ECU GMC SAVANA 2011 Service Manual

Black plate (42,1)GMC Savana Owner Manual - 2011
10-42 Vehicle Care
Center High-Mounted
Stoplamp (CHMSL)
The Center High-Mounted Stoplamp
(CHMSL) is located above the rear
doors at the center of the vehicle.
To replace a bulb:
1. Remove the two screws from theCHMSL assembly.
2. Remove the CHMSL assembly. 3. Turn the bulb socket
counterclockwise one quarter
turn to remove it from the lamp
assembly.
4. Pull the old bulb straight out of the socket and push the new
bulb into the socket.
5. Turn the bulb socket clockwise one quarter turn to install it in the
lamp assembly.
6. Reinstall the CHMSL assembly and two screws.
Do not block or damage the CHMSL
when items are loaded on the roof
of the vehicle.
License Plate Lamp
To replace one of these bulbs:
A. Bulb Socket
B. License Plate Bulb Assembly
C. Screws
1. Remove the screws (C) that secure the license plate bulb
assembly (B).
2. Turn the bulb socket (A) counterclockwise and pull the
bulb straight out of the socket.

Black plate (71,1)GMC Savana Owner Manual - 2011
Vehicle Care 10-71
Tire Chains
{WARNING
Tire chains used on a vehicle
without the proper amount of
clearance can cause damage to
the brakes, suspension, or other
vehicle parts. The area damaged
by the tire chains could cause you
to lose control of the vehicle and
you or others may be injured in a
crash. To help avoid damage to
the vehicle, drive slowly, readjust,
or remove the device if it is
contacting the vehicle. Do not
spin the vehicle's tires. Follow the
manufacturer's instructions.Notice:
Use tire chains only
where legal and only when you
must. Use chains that are the
proper size for the tires. Install
them on the tires of the rear axle.
Do not use chains on the tires of
the front axle. Tighten them as
tightly as possible with the ends
securely fastened. Drive slowly
and follow the chain
manufacturer's instructions.
If you can hear the chains
contacting the vehicle, stop and
retighten them. If the contact
continues, slow down until it
stops. Driving too fast or
spinning the wheels with chains
on will damage the vehicle.
For Cutaway models with LT245/
75R16, LT225/75R16 or LT215/
85R16 size single or dual rear tires,
use Low Profile Z-Chain or SAE
Class S cables. For Cargo or Passenger models
with P245/70R17, LT225/75R16 or
LT245/75R16 size tires, use Low
Profile Z-Chain cables. SAE Class S
chains are not recommended.
If the vehicle has dual rear tires, do
not use individual tire chains. Use
tire chains that fit across both dual
tires.
If a Tire Goes Flat
It is unusual for a tire to blow out
while driving, especially if the tires
are maintained properly. If air goes
out of a tire, it is much more likely to
leak out slowly. But if there ever is a
blowout, here are a few tips about
what to expect and what to do:
If a front tire fails, the flat tire
creates a drag that pulls the vehicle
toward that side. Take your foot off
the accelerator pedal and grip the
steering wheel firmly. Steer to
maintain lane position, and then
gently brake to a stop, well off the
road, if possible.

Black plate (73,1)GMC Savana Owner Manual - 2011
Vehicle Care 10-73
When the vehicle has a flat tire (B),
use the following example as a
guide to assist in the placement of
the wheel blocks (A).
A. Wheel Block
B. Flat Tire
The following information explains
how to repair or change a tire.
Tire Changing
Removing the Spare Tire and
Tools
If you have a cargo van or a
passenger van, the equipment you
will need is located in the passenger
side rear corner of the vehicle.
Remove the retaining wing bolt and
lift it off of the mounting bracket.If you have a van with the
15‐passenger seating arrangement,
the equipment you will need is
secured on the rear floor of the
passenger side of the vehicle.
To access the equipment, remove
the retaining wing bolt and lift it out
of the mounting bracket.

