
Vehicle Data Collection and Event
Data Records
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 or near crash
event by computer systems commonly called event data
recorders (EDR).In a crash or near 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 engine
speed, brake applications, throttle position, vehicle
speed, seat belt usage, airbag readiness, airbag
performance data, 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 SDM 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.
7-10

A
Accessory Power Outlets.................................3-21
Adding Washer Fluid.......................................5-40
Additional Program Information........................... 7-9
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment...........................5-113
Adjustable Throttle and Brake Pedal..................2-23
Adjusting the Speakers
(Balance/Fade)..................3-80, 3-84, 3-96, 3-111
After Off-Road Driving.....................................4-36
Air Bag
Passenger Status Indicator...........................3-43
Readiness Light..........................................3-43
Air Bag Systems.....................................1-72, 1-78
Adding Equipment to Your Air Bag-Equipped
Vehicle...................................................1-86
How Does an Air Bag Restrain?....................1-79
Passenger Sensing System...........................1-82
Servicing Your Air Bag-Equipped Vehicle.........1-86
What Makes an Air Bag In ate?....................1-79
What Will You See After an Air Bag
In ates?..................................................1-80
When Should an Air Bag In ate?...................1-77
Where Are the Air Bags?..............................1-75
Air Cleaner/Filter, Engine.................................5-21
Air Conditioning..............................................3-31
Airbag Sensing and Diagnostic Module (SDM).......7-10
All Overseas Locations...................................... 7-5
All-Wheel Drive...............................................5-51All-Wheel Drive with Stabilitrak
®........................2-33
AM .............................................................3-137
AM-FM Radio.................................................3-78
Antenna, Fixed Mast......................................3-139
Antenna, XM™ Satellite Radio Antenna
System.....................................................3-139
Anti-lock Brake System..................................... 4-7
Anti-Lock Brake, System Warning Light..............3-47
Appearance Care..........................................5-103
Care of Safety Belts...................................5-106
Chemical Paint Spotting..............................5-110
Cleaning the Inside of Your Vehicle..............5-104
Cleaning the Outside of Your Vehicle............5-107
Finish Damage..........................................5-109
Sheet Metal Damage..................................5-109
Underbody Maintenance.............................5-109
Vehicle Care/Appearance Materials...............5-110
Weatherstrips............................................5-106
Approaching a Hill..........................................4-28
Ashtrays........................................................3-21
Audio Output................................................3-131
Audio System(s).............................................3-77
AM-FM Radio.............................................3-78
Audio Steering Wheel Controls....................3-136
Care of Your Cassette Tape Player...............3-137
Care of Your CD and DVD Player................3-139
Care of Your CDs and DVDs.......................3-138
Chime Level Adjustment.............................3-139
Fixed Mast Antenna...................................3-139
Radio with Cassette and CD.........................3-92
1