2012 CHEVROLET TAHOE radio

Black plate (1,1)Chevrolet Tahoe Police and Special Service Packages - 2012
Seats and Restraints 3-1
Seats and
Restraints
Airbag System
Questions and Answers AboutAirbags and Specialty Law
Enforcement Vehicles . . . . . . . 3-1
Notices for Customer Installed Equipment . . . . . . . . . . . . . . . . . . . 3-3
Airbag Deployment Diagrams . . . . . . . . . . . . . . . . . . . . 3-4
Airbag System
Questions and Answers
About Airbags and
Specialty Law
Enforcement Vehicles
Q: Can equipment such as radar
devices, video cameras, and
radio trees be mounted in a
specialty vehicle equipped
with a right front passenger
frontal airbag?
A: Yes, but care must be taken to
properly mount the equipment
outside of the airbag
“deployment zone.”
Q: What is the airbag “deployment zone”?
A: The term “deployment zone”
describes the space an airbag
takes up when fully inflated.
Airbags need room to work
properly, and anything in the
“deployment zone” — suchas improperly mounted
equipment
—can greatly affect
the performance of the airbag.
{WARNING
Airbags inflate with great force,
faster than the blink of an eye. No
objects, such as shotguns, should
be placed over or near the airbag
covers. Equipment mounted too
close to an inflating airbag could
break and become a dangerous
projectile in a crash, causing
injury to the vehicle's occupants.
Also, an object too close to an
inflating airbag could prevent the
airbag from operating properly.
If this ever happens, the airbag
would not be able to protect
occupants the way it was
designed to. To help prevent
injury and to allow the airbag to
perform as it was designed, do
not mount equipment inside the
airbag deployment zone.

Black plate (3,1)Chevrolet Tahoe Police and Special Service Packages - 2012
Seats and Restraints 3-3
Notices for Customer
Installed Equipment
Read the following notices before
installing equipment on your
specialty vehicle.
Notice:GM-approved service
procedures must be followed to
remove and reinstall the
instrument panel to the pad in
order to ensure proper airbag
deployment. Notice:
Do not mount equipment
on the passenger side of the
instrument panel top pad
deployment zone. Equipment
should not be mounted on or
around the passenger airbag
opening because of a deploying
airbag. To allow the airbag to
perform as it was designed, do
not mount equipment inside the
airbag deployment zone.
Notice: The police vehicle has
roof-rail airbags. Do not mount a
security barrier such that the
ends of the barrier or brackets
are within the roof-rail
deployment zones. Notice:
The police vehicle has
roof-rail airbags and a rollover
sensor. The rollover sensor is
mounted on the centerline of the
vehicle between the driver and
right front passenger positions.
If the vehicle has bucket seats,
the rollover sensor will be
exposed. Do not mount
equipment within 25 mm (1 in) of
the rollover sensor. This may
affect the performance of the
airbag system. To allow the
airbags to perform as they are
designed, do not mount
equipment near this area.
Notice: Avoid installing wiring for
roof-rail emergency lighting or
radio antennas that may restrict
the proper deployment of the
roof-rail airbags.

Black plate (2,1)Chevrolet Tahoe Police and Special Service Packages - 2012
9-2 Driving and Operating
The following guidelines can help
you with proper loading and load
distribution when installing
additional equipment on the Tahoe
Police Package.
{WARNING
Do not load the vehicle any
heavier than the Gross
Vehicle Weight Rating
(GVWR), or either the
maximum front or rear Gross
Axle Weight Rating (GAWR).
This can cause systems to
break and change the way the
vehicle handles. This could
cause loss of control and a
crash. Overloading can also
shorten the life of the vehicle. Adding Equipment to Your
Vehicle
Before adding accessories or
equipment to your police vehicle,
there are some things you need
to know:
.The police vehicle's maximum
capacity weight.
.The weight of your police
vehicle, including a full tank of
fuel but without a driver and
passengers.
.The weight of items you plan on
adding to your police vehicle,
like roof mounted light bar(s),
push bumpers, security
barrier(s), rear storage
organizer, highway flares, fire
extinguishers, weapons,
ammunition, radios, and video
equipment.
.The weight and number of
passengers you intend to carry
in your vehicle.
.The total weight of any
additional cargo you intend to
carry in your vehicle.
When planning your vehicle
equipment installation remember not
to exceed the Gross Vehicle Weight
Rating (GVWR) or the Gross Axle
Weight Rating (GAWR) of the front
or rear axles. To keep the available
load weight less than the vehicle
capacity weight, you may need to
limit the number of passengers you
carry in your vehicle or change your
choice of additional equipment.

