July 2009
Volume 11, No.7
Contents
Service and Parts Operations
All-New 2010 Cadillac SRX . . . . . . . . . . .1
VIN Structure Change for 2010 . . . . . . . .1
USB Control of Multimedia Systems . . . . .4
Navigation Display Squeaks . . . . . . . . . . .5
Key Sticks in Ignition . . . . . . . . . . . . . . . .5
Body Side Moldings . . . . . . . . . . . . . . . .5
Locking Lug Nut Kit . . . . . . . . . . . . . . . .5
Transmission Cooler Line Leak . . . . . . . . .5
Tire Pressure Monitor Tips . . . . . . . . . . .6
Tire Pressure Monitor Tester
Update Kit . . . . . . . . . . . . . . . . . . . . . . .6
Convertible Top Window Operation . . . . . .6
Service Trailer Brake Message . . . . . . . . .6
Out of Fuel – 1/4 Tank . . . . . . . . . . . . . .7
Inoperative Camera . . . . . . . . . . . . . . . .7
BCM Programming Tips . . . . . . . . . . . . .7
Fix It Right the First Time . . . . . . . . . . . .8
Know How Broadcasts for August . . . . . .8
The all-new 2010 Cadillac SRX midsize
crossover represents a significant departure from
its rear-drive predecessor as a more integrated
and highly styled entry. It’s based on General
Motors’ all-new global midsize front-drive
crossover architecture (also called Theta-Epsilon).
The new SRX has a dramatic presence — from
its prominent shield grille and large, center-posi-
tioned wreath and crest to the vertically oriented,
contemporary “tailfin” taillamps that incorporate
more than 40 LEDs per lamp.
Global-A Serial Data Electrical
The SRX uses the GM Global-A Serial Data
Electrical Architecture – a high-and low-speed data
network that connects system modules.
The Body Control Module (BCM) is the heart
of the electrical system, acting as a gateway
between the high-speed and low-speed data
buses.
Cadillac SRX
Techline News
VIN Structure Change for 2010
Several changes are being made to the numbering structure for VINs (Vehicle
Identification Numbers) for both trucks and cars, beginning with the 2010 model
year. See the accompanying illustrations.
The VIN structure was instituted by all vehicle makers in 1981 in compliance
with government regulatory requirements. The VIN contains standardized data
required by government and insurance agencies.
TRUCKS and MPVs
For LD trucks and multi-purpose vehicles (MPVs), beginning with 2010,
there is a new requirement for the VIN to identify the restraint system devices
and locations. Position 7 will be used for this purpose (it formerly indicated
Body Type).
TIP:
Previously, position 7 Restraint System was not common between trucks
and cars. Now, it is.
Position 4 previously indicated GVWR/Brake Systems and now indicates
GVWR/Brake Systems and Body Style.
Positions 4, 5 and 6 are now alpha-numeric and position 7 is alpha only. This
increases the number of systems that can be described with a single character.
See the accompanying illustrations on page 4.
continued on page 4
All-New
TIP:
You will use the MDI with GDS software and a laptop PC in place of the
Tech 2 for diagnosis.
Passive Entry and Passive Start Systems
The optional Passive Entry System enables operation of the doors, ignition
and liftgate without removing the transmitter from a pocket
continued on page 2
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