CHEVROLET COLORADO 2007 1.G Owners Manual

So please read the following and note how you
drive. If you have any questions on how to
keep your vehicle in good condition, see your
GM Goodwrench
®dealer.
This schedule is for vehicles that:
carry passengers and cargo within
recommended limits. You will nd these limits
on the Tire and Loading Information label.
SeeLoading Your Vehicle on page 293.
are driven on reasonable road surfaces
within legal driving limits.
are driven off-road in the recommended
manner. SeeOff-Road Driving on page 260.
use the recommended fuel. SeeGasoline
Octane on page 326.
The services inScheduled Maintenance on
page 442should be performed when indicated.
SeeAdditional Required Services on page 444
andMaintenance Footnotes on page 446for
further information.
{CAUTION:
Performing maintenance work on a
vehicle can be dangerous. In trying to do
some jobs, you can be seriously injured.
Do your own maintenance work only if
you have the required know-how and the
proper tools and equipment for the job.
If you have any doubt, see your GM
Goodwrench
®dealer to have a qualied
technician do the work. SeeDoing Your
Own Service Work on page 325.
Some maintenance services can be complex.
So, unless you are technically qualied and have
the necessary equipment, you should have
your GM Goodwrench
®dealer do these jobs.
When you go to your GM Goodwrench
®dealer
for your service needs, you will know that
GM-trained and supported service technicians
will perform the work using genuine GM parts.
441

If you want to purchase service information,
seeService Publications Ordering Information
on page 476.
Owner Checks and Services on page 447tells
you what should be checked, when to check it,
and what you can easily do to help keep your
vehicle in good condition.
The proper replacement parts, uids, and
lubricants to use are listed inRecommended
Fluids and Lubricants on page 452andNormal
Maintenance Replacement Parts on page 454.
When your vehicle is serviced, make sure these
are used. All parts should be replaced and all
necessary repairs done before you or anyone
else drives the vehicle. We recommend the
use of genuine GM parts.Scheduled Maintenance
When the CHANGE OIL message comes on, it
means that service is required for your vehicle.
SeeDIC Warnings and Messages on page 202.
Have your vehicle serviced as soon as possible
within the next 600 miles (1 000 km). It is possible
that, if you are driving under the best conditions,
the engine oil life system may not indicate
that vehicle service is necessary for over a year.
However, your engine oil and lter must be
changed at least once a year and at this time
the system must be reset. Your dealer/retailer has
trained service technicians who will perform this
work using genuine parts and reset the system.
If the engine oil life system is ever reset
accidentally, you must service your vehicle within
3,000 miles (5 000 km) since your last service.
Remember to reset the oil life system whenever
the oil is changed. SeeEngine Oil Life System
on page 336for information on the Engine Oil
Life System and resetting the system.
442

When the CHANGE OIL message appears,
certain services, checks, and inspections are
required. Required services are described in the
following for “MaintenanceI” and “MaintenanceII.”
Generally, it is recommended that your rst
service be MaintenanceI, your second service
be MaintenanceII, and that you alternate
MaintenanceIand MaintenanceIIthereafter.
However, in some cases, MaintenanceIImay
be required more often.MaintenanceI— Use MaintenanceIif the
CHANGE OIL message comes on within
10 months since the vehicle was purchased
or MaintenanceIIwas performed.
MaintenanceII— Use MaintenanceIIif the
previous service performed was MaintenanceI.
Always use MaintenanceIIwhenever the
message comes on 10 months or more since
the last service or if the message has not
come on at all for one year.
Scheduled Maintenance
Service MaintenanceIMaintenanceII
Change engine oil and lter. SeeEngine Oil on page 333. Reset oil life system.
SeeEngine Oil Life System on page 336.An Emission Control Service.••
Visually check for any leaks or damage.See footnote (g).••
Inspect engine air cleaner lter. If necessary, replace lter. SeeEngine
Air Cleaner/Filter on page 338.See footnote (j).•
Rotate tires and check ination pressures and wear. SeeTire Inspection
and Rotation on page 390and “Tire Wear Inspection” inAt Least Once
a Month on page 448.••
Inspect brake system.See footnote (a).••
Check engine coolant and windshield washer uid levels and add uid
as needed.••
443

Scheduled Maintenance (cont’d)
Service MaintenanceIMaintenanceII
Perform any needed additional services. See “Additional Required Services”
in this section.••
Inspect suspension and steering components.See footnote (b).•
Inspect engine cooling system.See footnote (c).•
Inspect wiper blades.See footnote (d).•
Inspect restraint system components.See footnote (e).•
Lubricate body components.See footnote (f).•
Check transmission and transfer case uid levels and add uid as needed.•
Additional Required Services
The following services should be performed at the rst maintenance service (IorII) after the indicated miles
(kilometers) shown for each item.
Additional Required Services
Service and Miles (Kilometers)25,000
(40 000)50,000
(80 000)75,000
(120 000)100,000
(160 000)125,000
(200 000)150,000
(240 000)
Inspect fuel system for damage
or leaks.• •••••
Inspect exhaust system for loose
or damaged components.• •••••
444