Black plate (80,1)GMC Savana Owner Manual - 2011
10-80 Vehicle Care
Storing a Flat or Spare Tire
and Tools
{WARNING
Storing a jack, a tire, or other
equipment in the passenger
compartment of the vehicle could
cause injury. In a sudden stop or
collision, loose equipment could
strike someone. Store all these in
the proper place.
1. Put the tire on the ground at the rear of the vehicle with the valve
stem pointed down.
2. Pull the retaining bar through thecenter of the wheel, making sure
it is properly attached.
3. Pull the wheel toward the rear of the vehicle, keeping the cable
tight.
4. Put the chisel end of the hoist extension on an angle through
the hole in the rear door frame,
above the bumper.
5. Raise the tire fully against the underside of the vehicle.
Continue turning the wheel
wrench until the tire is secure and the cable is tight. The spare
tire hoist cannot be
overtightened.
6. Make sure the tire is stored
securely. Push, pull (A), and then
try to turn (B) the tire. If the tire
moves, use the wheel wrench to
tighten the cable.
You will hear two clicks when the
tire is up all the way.
7. Return the jacking equipment to the proper location. Secure the
items and replace the jack cover.

Black plate (90,1)GMC Savana Owner Manual - 2011
10-90 Vehicle Care
3. Firmly set the parking brake.See Parking Brake on page 9‑36
for more information.
4. Put the transmission in P (Park).
5. Secure the vehicle to the dolly following the manufacturer's
instructions.
6. Use an adequate clamping device designed for towing to
ensure that the front wheels are
locked into the straight position.
7. Turn the ignition to LOCK/OFF. If the tow vehicle will not be
started or driven for six weeks or
more, remove the battery cable
from the negative terminal (post)
of the battery to prevent the
battery from draining while
towing. Rear Towing (Rear Wheels Off the
Ground)
–All‐Wheel‐Drive
Vehicles
The vehicle was not designed to be
towed with two wheels on the
ground. To properly tow these
vehicles, they should be placed on
a platform trailer with all four wheels
off the ground. Notice:
Towing an all-wheel-drive
vehicle with all four wheels on the
ground, or even with only two of
its wheels on the ground, will
damage drivetrain components.
Do not tow an all-wheel-drive
vehicle with any of its wheels on
the ground.

Black plate (7,1)GMC Savana Owner Manual - 2011
Customer Information 13-7
Services Provided
.Emergency Fuel Delivery:
Delivery of enough fuel for the
vehicle to get to the nearest
service station.
.Lock‐Out Service:Service to
unlock the vehicle if you are
locked out. A remote unlock
may be available if you have
OnStar
®. For security reasons,
the driver must present
identification before this service
is given.
.Emergency Tow From a Public
Road or Highway: Tow to the
nearest GMC dealer for warranty
service, or if the vehicle was in a
crash and cannot be driven.
Assistance is also given when
the vehicle is stuck in the sand,
mud, or snow.
.Flat Tire Change: Service to
change a flat tire with the spare
tire. The spare tire, if equipped,
must be in good condition and
properly inflated. It is the owner's
responsibility for the repair or
replacement of the tire if it is not
covered by the warranty.
.Battery Jump Start: Service to
jump start a dead battery.
.Trip Routing Service: Detailed
maps of North America when
requested either with the most
direct route or the most scenic
route. Additional travel
information is also available.
Allow three weeks for delivery.
.Trip Interruption Benefits and
Assistance: If your trip is
interrupted due to a warranty
failure, incidental expenses may
be reimbursed during the
5 years/160 000 km (100,000 mi)
Powertrain warranty period.
Items considered are hotel,
meals, and rental car.
Services Not Included in
Roadside Assistance
.Impound towing caused by
violation of any laws.
.Legal fines.
.Mounting, dismounting,
or changing of snow tires,
chains, or other traction devices.
.Towing or services for vehicles
driven on a non-public road or
highway.
Services Specific to
Canadian‐Purchased Vehicles
.Fuel Delivery: Reimbursement
is approximately $5 Canadian.
Diesel fuel delivery may be
restricted. Propane and other
fuels are not provided through
this service.
.Lock-Out Service: Vehicle
registration is required.
.Trip Routing Service: Limit of
six requests per year.

