2006 CHEVROLET COLORADO fuel pressure

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Other Warning Devices...................................3-6
Horn .............................................................3-6
Tilt Wheel.....................................................3-7
Turn Signal/Multifunction Lever.........................3-7
Turn and Lane-Change Signals........................3-8
Headlamp High/Low-Beam Changer..................3-9
Flash-to-Pass.................................................3-9
Windshield Wipers..........................................3-9
Windshield Washer.......................................3-10
Cruise Control..............................................3-11
Exterior Lamps.............................................3-14
Headlamps on Reminder................................3-15
Daytime Running Lamps (DRL).......................3-15
Automatic Headlamp System..........................3-15
Fog Lamps ..................................................3-16
Exterior Cargo Lamps....................................3-17
Interior Lamps..............................................3-17
Instrument Panel Brightness...........................3-17
Dome Lamp .................................................3-17
Dome Lamp Override....................................3-17
Exit Lighting.................................................3-18
Battery Run-Down Protection..........................3-18
Accessory Power Outlet(s).............................3-18
Ashtray(s) and Cigarette Lighter......................3-19Climate Controls............................................3-19
Climate Control System.................................3-19
Outlet Adjustment.........................................3-21
Warning Lights, Gages,
and Indicators.............................................3-22
Instrument Panel Cluster................................3-23
Speedometer and Odometer...........................3-24
Trip Odometer..............................................3-24
Tachometer.................................................3-24
Safety Belt Reminder Light.............................3-25
Passenger Safety Belt Reminder Light.............3-25
Airbag Readiness Light..................................3-26
Passenger Airbag Status Indicator...................3-27
Battery Warning Light....................................3-29
Up-Shift Light (Manual Transmission)...............3-30
Brake System Warning Light..........................3-30
Anti-Lock Brake System Warning Light.............3-31
Engine Coolant Temperature Gage..................3-32
Malfunction Indicator Lamp.............................3-32
Oil Pressure Light.........................................3-35
Security Light...............................................3-36
Cruise Control Light......................................3-36
Highbeam On Light.......................................3-36
Daytime Running Lamps (DRL) Indicator
Light........................................................3-37
Fuel Gage...................................................3-37
Section 3 Instrument Panel
3-1

ENG (Engine) HOT
This message will be displayed when your engine
coolant temperature is hot. Check your engine coolant
temperature gage. SeeEngine Coolant Temperature
Gage on page 3-32for more information. You should
have your vehicle serviced by your GM dealer as soon
as possible if you suspect your engine is overheating.
SeeEngine Overheating on page 5-27for more
information.
FLUID
This message will be displayed if your brake uid is low.
Check the brake uid as soon as possible and have
your vehicle serviced by your GM dealer. SeeBrakes
on page 5-35for more information. Press the reset stem
to acknowledge the message and clear it from the
DIC display.
FUEL CAP
This message will be displayed if your vehicle’s fuel cap
is either off or loose. You should pull over and check
to see if your vehicle’s fuel cap is secure as soon
as possible. You may also see the check engine light
on the instrument panel cluster. SeeMalfunction
Indicator Lamp on page 3-32for more information.
Press the reset stem to acknowledge the message
and clear it from the display.
LOW FUEL
This message will be displayed if the level of fuel in
your vehicle is low. You should also check your
fuel gage. SeeFuel Gage on page 3-37for more
information. You should ll your vehicle’s tank as
soon as possible.
LOW TRAC (Traction)
If you have the Traction Control System (TCS), you
will see this message when a low traction condition
is detected. SeeTraction Control System (TCS)
on page 4-9for more information. Press and release
the reset stem to acknowledge the message and clear
it from the DIC display.
OIL
This message will be displayed when your oil pressure
is low. SeeOil Pressure Light on page 3-35and
Engine Oil on page 5-13for more information.
PARK BRK (Brake)
This message will be displayed when the parking
brake is set. SeeParking Brake on page 2-30and
Brake System Warning Light on page 3-30for more
information. The message will clear from the display
after the parking brake is released or by pressing
and releasing the reset stem.
3-43

