2005 GMC SAFARI check engine

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 2-23if necessary.
Be ready to apply the regular brake immediately if
the vehicle begins to move.3. With the engine off, turn the ignition to RUN, 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), your vehicle needs 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.
The ignition should turn to LOCK only when the
shift lever is in PARK (P).
The key should come out only in LOCK.
6-26

Parking Brake and Automatic
Transmission Park (P)
Mechanism Check
{CAUTION:
When you are doing this check, your vehicle
could begin to move. You or others could be
injured and property could be damaged. Make
sure there is room in front of your vehicle in
case it begins to roll. Be ready to apply the
regular brake at once should the vehicle begin
to move.Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular brake, set the
parking brake.
To check the parking brake’s holding ability: With
the engine running and transmission in
NEUTRAL (N), slowly remove foot pressure from
the regular brake pedal. Do this until the vehicle is
held by the parking brake only.
To check the PARK (P) mechanism’s holding
ability: With the engine running, shift to PARK (P).
Then release the parking brake followed by the
regular brake.
Underbody Flushing Service
At least every spring, use plain water to ush any
corrosive materials from the underbody. Take care to
clean thoroughly any areas where mud and other debris
can collect.
6-27

Throttle System Inspection
Inspect the throttle system for interference or binding,
and for damaged or missing parts. Replace parts
as needed. Replace any components that have high
effort or excessive wear. Do not lubricate accelerator
and cruise control cables.
Transfer Case and Front Axle
(All-Wheel Drive) Inspection
Every 12 months, or at engine oil change intervals,
check front axle and transfer case and add lubricant
when necessary. A uid loss could indicate a problem.
Check and have it repaired, if needed. Check vent
hose at transfer case for kinks and proper installation.
Brake System Inspection
Inspect the complete system. 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 other brake parts,
including calipers, parking brake, etc. Check parking
brake adjustment. You may need to have your brakes
inspected more often if your driving habits or
conditions result in frequent braking.
6-29

Vehicle Data Collection and Event
Data Recorders
Your vehicle, like other modern motor vehicles, has a
number of sophisticated computer systems that monitor
and control several aspects of the vehicle’s performance.
Your vehicle uses on-board vehicle computers to monitor
emission control components to optimize fuel economy,
to monitor conditions for airbag deployment and, if so
equipped, to provide anti-lock braking and to help the
driver control the vehicle in difficult driving situations.
Some information may be stored during regular
operations to facilitate repair of detected malfunctions;
other information is stored only in a crash event by
computer systems, such as those commonly called event
data recorders (EDR).
In a crash event, computer systems, such as the Airbag
Sensing and Diagnostic Module (SDM) in your vehicle
may record information about the condition of the vehicle
and how it was operated, such as data related to
engine speed, brake application, throttle position, vehicle
speed, safety belt usage, airbag readiness, airbag
performance, and the severity of a collision. This
information has been used to improve vehicle crash
performance and may be used to improve crash
performance of future vehicles and driving safety. Unlike
the data recorders on many airplanes, these on-board
systems do not record sounds, such as conversation of
vehicle occupants.To read this information, special equipment is needed
and access to the vehicle or the device that stores
the data is required. GM will not access information
about a crash event or share it with others other than:with the consent of the vehicle owner or, if the
vehicle is leased, with the consent of the lessee,
in response to an official request of police or similar
government office,
as part of GM’s defense of litigation through the
discovery process, or
as required by law.
In addition, once GM collects or receives data, GM may:
use the data for GM research needs,
make it available for research where appropriate
condentiality is to be maintained and need is
shown, or
share summary data which is not tied to a specic
vehicle with non-GM organizations for research
purposes.
Others, such as law enforcement, may have access to
the special equipment that can read the information
if they have access to the vehicle or the device
that stores the data.
If your vehicle is equipped with OnStar
®, please check
the OnStar®subscription service agreement or manual
for information on its operations and data collection.
7-9

Charging System Light....................................3-29
Check
Engine Light...............................................3-32
Gages Warning Light...................................3-37
Checking Things Under the Hood......................5-10
Chemical Paint Spotting...................................5-92
Child Restraints
Child Restraint Systems...............................1-41
Infants and Young Children...........................1-35
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-49
Older Children.............................................1-33
Securing a Child Restraint Designed for the
LATCH System........................................1-51
Securing a Child Restraint in a Center Rear
Seat Position...........................................1-53
Securing a Child Restraint in a Rear Outside
Seat Position...........................................1-52
Securing a Child Restraint in the Right Front
Seat Position...........................................1-55
Top Strap...................................................1-45
Top Strap Anchor Location............................1-47
Where to Put the Restraint...........................1-44
Cigarette Lighter.............................................3-20Cleaning
Aluminum Wheels........................................5-90
Exterior Lamps/Lenses.................................5-89
Fabric/Carpet..............................................5-85
Finish Care.................................................5-89
Glass Surfaces............................................5-87
Instrument Panel.........................................5-87
Interior Plastic Components...........................5-87
Leather......................................................5-87
Tires..........................................................5-91
Underbody Maintenance...............................5-92
Vinyl..........................................................5-86
Washing Your Vehicle...................................5-88
Weatherstrips..............................................5-88
Windshield and Wiper Blades........................5-90
Climate Control System...................................3-21
Outlet Adjustment........................................3-23
Rear Air Conditioning System........................3-24
Rear Heating System...................................3-23
Comfort Guides, Rear Safety Belt.....................1-30
Compact Spare Tire........................................5-84
Control of a Vehicle.......................................... 4-5
Convenience Net............................................2-38
3