Black plate (16,1)GMC Savana Owner Manual - 2011
13-16 Customer Information
GM will not access this data or
share it with others except: 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 by police or
similar government office; as part of
GM's defense of litigation through
the discovery process; or, as
required by law. Data that GM
collects or receives may also be
used for GM research needs or may
be made available to others for
research purposes, where a need is
shown and the data is not tied to a
specific vehicle or vehicle owner.
OnStar®
If the vehicle is equipped with an
active OnStar system, that system
may also record data in crash or
near crash‐like situations. The
OnStar Terms and Conditions
provides information on data
collection and use and is available
in the OnStar glove box kit, at
www.onstar.com (U.S.) orwww.onstar.ca (Canada), or by
pressing the
Qbutton and
speaking to an advisor.
Radio Frequency
Identification (RFID)
RFID technology is used in some
vehicles for functions such as tire
pressure monitoring and ignition
system security, as well as in
connection with conveniences such
as key fobs for remote door locking/
unlocking and starting, and
in-vehicle transmitters for garage
door openers. RFID technology in
GM vehicles does not use or record
personal information or link with any
other GM system containing
personal information.
Radio Frequency
Statement
This vehicle has systems that
operate on a radio frequency that
comply with Part 15 of the Federal
Communications Commission (FCC)
rules and with Industry Canada
Standards RSS‐210/220/310.
Operation is subject to the following
two conditions:
1. The device may not cause interference.
2. The device must accept any interference received, including
interference that may cause
undesired operation of the
device.
Changes or modifications to any of
these systems by other than an
authorized service facility could void
authorization to use this equipment.

Black plate (2,1)GMC Savana Owner Manual - 2011
i-2 INDEX
B
Battery . . . . . . . . . . . . . . . . . . . . . . . 10-31Jump Starting . . . . . . . . . . . . . . . 10-84
Load Management . . . . . . . . . . . . . 6-7
Power Protection . . . . . . . . . . . . . . 6-7
Voltage and ChargingMessages . . . . . . . . . . . . . . . . . . . 5-32
Blade Replacement, Wiper . . . 10-37
Bluetooth . . . . . . . . . . . . . . . . . . . . . . 7-23
Brake System Warning Light . . . 5-23
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 10-28 Antilock . . . . . . . . . . . . . . . . . . . . . . . 9-35
Fluid . . . . . . . . . . . . . . . . . . . . . . . . 10-29
Parking . . . . . . . . . . . . . . . . . . . . . . . 9-36
System Messages . . . . . . . . . . . . 5-32
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
Break-In, New Vehicle . . . . . . . . . 9-17
Bulb Replacement . . . . . . . . . . . . 10-43
Center High-MountedStoplamp (CHMSL) . . . . . . . 10-42
Front Turn Signal, Sidemarker, and
Parking Lamps . . . . . . . . . . . . 10-40 Bulb Replacement (cont.)
Halogen Bulbs . . . . . . . . . . . . . . 10-38
Headlamps . . . . . . . . . . . . . . . . . 10-38
License Plate Lamps . . . . . . . 10-42
Taillamps . . . . . . . . . . . . . . . . . . . 10-40
Buying New Tires . . . . . . . . . . . . . 10-66
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 5-5
California Fuel Requirements . . . . . . . . . . . 9-43
Perchlorate Materials
Requirements . . . . . . . . . . . . . . . 10-3
Warning . . . . . . . . . . . . . . . . . . . . . . 10-2
Canadian Vehicle Owners . . . . . . . . iii
Capacities and Specifications . . . . . . . . . . . . . . . . 12-2
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 9-26
Winter Driving . . . . . . . . . . . . . . . . . 9-9
Cargo Door Relocking . . . . . . . . . . 2-7
Cautions, Danger, and Warnings . . . . . . . . . . . . . . . . . . . . . . . . iv CD Player . . . . . . . . . . . . . . . . . . . . . 7-12
Center High-Mounted
Stoplamp (CHMSL) . . . . . . . . . 10-42
Chains, Tire . . . . . . . . . . . . . . . . . . 10-71
Charging System Light . . . . . . . . 5-20
Check Engine Light . . . . . . . . . . . . . . . . . . 5-20
Ignition
Transmission Lock . . . . . . . . 10-36
Child Restraints Infants and Young
Children . . . . . . . . . . . . . . . . . . . . . 3-46
Lower Anchors and Tethers for Children . . . . . . . . . 3-52
Older Children . . . . . . . . . . . . . . . . 3-44
Securing . . . . . . . . . . 3-59, 3-62, 3-65
Systems . . . . . . . . . . . . . . . . . . . . . . 3-49
Cigarette Lighter . . . . . . . . . . . . . . . . 5-9
Circuit Breakers . . . . . . . . . . . . . . 10-44
Cleaning Exterior Care . . . . . . . . . . . . . . . 10-91
Interior Care . . . . . . . . . . . . . . . . 10-95
Climate Control System Rear Heating System . . . . . . . . . . 8-3

