2002 GMC SAFARI Owner's Manual

2-72
Emissions Inspection and Maintenance Programs
Some state/provincial and local governments have
or may begin programs to inspect the emission
control equipment on your vehicle. Failure to pass
this inspection could prevent you from getting a
vehicle registration.
Here are some things you need to know in order to help
your vehicle pass an inspection:
Your vehicle will not pass this inspection if the SERVICE
ENGINE SOON or CHECK ENGINE light is on or not
working properly.
Your vehicle will not pass this inspection if the OBD
(on
-board diagnostic) system determines that critical
emission control systems have not been completely
diagnosed by the system. The vehicle would be
considered not ready for inspection. This can happen
if you have recently replaced your battery or if your
battery has run down. The diagnostic system is designed
to evaluate critical emission control systems during
normal driving. This may take several days of routine
driving. If you have done this and your vehicle still
does not pass the inspection for lack of OBD system
readiness, see your dealer or qualified service center to
prepare the vehicle for inspection.
Oil Pressure Gage
The oil pressure gage shows
the engine oil pressure in
psi (pounds per square inch)
when the engine is running.
Canadian vehicles indicate pressure in kPa (kilopascals).
Oil pressure may vary with engine speed, outside
temperature and oil viscosity, but readings above the
low pressure zone indicate the normal operating range.
A reading in the low pressure zone may be caused by a
dangerously low oil level or other problems causing low
oil pressure.

2-73
CAUTION:
Don't keep driving if the oil pressure is low. If
you do, your engine can become so hot that it
catches fire. You or others could be burned.
Check your oil as soon as possible and have your
vehicle serviced.
NOTICE:
Damage to your engine from neglected oil
problems can be costly and is not covered by
your warranty.
Security Light
This light will come on
briefly when you turn the
key to START.
The light will stay on until the engine starts. If the light
flashes, the Passlock

System has entered a tamper
mode. If the vehicle fails to start, see ªPasslockº in
the Index.
If the light comes on continuously while driving and
stays on, there may be a problem with the Passlock
System. Your vehicle will not be protected by Passlock,
and you should see your GM dealer.

2-74 Service AWD Light (If Equipped)
This light should come on
briefly when you turn on the
ignition, as a check to show
you it is working.
The SERVICE AWD light comes on to indicate that
there may be a problem with the drive system and
service is required. Malfunctions can be indicated by the
system before any problem is apparent, which may
prevent serious damage to the vehicle. This system is
also designed to assist your service technician in
correctly diagnosing a malfunction.
Tow/Haul Light
This light should come on
when the tow/haul mode has
been selected.
For more information, see ªTow/Haul Modeº in
the Index.

2-75 Check Gages Light
This light will come on
briefly when you are
starting the engine.
If the light comes on and stays on while you are driving,
check your various gages to see if they are in the
warning zones.
Fuel Gage
United States Canada
The fuel gage tells you approximately how much fuel
you have remaining when the ignition is on.
When the gage first indicates empty, you still have a
little fuel left, but you should get more fuel as soon
as possible.

2-76
Here are things some owners ask about. None of these
indicate a problem with your fuel gage:

At the gas station, the gas pump shuts off before the
gage reads full.

The fuel tank will take either a little more or a little
less fuel to fill up than the gage shows.

The gage moves a little when you turn a corner or
speed up.

The gage doesn't go back to empty when you turn
off the ignition.Low Fuel Light
The LOW FUEL light will
come on briefly when you
are starting the engine.
This light comes on when the fuel tank is low on fuel.
To turn it off, add fuel to the fuel tank. See ªFuelº in
the Index.

3-
3-1

3-2
Comfort Controls
This section tells you how to make your air system work
for you. Your comfort control system with air
conditioning uses ozone
-friendly refrigerant.
With these systems, you can control the heating,
cooling and ventilation in your vehicle. Your vehicle
also has a flow
-through ventilation system described
later in this section.
Heating System
If your vehicle does not have air conditioning, your
heater controls will look like this.Fan Knob
The fan know is located on the left of the control
panel. This control has four positions. To increase
airflow, turn the knob toward HI. To decrease airflow,
move it toward LO.
Temperature Knob
This knob is next to the fan knob. It controls the
temperature of the air flowing into your vehicle. Turn
the knob clockwise for warmer air. Turn the knob
counterclockwise for cooler air.
Function Knob
This knob is on the right of the temperature knob.
The function knob allows you to choose the direction of
air delivery.
OFF: This setting turns the system off.
(Vent): The air comes out at the vents on your
instrument panel.

3-3
(Bi-level): With this setting, the outside air comes
out both the instrument panel vents and floor ducts.
Adjust the temperature knob for warmer or cooler air.
(Floor): Most of the air comes out near the floor.
The rest comes out from the defroster vents under the
windshield and at the front side windows.
(Blend): With this setting, the outside air comes
out both the floor ducts and defroster vents. Adjust the
temperature knob for warmer or cooler air.
DEF (Defrost): This setting operates the defroster.
Most of the air comes out near the windshield, with
some going to the floor ducts and front side windows.
Heating/Air Conditioning System
(If Equipped)
If your vehicle has air conditioning, your heating/air
conditioning controls will look like this.
Fan Knob
The fan knob is located on the left of the control panel.
This knob has four positions. To increase airflow,
turn the knob toward HI. To decrease airflow, move it
toward LO.