E
Electrical System
Add-On Equipment......................................5-94
Fuses and Circuit Breakers...........................5-95
Headlamp Wiring.........................................5-94
Instrument Panel Fuse Block.........................5-96
Power Windows and Other Power Options......5-95
Underhood Fuse Block.................................5-98
Windshield Wiper Fuses...............................5-95
Engine
Air Cleaner/Filter.........................................5-22
Battery.......................................................5-42
Check and Service Engine Soon Light............3-32
Coolant......................................................5-27
Coolant Heater............................................2-19
Coolant Temperature Gage...........................3-31
Cooling System Inspection............................6-28
Cover........................................................5-18
Engine Compartment Overview......................5-12
Exhaust.....................................................2-26
Fan Noise..................................................5-36
Fuel Regulator............................................2-19
Oil .............................................................5-14
Overheating................................................5-29
Starting......................................................2-18Entry Lighting.................................................3-18
Event Data Recorders (EDR)............................. 7-9
Exit Lighting...................................................3-18
Extender, Safety Belt.......................................1-32
Exterior Lamps...............................................3-15
F
Filter
Engine Air Cleaner......................................5-22
Finish Damage...............................................5-91
Fixed Mast Antenna........................................3-53
Flash-to-Pass................................................... 3-9
Flat Tire........................................................5-71
Flat Tire, Changing.........................................5-72
Flat Tire, Storing.............................................5-82
Fluid
Automatic Transmission................................5-24
Power Steering...........................................5-36
Windshield Washer......................................5-37
Front Axle......................................................5-49
5

Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Filling a Portable Fuel Container....................5-10
Filling Your Tank........................................... 5-8
Fuels in Foreign Countries.............................. 5-7
Gage.........................................................3-38
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-5
Low Warning Light.......................................3-38
Regulator...................................................2-19
System Inspection.......................................6-28
Fuses
Fuses and Circuit Breakers...........................5-95
Instrument Panel Fuse Block.........................5-96
Underhood Fuse Block.................................5-98
Windshield Wiper.........................................5-95
G
Gage
Check Gages Warning Light..........................3-37
Engine Coolant Temperature.........................3-31
Fuel..........................................................3-38
Oil Pressure...............................................3-35
Speedometer..............................................3-27
Voltmeter Gage...........................................3-29Garage Door Opener.......................................2-29
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-5
GM Mobility Reimbursement Program.................. 7-5
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-5
Headlamp Wiring............................................5-94
Headlamps
Automatic Headlamp System.........................3-17
Bulb Replacement.......................................5-50
Daytime Running Lamps...............................3-16
Flash-to-Pass............................................... 3-9
Front Turn Signal and Parking Lamps.............5-54
Halogen Bulbs............................................5-50
Headlamps and Sidemarker Lamps................5-50
High/Low Beam Changer................................ 3-8
On Reminder..............................................3-16
Headlamps and Sidemarker Lamps...................5-50
Heater...........................................................3-21
Highbeam On Light.........................................3-36
Highway Hypnosis...........................................4-20
Hill and Mountain Roads..................................4-20
HomeLink
®Transmitter....................................2-29
6

HomeLink®Transmitter, Programming................2-30
Hood
Checking Things Under................................5-10
Release.....................................................5-11
Horn............................................................... 3-6
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-18
I
Ignition Positions.............................................2-17
Infants and Young Children, Restraints...............1-35
Ination -- Tire Pressure..................................5-63
Inspection
Brake System.............................................6-29
Engine Cooling System................................6-28
Exhaust System..........................................6-28
Fuel System...............................................6-28
Part C - Periodic Maintenance.......................6-28
Steering, Suspension and Front Drive Axle
Boot and Seal.........................................6-28
Throttle System...........................................6-29
Transfer Case and Front Axle
(All-Wheel Drive)......................................6-29Instrument Panel
Brightness..................................................3-17
Cluster.......................................................3-26
Overview..................................................... 3-4
J
Jump Starting.................................................5-42
K
Keyless Entry System....................................... 2-3
Keys............................................................... 2-2
L
Labelling, Tire Sidewall....................................5-58
Lamps
Battery Run-Down Protection.........................3-19
Dome........................................................3-18
Exterior......................................................3-15
LATCH System
Child Restraints...........................................1-49
Securing a Child Restraint Designed for the
LATCH System........................................1-51
7