Black plate (6,1)GMC Savana Owner Manual - 2011
i-6 INDEX
HeaterEngine . . . . . . . . . . . . . . . . . . . . . . . . 9-22
Heating and Air Conditioning . . . 8-1
High-Beam On Light . . . . . . . . . . . 5-26
Highway Hypnosis . . . . . . . . . . . . . . 9-8
Hill and Mountain Roads . . . . . . . . 9-8
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . 10-4
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
How to Wear Safety Belts Properly . . . . . . . . . . . . . . . . . . . . . . 3-12
I
Idle SystemFast . . . . . . . . . . . . . . . . . . . . . . . . . . 9-21
Ignition Positions . . . . . . . . . . . . . . 9-18
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . 10-36
Immobilizer . . . . . . . . . . . . . . . . . . . . 2-12
Infants and Young Children,
Restraints . . . . . . . . . . . . . . . . . . . . 3-46
Infotainment . . . . . . . . . . . . . . . . . . . . 7-1
Instrument Cluster . . . . . . . . . . . . . 5-11
Introduction . . . . . . . . . . . . . . . . . . . . . . . iii
J
Jump Starting . . . . . . . . . . . . . . . . . 10-84
K
Key and Lock Messages . . . . . . . 5-36
Keyless Entry Remote (RKE) System . . . . . . . . 2-3
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
L
Labeling, Tire Sidewall . . . . . . . . 10-51
Lamp Messages . . . . . . . . . . . . . . . 5-36
Lamps Daytime Running (DRL) . . . . . . . 6-3
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Exterior Controls . . . . . . . . . . . . . . . 6-1
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . . 6-2
License Plate . . . . . . . . . . . . . . . 10-42
Malfunction Indicator . . . . . . . . . 5-20
Reading . . . . . . . . . . . . . . . . . . . . . . . 6-6
Taillamps . . . . . . . . . . . . . . . . . . . 10-40
Lap-Shoulder Belt . . . . . . . . . . . . . 3-18 LATCH System
Replacing Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . 3-59
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . 3-52
Lighter, Cigarette . . . . . . . . . . . . . . . 5-9
Lighting Entry/Exit . . . . . . . . . . . . . . . . . . . . . . 6-7
Illumination Control . . . . . . . . . . . . 6-5
Lights Airbag On-Off . . . . . . . . . . . . . . . . . 5-17
Airbag Readiness . . . . . . . . . . . . . 5-16
Antilock Brake System
(ABS) Warning . . . . . . . . . . . . . . 5-24
Brake System Warning . . . . . . . 5-23
Charging System . . . . . . . . . . . . . 5-20
Cruise Control . . . . . . . . . . . . . . . . 5-26
Engine Oil Pressure . . . . . . . . . . 5-25
Flash-to-Pass . . . . . . . . . . . . . . . . . . 6-3
High-Beam On . . . . . . . . . . . . . . . . 5-26
High/Low Beam Changer . . . . . . 6-2
Safety Belt Reminders . . . . . . . . 5-16
Security . . . . . . . . . . . . . . . . . . . . . . 5-26
StabiliTrak
®Indicator . . . . . . . . . 5-24

