ignition GMC SAVANA 2007 Repair Manual

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 128.
Do not use the accelerator pedal, and be ready
to turn off the engine immediately if it starts.
3. 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 GM Goodwrench
®
dealer for service.
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 128.
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), contact
your GM Goodwrench
®dealer for service.
407

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 ignition key should come out only in LOCK.
Contact your GM Goodwrench
®dealer if service is
required.
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.
Contact your GM Goodwrench
®dealer if service is
required.
Underbody Flushing Service
At least every spring, use plain water to flush any
corrosive materials from the underbody. Take
care to clean thoroughly any areas where mud and
other debris can collect.
408

Headlamps.................................................. 334
Bulb Replacement.................................... 334
Daytime Running Lamps.......................... 156
Flash-to-Pass........................................... 149
Front Turn Signal, Sidemarker and
Parking Lamps..................................... 336
Halogen Bulbs......................................... 334
High/Low Beam Changer......................... 149
On Reminder........................................... 155
Heater......................................................... 159
Highbeam On Light..................................... 185
Highway Hypnosis....................................... 251
Hill and Mountain Roads............................. 252
Hood
Checking Things Under............................ 294
Release................................................... 295
Horn............................................................ 146
How to Use This Manual................................ 4
How to Wear Safety Belts Properly............... 22
I
Ignition Positions......................................... 121
Infants and Young Children, Restraints.......... 44
Inflation - Tire Pressure............................... 348Instrument Panel
Overview.................................................. 144
Instrument Panel (I/P)
Brightness................................................ 156
Cluster..................................................... 167
J
Jump Starting.............................................. 324
K
Keyless Entry System................................. 104
Keys........................................................... 102
L
Labeling, Tire Sidewall................................. 341
Lamps
Battery Run-Down Protection................... 158
Dome....................................................... 156
Dome Lamp Override............................... 157
Exterior.................................................... 154
Reading................................................... 157
445