Here are some things you can check before a trip:
Windshield Washer Fluid:Is the reservoir full?
Are all windows clean inside and outside?
Wiper Blades:Are they in good shape?
Fuel, Engine Oil, Other Fluids:Have you checked
all levels?
Lamps:Are they all working? Are the lenses clean?
Tires:They are vitally important to a safe,
trouble-free trip. Is the tread good enough for
long-distance driving? Are the tires all inated to the
recommended pressure?
Weather Forecasts:What is the weather outlook
along your route? Should you delay your trip a
short time to avoid a major storm system?
Maps:Do you have up-to-date maps?
Highway Hypnosis
Is there actually such a condition as highway hypnosis?
Or is it just plain falling asleep at the wheel? Call it
highway hypnosis, lack of awareness, or whatever.
There is something about an easy stretch of road with
the same scenery, along with the hum of the tires on the
road, the drone of the engine, and the rush of the wind
against the vehicle that can make you sleepy. Do not let it
happen to you! If it does, your vehicle can leave the road
in less than a second, and you could crash and be
injured.
What can you do about highway hypnosis? First, be
aware that it can happen.
Then here are some tips:
Make sure your vehicle is well ventilated, with a
comfortably cool interior.
Keep your eyes moving. Scan the road ahead
and to the sides. Check your mirrors and your
instruments frequently.
If you get sleepy, pull off the road into a rest, service,
or parking area and take a nap, get some exercise,
or both. For safety, treat drowsiness on the highway
as an emergency.
4-35

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

A. Windshield Washer Fluid. See “Adding Washer
Fluid” underWindshield Washer Fluid on page 5-34.
B. Engine Coolant Recovery Tank. SeeEngine
Coolant on page 5-24.
C. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 5-18.
D. Power Steering Fluid Reservoir (low in engine
compartment). SeePower Steering Fluid on
page 5-33.
E. Automatic Transmission Fluid Dipstick (If Equipped).
See “Checking the Fluid Level” underAutomatic
Transmission Fluid on page 5-19.
F. Engine Oil Fill Cap. See “When to Add Engine Oil”
underEngine Oil on page 5-13.
G. Radiator Pressure Cap. SeeCooling System on
page 5-28.
H. Remote Negative (−) Terminal (GND). SeeJump
Starting on page 5-40.
I. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 5-13.
J. Remote Positive (+) Terminal. SeeJump Starting on
page 5-40.
K. Brake Fluid Reservoir. See “Brake Fluid” under
Brakes on page 5-35.L. Engine Compartment Fuse Block. SeeEngine
Compartment Fuse Block on page 5-99.
M. Battery. SeeBattery on page 5-39.
N. Hydraulic Clutch Fluid Reservoir (If Equipped).
SeeHydraulic Clutch on page 5-23.
Engine Oil
Checking Engine Oil
It is a good idea to check your engine oil every time you
get fuel. In order to get an accurate reading, the oil must
be warm and the vehicle must be on level ground.
The engine oil dipstick handle is a yellow loop.
SeeEngine Compartment Overview on page 5-12
for the location of the engine oil dipstick.
1. Turn off the engine and give the oil several minutes
to drain back into the oil pan. If you do not do this,
the oil dipstick might not show the actual level.
2. Pull out the dipstick and clean it with a paper towel
or cloth, then push it back in all the way. Remove it
again, keeping the tip down, and check the level.
5-13

(D) Construction Code:A letter code is used to
indicate the type of ply construction in the tire. The
letter R means radial ply construction; the letter D means
diagonal or bias ply construction; and the letter B means
belted-bias ply construction.
(E) Rim Diameter:Diameter of the wheel in inches.
(F) Service Description:These characters represent
the load range and speed rating of the tire. The load
index represents the load carry capacity a tire is certied
to carry. The load index can range from 1 to 279. The
speed rating is the maximum speed a tire is certied
to carry a load. Speed ratings range from A to Z.
Tire Terminology and Denitions
Air Pressure:The amount of air inside the tire pressing
outward on each square inch of the tire. Air pressure
is expressed in pounds per square inch (psi) or
kilopascal (kPa).
Accessory Weight:This means the combined weight
of optional accessories. Some examples of optional
accessories are, automatic transmission, power steering,
power brakes, power windows, power seats, and air
conditioning.
Aspect Ratio:The relationship of a tire’s height to
its width.Belt:A rubber coated layer of cords that is located
between the plies and the tread. Cords may be made
from steel or other reinforcing materials.
Bead:The tire bead contains steel wires wrapped by
steel cords that hold the tire onto the rim.
Bias Ply Tire:A pneumatic tire in which the plies are
laid at alternate angles less than 90 degrees to the
centerline of the tread.
Cold Ination Pressure:The amount of air pressure
in a tire, measured in pounds per square inch (psi) or
kilopascals (kPa) before a tire has built up heat from
driving. SeeInation - Tire Pressure on page 5-58.
Curb Weight:This means the weight of a motor vehicle
with standard and optional equipment including the
maximum capacity of fuel, oil, and coolant, but without
passengers and cargo.
DOT Markings:A code molded into the sidewall of a
tire signifying that the tire is in compliance with the U.S.
Department of Transportation (DOT) motor vehicle safety
standards. The DOT code includes the Tire Identication
Number (TIN), an alphanumeric designator which can
also identify the tire manufacturer, production plant,
brand, and date of production.
GVWR:Gross Vehicle Weight Rating, seeLoading
Your Vehicle on page 4-44.
5-56

