Reduce vehicle
speed by gradually removing your
foot from the accelerator. If trailer
sway continues, StabiliTrak/ESC
can reduce engine torque to help

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12460274) - 2019 - CRC - 10/1/18
Driving and Operating 237
Warning (Continued)
.If the trailer brakes are not
operating properly at any
time, or if a DIC message
indicates problems with the
trailer connections or trailer
brakes, carefully pull the
vehicle over to the side of
the road when traffic
conditions allow.
Trailer Tires
Special Trailer (ST) tires differ from
vehicle tires. Trailer tires are
designed with stiff sidewalls to help
prevent sway and to support heavy
loads. These features can make it
difficult to determine if the trailer tire
pressures are low only based on a
visual inspection.
Always check all trailer tire
pressures before each trip when the
tires are cool. Low trailer tire
pressure is a leading cause of trailer
tire blow-outs. Trailer tires deteriorate over time.
The trailer tire sidewall will show the
week and year the tire was
manufactured. Many trailer tire
manufacturers recommend
replacing tires more than six
years old.
Overloading is another leading
cause of trailer tire blow-outs. Never
load your trailer with more weight
than the tires are designed to
support. The load rating is located
on the trailer tire sidewall.
Always know the maximum speed
rating for the trailer tires before
driving. This may be significantly
lower than the vehicle tire speed
rating. The speed rating may be on
the trailer tire sidewall. If the speed
rating is not shown, the default
trailer tire speed rating is 105 km/h
(65 mph).
Conversions and
Add-Ons
Add-On Electrical
Equipment
{Warning
The Data Link Connector (DLC) is
used for vehicle service
and Emission Inspection/
Maintenance testing. See
Malfunction Indicator Lamp
(Check Engine Light)
0120.
A device connected to the DLC —
such as an aftermarket fleet or
driver-behavior tracking device —
may interfere with vehicle
systems. This could affect vehicle
operation and cause a crash.
Such devices may also access
information stored in the vehicle’s
systems.

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12460274) - 2019 - CRC - 10/1/18
Vehicle Care 239
Vehicle Care
General Information
General Information . . . . . . . . . . 240
California Proposition65 Warning . . . . . . . . . . . . . . . . . 240
California Perchlorate Materials Requirements . . . . . 241
Accessories and Modifications . . . . . . . . . . . . . . . . 241
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 241
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 242
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 243
Engine Oil . . . . . . . . . . . . . . . . . . . . 246
Engine Oil Life System . . . . . . . 248
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . 250
Manual Transmission Fluid . . . 250
Hydraulic Clutch . . . . . . . . . . . . . . 250
Engine Air Cleaner/Filter . . . . . . 251
Cooling System . . . . . . . . . . . . . . 253
Engine Overheating . . . . . . . . . . 256
Engine Fan . . . . . . . . . . . . . . . . . . . 257
Washer Fluid . . . . . . . . . . . . . . . . . 258
Brakes . . . . . . . . . . . . . . . . . . . . . . . 258 Brake Fluid . . . . . . . . . . . . . . . . . . . 259
Battery - North America . . . . . . 260
Four-Wheel Drive . . . . . . . . . . . . . 261
Front Axle . . . . . . . . . . . . . . . . . . . . 262
Rear Axle . . . . . . . . . . . . . . . . . . . . 263
Starter Switch Check . . . . . . . . . 263
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 264
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . 264
Park Brake and P (Park) Mechanism Check . . . . . . . . . . 265
Wiper Blade Replacement . . . . 265
Windshield Replacement . . . . . 266
Gas Strut(s) . . . . . . . . . . . . . . . . . . 266
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 267
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 267
Halogen Bulbs . . . . . . . . . . . . . . . . 267
Headlamps, Front Turn Signal, Sidemarker, and Parking
Lamps . . . . . . . . . . . . . . . . . . . . . . 268
Taillamps, Turn Signal, Stoplamps, and Back-Up
Lamps . . . . . . . . . . . . . . . . . . . . . . 268 Center High-Mounted
Stoplamp (CHMSL) and
Cargo Lamp . . . . . . . . . . . . . . . . . 270
Electrical System
Electrical System Overload . . . 270
Fuses and Circuit Breakers . . . 271
Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 272
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 276
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 278
All-Season Tires . . . . . . . . . . . . . . 279
Winter Tires . . . . . . . . . . . . . . . . . . 279
All-Terrain Tires . . . . . . . . . . . . . . . 280
Tire Sidewall Labeling . . . . . . . . 280
Tire Designations . . . . . . . . . . . . . 282
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . 283
Tire Pressure . . . . . . . . . . . . . . . . . 285
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 286
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 288
Tire Inspection . . . . . . . . . . . . . . . . 291
Tire Rotation . . . . . . . . . . . . . . . . . 291
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 292
Buying New Tires . . . . . . . . . . . . . 293

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12460274) - 2019 - CRC - 10/1/18
246 Vehicle Care
1. Coolant Surge Tank andPressure Cap. See Cooling
System 0253.
2. Engine Air Cleaner/Filter 0251.
3. Engine Oil Dipstick. See Engine Oil 0246.
4. Engine Cooling Fan (Out of View). See Cooling System
0 253.
5. Engine Oil Fill Cap. See Engine Oil 0246.
6. Engine Compartment Fuse
Block 0272.
7. Brake Fluid Reservoir. See Brake Fluid 0259.
8. Windshield Washer Fluid Reservoir. See Washer Fluid
0 258.
9. Battery - North America 0260.
If the vehicle has a diesel engine,
see the Duramax diesel
supplement.Engine Oil
For diesel engine vehicles, see
“Engine Oil” in the Duramax diesel
supplement.
To ensure proper engine
performance and long life, careful
attention must be paid to engine oil.
Following these simple, but
important steps will help protect
your investment:
. Use engine oil approved to the
proper specification and of the
proper viscosity grade. See
“Selecting the Right Engine Oil”
in this section.
. Check the engine oil level
regularly and maintain the
proper oil level. See “Checking
Engine Oil” and“When to Add
Engine Oil” in this section.
. Change the engine oil at the
appropriate time. See Engine Oil
Life System 0248.
. Always dispose of engine oil
properly. See “What to Do with
Used Oil” in this section.
Checking Engine Oil
Check the engine oil level regularly,
every 650 km (400 mi), especially
prior to a long trip. The engine oil
dipstick handle is a loop. See
Engine Compartment Overview
0243 for the location.
{Warning
The engine oil dipstick handle
may be hot; it could burn you.
Use a towel or glove to touch the
dipstick handle.
If a low oil Driver Information Center
(DIC) message displays, check the
oil level.
Follow these guidelines:
. To get an accurate reading, park
the vehicle on level ground.
Check the engine oil level after
the engine has been off for at
least two hours. Checking the
engine oil level on steep grades
or too soon after engine shutoff
can result in incorrect readings.
Accuracy improves when