lock GMC SAVANA 2007 Owners Manual

10. Use the wheel wrench to tighten the nuts
firmly. Turn the wheel wrench clockwise
and in a crisscross sequence as shown.
11. Put the wheel cover or the center cap and
plastic wheel nut caps back on. Remove
any wheel blocks.
Secondary Latch System
Your vehicle has an underbody-mounted tire hoist
assembly equipped with a secondary latch
system. It is designed to stop the spare tire from
suddenly falling off the vehicle if the cable
holding the spare tire is damaged. For the
secondary latch to work, the tire must be stowed
with the valve stem pointing down.
SeeStoring a Flat or Spare Tire and Tools on
page 375for instructions on storing the spare tire
correctly.
{CAUTION:
Before beginning this procedure read all
the instructions. Failure to read and follow
the instructions could damage the hoist
assembly and you and others could get
hurt. Read and follow the instructions
listed next.
371

To release the spare tire from the secondary latch,
do the following:
{CAUTION:
Someone standing too close during the
procedure could be injured by the jack.
If the spare tire does not slide off the jack
completely, make sure no one is behind
you or on either side of you as you pull
the jack out from the under spare.1. Check under the
vehicle to see if the
cable end is visible.
If the cable is not visible, start this procedure
at Step 6.
2. Turn the wrench counterclockwise until
approximately 6 inches (15 cm) of cable
is exposed.
372

3. Connect the jack handle (C) and jack handle
extension (B) together and press the retention
clip (arrow) so it engages.
4. Attach the jack handle/jack handle extension
to the jack. With the UP mark facing you,
slide the ratchet onto the end of the jack
handle extension. The set-up should look like
the picture above.5. Place the jack under the vehicle, ahead of the
rear bumper. Position the center lift point of
the jack under the center of the spare tire and
turn the handle clockwise to raise the jack
until it lifts the secondary latch spring.
6. Keep raising the jack until the spare tire stops
moving upward and is held firmly in place.
This lets you know that the secondary
latch has released. The spare tire is now
balancing on the jack.
373

7. Lower the jack by turning the ratchet
counterclockwise. Keep lowering the jack
until the spare tire slides off the jack or
is hanging by the cable.
8. Disconnect the jack handle from the jack and
carefully remove the jack. Use one hand to
push against the spare while firmly pulling the
jack out from under the spare tire with the
other hand.
If the spare tire is hanging from the cable,
slide the ratchet onto the wheel wrench and
insert the wheel wrench into the hoist
shaft hole above the bumper. Turn the wheel
wrench counterclockwise to lower the spare
the rest of the way. Be sure the DOWN mark
on the ratchet is facing you.
9. Tilt the retainer at the end of the cable and
pull it through the wheel opening. Pull the
tire out from under the vehicle.Notice:If you drive away before the spare
tire or secondary latch system cable has been
reinstalled, you could damage your vehicle.
Always reinstall this cable before driving
your vehicle.
10. If the cable is hanging under the vehicle, turn
the wheel wrench in the hoist shaft hole in the
bumper clockwise to raise the cable back up.
Have the hoist assembly inspected as soon as
you can. You will not be able to store a spare or
flat tire using the hoist assembly until it has
been repaired or replaced.
To continue changing the flat tire, return to Step 4
ofRemoving the Flat Tire and Installing the
Spare Tire on page 365.
374

Electrical System
Add-On Electrical Equipment
Notice:Do not add anything electrical to your
vehicle unless you check with your dealer
rst. Some electrical equipment can damage
your vehicle and the damage would not
be covered by your warranty. Some add-on
electrical equipment can keep other
components from working as they should.
Your vehicle has an air bag system. Before
attempting to add anything electrical to your
vehicle, seeServicing Your Airbag-Equipped
Vehicle on page 96.
Headlamp Wiring
The headlamp wiring is protected by fuses in the
engine compartment fuse block. An electrical
overload will cause the lamps to flicker on and off,
or in some cases to remain off. If this happens,
have your headlamp wiring checked right away.
Windshield Wiper Fuses
The windshield wiper motor is protected by a
circuit breaker and a fuse. If the motor overheats
due to heavy snow, etc., the wiper will stop
until the motor cools. Although the circuit is
protected from electrical overload, overload due to
heavy snow, etc., may cause wiper linkage
damage. Always clear ice and heavy snow from
the windshield before using the windshield wipers.
If the overload is caused by some electrical
problem and not snow, etc., be sure to get it fixed.
Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected
from short circuits by a combination of fuses
and circuit breakers. This greatly reduces
the chance of fires caused by electrical problems.
Look at the silver-colored band inside the fuse.
If the band is broken or melted, replace the fuse.
Be sure you replace a bad fuse with a new
one of the identical size and rating.
387

