2006 CHEVROLET COLORADO turn signal

Turn Signals When Towing a Trailer
When you tow a trailer, your vehicle has to have extra
wiring and a heavy-duty turn signal asher.
The arrows on your instrument panel will ash whenever
you signal a turn or lane change. Properly hooked up, the
trailer lamps will also ash, telling other drivers you’re
about to turn, change lanes or stop.
When towing a trailer, the arrows on your instrument
panel will ash for turns even if the bulbs on the trailer are
burned out. Thus, you may think drivers behind you are
seeing your signal when they are not. It’s important to
check occasionally to be sure the trailer bulbs are still
working.
Driving On Grades
Reduce speed and shift to a lower gear before you start
down a long or steep downgrade. If you don’t shift down,
you might have to use your brakes so much that they
would get hot and no longer work well.
When towing at high altitude on steep uphill grades,
consider the following: Engine coolant will boil at a lower
temperature than at normal altitudes. If you turn your
engine off immediately after towing at high altitude on
steep uphill grades, your vehicle may show signs similar
to engine overheating. To avoid this, let the engine run
while parked (preferably on level ground) with the
automatic transmission in PARK (P) (or the manual
transmission out of gear and the parking brake applied)
for a few minutes before turning the engine off. If you do
get the overheat warning, seeEngine Overheating on
page 5-27.
4-68

Maintenance When Trailer Towing
Your vehicle will need service more often when you’re
pulling a trailer. SeeScheduled Maintenance on page 6-4
for more on this. Things that are especially important
in trailer operation are automatic transmission uid
(don’t overll), engine oil, axle lubricant, belt, cooling
system and brake system. Each of these is covered in
this manual, and the Index will help you nd them quickly.
If you’re trailering, it’s a good idea to review these
sections before you start your trip.
Check periodically to see that all hitch nuts and bolts
are tight.
Trailer Wiring Harness
Your vehicle may be equipped with a four-pin trailer
towing harness. This harness has a four-pin trailer
connector that is attached to a bracket on the hitch
platform. The four-wire harness contains the following
trailer circuits:
Yellow: Left Stop/Turn Signal
Green: Right Stop/Turn Signal
Brown: Taillamps/Park lamps
White: Ground
Trailer Recommendations
You must subtract your hitch load from the CWR for your
vehicle. Weigh your vehicle with your trailer attached, so
that you won’t go over the GVWR or the GAWR.
You’ll get the best performance if you spread out the
weight of your load the right way, and if you choose the
correct hitch and trailer brakes.
For more information, seeTowing a Trailer on page 4-56
later in this section.
4-70

Service............................................................5-3
Accessories and Modications..........................5-3
California Proposition 65 Warning.....................5-3
Doing Your Own Service Work.........................5-4
Adding Equipment to the Outside
of Your Vehicle...........................................5-5
Fuel................................................................5-5
Gasoline Octane............................................5-5
Gasoline Specications....................................5-5
California Fuel...............................................5-6
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-7
Filling the Tank..............................................5-8
Filling a Portable Fuel Container.....................5-10
Checking Things Under the Hood....................5-10
Hood Release..............................................5-11
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-13
Engine Oil Life System..................................5-16
Engine Air Cleaner/Filter................................5-18
Automatic Transmission Fluid.........................5-19
Manual Transmission Fluid.............................5-22
Hydraulic Clutch...........................................5-23
Engine Coolant.............................................5-24Radiator Pressure Cap..................................5-26
Engine Overheating.......................................5-27
Cooling System............................................5-28
Engine Fan Noise.........................................5-33
Power Steering Fluid.....................................5-33
Windshield Washer Fluid................................5-34
Brakes........................................................5-35
Battery........................................................5-39
Jump Starting...............................................5-40
Rear Axle.......................................................5-44
Four-Wheel Drive............................................5-44
Front Axle......................................................5-45
Bulb Replacement..........................................5-46
Halogen Bulbs..............................................5-46
Headlamps..................................................5-47
Front Turn Signal, Parking and Daytime
Running Lamps (DRL)................................5-48
Center High-Mounted Stoplamp (CHMSL).........5-48
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps.........................................5-49
Replacement Bulbs.......................................5-50
Windshield Wiper Blade Replacement..............5-50
Section 5 Service and Appearance Care
5-1

Front Turn Signal, Parking and
Daytime Running Lamps (DRL)
To replace one of these bulbs, do the following:
1. Open the hood. SeeHood Release on page 5-11
for more information.
2. Reach in to access either one of the bulb sockets.
3. Turn the bulb socket counterclockwise and
remove it from the lamp assembly.
4. Remove the old bulb from the bulb socket.5. Insert the new bulb into the bulb socket.
6. Insert the bulb socket into the lamp assembly and
turn it clockwise until it is tight.
Center High-Mounted Stoplamp
(CHMSL)
To replace the CHMSL bulb, do the following:
1. Remove the two screws and lift off the lamp
assembly.
2. Turn the bulb socket counterclockwise and remove
it from the housing.
3. Pull the bulb straight out of the socket.
4. Insert the new bulb into the socket and press it in
until tight.
5. Insert the bulb socket into the housing and turn
until tight.
6. Reinstall the lamp assembly and tighten the screws.
5-48