Traction:The friction between the tire and the road
surface. The amount of grip provided.
Tread:The portion of a tire that comes into contact
with the road.
Treadwear Indicators:Narrow bands, sometimes
called wear bars, that show across the tread of a
tire when only 1/16 inch (1.6 mm) of tread remains.
SeeWhen It Is Time for New Tires on page 5-61.
UTQGS (Uniform Tire Quality Grading Standards):
A tire information system that provides consumers with
ratings for a tire’s traction, temperature, and treadwear.
Ratings are determined by tire manufacturers using
government testing procedures. The ratings are molded
into the sidewall of the tire. SeeUniform Tire Quality
Grading on page 5-64.
Vehicle Capacity Weight:The number of designated
seating positions multiplied by 150 lbs (68 kg) plus
the rated cargo load. SeeLoading Your Vehicle on
page 4-44.
Vehicle Maximum Load on the Tire:Load on an
individual tire due to curb weight, accessory weight,
occupant weight, and cargo weight.
Vehicle Placard:A label permanently attached to a
vehicle showing the vehicle’s capacity weight and
the original equipment tire size and recommended
ination pressure. See “Tire and Loading Information
Label” underLoading Your Vehicle on page 4-44.Ination - Tire Pressure
Tires need the correct amount of air pressure to operate
effectively.
Notice:Do not let anyone tell you that
under-ination or over-ination is all right. It is not.
If your tires do not have enough air (under-ination),
you can get the following:
Too much exing
Too much heat
Tire overloading
Premature or irregular wear
Poor handling
Reduced fuel economy
If your tires have too much air (over-ination),
you can get the following:
Unusual wear
Poor handling
Rough ride
Needless damage from road hazards
5-58

Maintenance Footnotes
†The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to
the completion of the vehicle’s useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the
maintenance be recorded.
(a)Visually inspect brake lines and hoses for proper
hook-up, binding, leaks, cracks, chang, etc. Inspect
disc brake pads for wear and rotors for surface
condition. Inspect drum brake linings/shoes for wear or
cracks. Inspect other brake parts, including drums,
wheel cylinders, calipers, parking brake, etc. Check
parking brake adjustment.
(b)Visually inspect front and rear suspension and
steering system for damaged, loose, or missing parts or
signs of wear. Inspect power steering lines and hoses
for proper hook-up, binding, leaks, cracks, chang,
etc. Visually check constant velocity joints, rubber boots,
and axle seals for leaks.
(c)Visually inspect hoses and have them replaced if they
are cracked, swollen, or deteriorated. Inspect all pipes,
ttings, and clamps; replace with genuine GM parts as
needed. To help ensure proper operation, a pressure testof the cooling system and pressure cap and cleaning the
outside of the radiator and air conditioning condenser is
recommended at least once a year.
(d)Visually inspect wiper blades for wear or cracking.
Replace wiper blades that appear worn or damaged
or that streak or miss areas of the windshield.
(e)Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors, and anchorages
are working properly. Look for any other loose or
damaged safety belt system parts. If you see anything
that might keep a safety belt system from doing its
job, have it repaired. Have any torn or frayed safety belts
replaced. Also look for any opened or broken airbag
coverings, and have them repaired or replaced.
The airbag system does not need regular maintenance.
(f)Lubricate all key lock cylinders, body door and
fuel door hinges, latches and locks (including glove box
and console doors), hood latch assembly, secondary
latch, pivots, spring anchor, release pawl, and any
moving seat hardware. Lubricate hood safety lever pivot
and prop rod pivot and tailgate latch bolt, handle
assembly pivot points, and hinges. More frequent
lubrication may be required when exposed to a corrosive
environment. Applying silicone grease on weatherstrips
with a clean cloth will make them last longer, seal
better, and not stick or squeak.
6-7