Floor Console Fuse Block
The floor console fuse block is located under the
driver’s seat.
Fuse Usage
1 Spare
2 Outside Rear View Mirror
3 Courtesy Lamp/SEO
4 Left Rear Stop/Turn Signal
5 Cargo Locks
6 Right Rear Stop/Turn Signal
7 Driver Locks
8Stop/Center High Mounted Stop
Lamp
9 Climate Control 1
10 Climate Control
11 Brakes
12 Heated Mirror/Defogger
13 Right Rear Blower
14 Driver Turn Mirror
388

Fuse Usage
15 Door Locks
16 Upfitter Park
17 Not Available
18 Left Rear Park Lamp
19 Pass Turn Mirror
20 Right Rear Park Lamp
21 Trailer Park Lamp
22 Front Park Lamp
32 Auxiliary 1
33 Auxiliary 2Relays Usage
23 Window Retained Accessory Power
24 Auxiliary
25 Rear Window Defogger
26 Courtesy Lamp
27 Cargo Unlock
28 Driver Unlock
29 Park Lamp
30 Door Locks
31 Passenger Unlock
Circuit Breaker Usage
34 Power Window
389

Engine Compartment Fuse Block
The fuse block is located in the engine
compartment on the driver’s side of the vehicle.
Fuse Usage
1 Radio Battery
2Powertrain Control Module Battery
(Gas), FOH, Engine Control Module,
Transmission Control Module
Battery (Diesel)
Fuse Usage
3 Left Rear Turn Lamp
4 Right Rear Turn Lamp
5 Back-up Lamps Trailer Wiring
6 Ignition 0
7 Stoplamp
8 Rear Defogger/Heated Mirror
9Right Daytime Running Lamp/
Turn Signal
10Left Daytime Running Lamp/
Turn Signal
11 Truck Body Control Module 4
12 Fuel Pump
13 Trailer
14 Hazard Flashers
15 Horn
16 Truck Body Control Module 3
17 Trailer Stop/Turn Signal
390

Fuse Usage
18 Truck Body Control Module 2
19 Truck Body Control Module
20 Remote Function Actuator
21 Engine 2 (Gas), Spare (Diesel)
22 Ignition E
23 Engine 1
24Truck Body Control Module
Ignition 1
25 Spare (Gas), Fuel Heater (Diesel)
26 Inside Rearview Mirror
27 Crankcase
28Brake Transmission Shift
Interlock System
29 Auxiliary Power Outlets
30 Cigarette Lighter
31 Instrument Panel Cluster
32 Air ConditioningFuse Usage
33Spare (Gas), Engine Control
Module (Diesel)
34Canister Vent Solenoid (Gas), Rear
Fog Lamps (Diesel)
35Spare (Gas & LLY Diesel), Fan
Clutch (LMM Diesel)
36Brake Transmission Shift Interlock,
Vehicle Back-Up
37 Airbag
38Powertrain Control Module Ignition 1
(Gas), Engine Control Module,
Transmission Control Module, Glow
Plug Control Module Ignition 1
(Diesel)
39Oxygen Sensor B (Gas),
Spare (Diesel)
40Oxygen Sensor A (Gas),
Spare (Diesel)
41 Windshield Wipers
42 Right Headlamp - Low Beam
391

Fuse Usage
43 Left Headlamp - Low Beam
44 Left Headlamp - High Beam
45 Right Headlamp - High Beam
46Truck Body Controller- Accessory
(Gas), Truck Body Controller,
Transmission Control Module
Accessory (Diesel)
47 Front Windshield Wiper
48Anti-lock Brakes, Vehicle Stability
Enhancement System
49 Ignition A
50 Trailer
51 Climate Control Blower
52 Ignition B
63Spare (Gas), Engine Control Module
Actuator (Diesel)
64 SpareRelays Usage
53 Windshield Wiper
54 Air Conditioning
55Spare (Gas), Rear Fog Lamps
(Diesel)
56 Headlamp - High Beam
57 Fuel Pump
58 Headlamp - Low Beam
59 Horn
SPARE (G),
ECM (D)Spare (Gas), Engine Control
Module (Diesel)
STRTR Starter
Circuit Breaker Usage
PWR SEAT Power Seat
392