Taillamps, Turn Signal, Stoplamps
and Back-up Lamps
A. Stoplamp/Taillamp
B. Turn Signal/Taillamp
C. Back-up Lamp
To replace one of these bulbs, do the following:
1. Open the tailgate. SeeTailgate on page 2-10for
more information.2. Remove the two rear
lamp assembly screws
near the tailgate latch.
3. Pull out the lamp assembly.
4. Turn the bulb socket counterclockwise to remove it
from the taillamp housing.
5. Pull the old bulb straight out from the socket.
6. Press a new bulb into the socket and turn the socket
clockwise into the taillamp housing until it is tight.
7. Reinstall the rear lamp assembly and tighten the
screws.
5-49

Replacement Bulbs
Exterior Lamp Bulb Number
Center High-Mounted
Stoplamp (CHMSL)912
License Plate Bulb W5W
Headlamps
High-beam 9005
Low-beam/Daytime
Running Lamp (DRL)*9006
Parking/Front Turn Signal/Daytime
Running Lamp (DRL)*3757KA
Parking Lamp (Inboard) 3157A
Stoplamp, Rear Turn Signal,
Taillamp, and Back-up Lamp3057
* Your vehicle may have the DRL function either in
the low-beam headlamp or the parking lamp.
For replacement bulbs not listed here, contact your
dealer.
Windshield Wiper Blade
Replacement
Windshield wiper blades should be inspected for wear
and cracking. SeeScheduled Maintenance on page 6-4
for more information.
Replacement blades come in different types and are
removed in different ways. For proper type and length,
seeNormal Maintenance Replacement Parts on
page 6-14.
Allowing the wiper blade arm to touch the windshield
when no wiper blade is installed could damage the
windshield. Any damage that occurs would not be
covered by your warranty. Do not allow the wiper
blade arm to touch the windshield.
1. To remove the old wiper blades, lift the wiper arm
until it locks into a vertical position.
5-50

Assist Handles...............................................2-43
Audio System(s).............................................3-45
AM-FM Radio.............................................3-47
Care of Your CD Player...............................3-77
Care of Your CDs ........................................3-77
Chime Level Adjustment...............................3-78
Fixed Mast Antenna.....................................3-77
Radio with CD............................................3-50
Radio with Six-Disc CD................................3-65
Setting the Time for Radios
with Radio Data Systems (RDS).................3-47
Setting the Time for Radios without
Radio Data Systems (RDS).......................3-46
Theft-Deterrent Feature................................3-76
Understanding Radio Reception.....................3-76
XM™ Satellite Radio Antenna System............3-78
Automatic Headlamp System............................3-15
Automatic Transmission
Fluid..........................................................5-19
Operation...................................................2-21B
Battery..........................................................5-39
Run-Down Protection...................................3-18
Battery Warning Light......................................3-29
Before Leaving on a Long Trip.........................4-34
Brake
Anti-Lock Brake System (ABS)........................ 4-7
Emergencies................................................ 4-8
Parking......................................................2-30
System Warning Light..................................3-30
Brakes..........................................................5-35
Braking........................................................... 4-6
Break-In, New Vehicle.....................................2-17
Bulb Replacement...........................................5-46
Center High-Mounted Stoplamp (CHMSL)........5-48
Front Turn Signal, Parking and
Daytime Running Lamps...........................5-48
Halogen Bulbs............................................5-46
Headlamps.................................................5-47
Replacement Bulbs......................................5-50
Taillamps, Turn Signal, Stoplamps
and Back-up Lamps.................................5-49
Buying New Tires...........................................5-62
2

E
Electrical System
Add-On Equipment......................................5-98
Engine Compartment Fuse Block...................5-99
Fuses and Circuit Breakers...........................5-99
Windshield Wiper Fuses...............................5-98
Engine
Air Cleaner/Filter.........................................5-18
Battery.......................................................5-39
Check and Service Engine Soon Light............3-32
Coolant......................................................5-24
Coolant Heater............................................2-20
Coolant Temperature Gage...........................3-32
Engine Compartment Overview......................5-12
Exhaust.....................................................2-34
Fan Noise..................................................5-33
Oil .............................................................5-13
Oil Life System...........................................5-16
Overheating................................................5-27
Starting......................................................2-19
Event Data Recorders (EDR)............................7-10
Exit Lighting...................................................3-18
Extender, Safety Belt.......................................1-34
Exterior Cargo Lamps......................................3-17
Exterior Lamps...............................................3-14
F
Filter
Engine Air Cleaner......................................5-18
Finish Damage...............................................5-95
Fixed Mast Antenna........................................3-77
Flashers, Hazard Warning.................................. 3-6
Flash-to-Pass................................................... 3-9
Flat Tire........................................................5-68
Flat Tire, Changing.........................................5-68
Flat Tire, Storing.............................................5-84
Fluid
Automatic Transmission................................5-19
Manual Transmission....................................5-22
Power Steering...........................................5-33
Windshield Washer......................................5-34
Fog Lamps ....................................................3-16
Four-Wheel Drive....................................2-26, 5-44
Front Armrest Storage Area..............................2-43
Front Axle......................................................5-45
Front Turn Signal, Parking and
Daytime Running Lamps...............................5-48
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Filling a Portable Fuel Container....................5-10
5