Additional Required Services (cont’d)
Service and Miles (Kilometers)25,000
(40 000)50,000
(80 000)75,000
(120 000)100,000
(160 000)125,000
(200 000)150,000
(240 000)
Replace engine air cleaner lter.
SeeEngine Air Cleaner/Filter
on page 338.•••
Change automatic transmission
uid and lter (severe service).
See footnote (h).•••
Change automatic transmission
uid and lter (normal service).•
Replace spark plugs.
An Emission Control Service.•
Engine cooling system service (or every
ve years, whichever occurs rst).
An Emission Control Service.
See footnote (i).•
Inspect engine accessory drive belt.
An Emission Control Service.
See footnote (k).•
445

Maintenance Footnotes
(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 parts as needed. To help ensure
proper operation, a pressure test of 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)Inspect wiper blades for wear, cracking,
or contamination. Clean the windshield and wiper
blades, if contaminated. Replace wiper blades
that are worn or damaged. See Windshield
Wiper Blade Replacement on page 375and
Windshield and Wiper Blades on page 427for
more information.
(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.
446

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.
(g)A uid loss in any vehicle system could indicate
a problem. Have the system inspected and
repaired and the uid level checked. Add uid
if needed.
(h)Change automatic transmission uid and
lter if the vehicle is mainly driven under one or
more of these conditions:
In heavy city traffic where the outside
temperature regularly reaches 90°F (32°C)
or higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police,
or delivery service.(i)Drain, ush, and rell cooling system. This
service can be complex; you should have
your dealer/retailer perform this service. See
Engine Coolant on page 345 for what to use.
Inspect hoses. Clean radiator, condenser,
pressure cap, and ller neck. Pressure test the
cooling system and pressure cap.
(j)If you drive regularly under dusty conditions,
inspect the lter at each engine oil change.
(k)Visually inspect belt for fraying, excessive
cracks, or obvious damage. Replace belt if
necessary.
Owner Checks and Services
These owner checks and services should be
performed at the intervals specied to help
ensure the safety, dependability, and emission
control performance of your vehicle. Your
GM Goodwrench
®dealer can assist you with
these checks and services.
Be sure any necessary repairs are completed
at once. Whenever any uids or lubricants
are added to your vehicle, make sure they are
the proper ones, as shown inRecommended
Fluids and Lubricants on page 452.
447

At Each Fuel Fill
It is important to perform these underhood
checks at each fuel ll.
Engine Oil Level Check
Check the engine oil level and add the proper
oil if necessary. SeeEngine Oil on page 333for
further details.
Notice:It is important to check the engine
oil regularly and keep it at the proper
level. Failure to keep the engine oil at
the proper level can cause damage to the
engine not covered by your warranty.
Engine Coolant Level Check
Check the engine coolant level and add
DEX-COOL®coolant mixture if necessary.
SeeEngine Coolant on page 345for
further details.
Windshield Washer Fluid Level Check
Check the windshield washer uid level in
the windshield washer uid reservoir and
add the proper uid if necessary.
At Least Once a Month
Tire Ination Check
Inspect your vehicle’s tires and make sure they
are inated to the correct pressures. Do not
forget to check the spare tire. SeeInation - Tire
Pressure on page 384. Check to make sure
the spare tire is stored securely. SeeChanging
a Flat Tire on page 400.
Tire Wear Inspection
Tire rotation may be required for high mileage
highway drivers prior to the Engine Oil Life
System service notication. Check the tires for
wear and, if necessary, rotate the tires. See
Tire Inspection and Rotation on page 390.
448

At Least Once a Year
Starter Switch Check
{CAUTION:
When you are doing this inspection, the
vehicle could move suddenly. If the vehicle
moves, you or others could be injured.
1. Before you start, be sure you have enough
room around the vehicle.
2. Firmly apply both the parking brake and the
regular brake. SeeParking Brake on page 133.
Do not use the accelerator pedal, and be ready
to turn off the engine immediately if it starts.3. On automatic transmission vehicles, try to start
the engine in each gear. The vehicle should
start only in PARK (P) or NEUTRAL (N). If the
vehicle starts in any other position, contact
your dealer/retailer for service.
On manual transmission vehicles, put the shift
lever in NEUTRAL, push the clutch pedal down
halfway, and try to start the engine. The vehicle
should start only when the clutch pedal is
pushed down all the way to the oor. If the
vehicle starts when the clutch pedal is not
pushed all the way down, contact your dealer/
retailer for service.
449

Automatic Transmission Shift Lock
Control System Check
{CAUTION:
When you are doing this inspection, the
vehicle could move suddenly. If the vehicle
moves, you or others could be injured.
1. Before you start, be sure you have enough
room around the vehicle. It should be parked
on a level surface.
2. Firmly apply the parking brake. SeeParking
Brake on page 133.
Be ready to apply the regular brake
immediately if the vehicle begins to move.3. With the engine off, turn the ignition to ON, but
do not start the engine. Without applying the
regular brake, try to move the shift lever out of
PARK (P) with normal effort. If the shift lever
moves out of PARK (P), contact your dealer/
retailer for service.Ignition Transmission Lock Check
While parked, and with the parking brake set,
try to turn the ignition to LOCK in each shift lever
position.
With an automatic transmission, the ignition
should turn to LOCK only when the shift
lever is in PARK (P). The ignition key should
come out only in LOCK.
With a manual transmission, the ignition key
should come out only in LOCK.
Contact your dealer/retailer if service is required.
450