Black plate (10,1)GMC Savana Owner Manual - 2011
i-10 INDEX
SeatsAdjustment, Front . . . . . . . . . . . . . . 3-2
Head Restraints . . . . . . . . . . . . . . . 3-2
Power Adjustment, Front . . . . . . 3-3
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Reclining Seatbacks . . . . . . . . . . . 3-3
Secondary Latch System . . . . . 10-81
Securing Child
Restraints . . . . . . . . 3-59, 3-62, 3-65
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5-26
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 2-12
Service Accessories andModifications . . . . . . . . . . . . . . . . 10-3
Doing Your Own Work . . . . . . . . 10-4
Engine Soon Light . . . . . . . . . . . . 5-20
Maintenance Records . . . . . . .11-10
Maintenance, General
Information . . . . . . . . . . . . . . . . . . 11-1
Parts Identification Label . . . . . 12-1
Publications Ordering
Information . . . . . . . . . . . . . . . . 13-12 Service (cont.)
Scheduling Appointments . . . . . 13-8
Vehicle Messages . . . . . . . . . . . . 5-38
Servicing the Airbag . . . . . . . . . . . 3-41
Shift Lock Control Function
Check, Automatic
Transmission . . . . . . . . . . . . . . . . 10-35
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 9-23
Out of Park . . . . . . . . . . . . . . . . . . . 9-25
Side Door . . . . . . . . . . . . . . . . . . . . . . 2-9
Sidemarker Bulb Replacement . . . . . . . . . . 10-40
Signals, Turn and
Lane-Change . . . . . . . . . . . . . . . . . 6-5
Sliding Door . . . . . . . . . . . . . . . . . . . 2-10
Specifications and Capacities . . . . . . . . . . . . . . . . . . . . 12-2
Speedometer . . . . . . . . . . . . . . . . . . 5-12
StabiliTrak Indicator Light . . . . . . . . . . . . . . . . 5-24
System . . . . . . . . . . . . . . . . . . . . . . . 9-37
Start Vehicle, Remote . . . . . . . . . . 2-5
Starter Switch Check . . . . . . . . . 10-35 Starting the Engine . . . . . . . . . . . . 9-20
Steering . . . . . . . . . . . . . . . . . . . . . . . . 9-4
Fluid, Power . . . . . . . . . . . . . . . . 10-26
Wheel Adjustment . . . . . . . . . . . . . 5-2
Wheel Controls . . . . . . . . . . . . . . . . 5-2
Storage Areas Front . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Stuck Vehicle . . . . . . . . . . . . . . . . . . 9-11
Sun Visors . . . . . . . . . . . . . . . . . . . . . 2-19
Swing-out Windows . . . . . . . . . . . . 2-17
Switches Airbag On-Off . . . . . . . . . . . . . . . . . 3-33
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . iv
System Infotainment . . . . . . . . . . . . . . . . . . . 7-1
Noise Control . . . . . . . . . . . . . . . 10-33
T
Taillamps . . . . . . . . . . . . . . . . . . . . . 10-40
Text Telephone (TTY) Users . . . 13-4
Theft-Deterrent Systems . . . . . . . 2-12Immobilizer . . . . . . . . . . . . . . . . . . . 2-12
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7