Black plate (1,1)Chevrolet Tahoe Police and Special Service Packages - 2012
Special Equipment Options 15-1
Special Equipment
Options
SEO Standard Options
SEO StandardOptions - Police Package
and Special Service
Package . . . . . . . . . . . . . . . . . . . 15-2
Wiring Provisions for 12-Volt Battery Power Supply . . . . . . 15-2
Auxiliary Battery Power Junction Blocks . . . . . . . . . . . . 15-8
Equipment Grounding Studs - Rear
Compartment . . . . . . . . . . . . . 15-10
Radio Suppression Grounding Straps . . . . . . . . . 15-10
SEO Available Options
Dual BatterySystem - SEO 6A6 . . . . . . . . 15-10
Exterior Lamp Emergency Flashing
System - SEO 6J7 . . . . . . . . 15-11
Inactive Rear Door Handles - SEO 6B2 . . . . . . . 15-14
Inactive Rear Door Locks - SEO 6N6 . . . . . . . . . 15-14
Inactive Rear Door Windows - SEO 6N5 . . . . . . 15-14
Spotlamp - SEO 7X6 . . . . . . . 15-14
Spotlamps - SEO 7X7 . . . . . . 15-14 Wiring Provisions for
Emergency Vehicle Roof
Light - SEO TRW . . . . . . . . . 15-15
Wiring Provisions for Horn/ Siren Circuit - SEO 6J4 . . . 15-20
Wiring Provisions for Vehicle Grille Lamps, Flasher, and
Speaker/
Siren - SEO 6J3 . . . . . . . . . . 15-22
Wiring Provisions Front Speakers - SEO WX7 . . . . . 15-24

Black plate (5,1)Chevrolet Tahoe Police and Special Service Packages - 2012
Special Equipment Options 15-5
The vehicle is equipped with wiring
provisions for a 12-volt battery
power supply. Refer to the following
information when adding electrical
accessories that will use the 12-volt
power supply feeds connected to
the vehicle's electrical system. The
wiring harness is located below the
instrument panel near the center of
the vehicle. The following
information describes the breaker
and relay location and provides a
wiring diagram to aid in connecting
customer equipment.
Electrical Connections
Notice:Before modifying or
adding any wiring, be sure that it
will work properly with your
vehicle's wiring system. Because
there are so many modifications
that can be made for many
different bodies and accessories,
GM cannot take responsibility for
any changes made. Such
changes may not be covered by
your GM Warranty. Have the work
done by an experienced electrical
technician. All wiring must be properly
protected by fuses, etc. and must
be routed properly so that it will
not be cut, pinched or rubbed by
other parts of the vehicle. Do not
route wiring in areas where it will
be very hot. Be sure not to
overload the vehicle's wiring,
connectors and components. All
added wire must be at least the
same size as the wire being
attached to for proper fuse
protection.
Installation Instructions
–12‐Volt
Accessory Power Supply
1. Disconnect the negative (−)
battery cable at the battery. The
negative (−) battery cable must
be disconnected before the
positive wiring lead is connected
to the power accessory.
2. Locate the power supply harnesses, one under the
instrument panel near the center
of the vehicle, and one within the
driver side rear cargo area jack
stowage compartment. 3. Prepare the wires that are to be
used to connect the power
accessory. Do not remove the
unused wires. Tape unused
wires back in their original
position under the instrument
panel.
4. Complete the wiring installation of the customer added
accessory with additional wire
required for the specific
electrical accessory power
connection. The wire gauge,
3.0 mm² (12 gauge), should be
the same as the wiring of the
installed harness.
5. The ignition must be turned to OFF prior to attaching the cables
to the battery, or serious damage
to the Body Control Module
(BCM) may result.
The windshield wiper switch and
the radio must be turned off
before attaching cables to the
battery.

Black plate (6,1)Chevrolet Tahoe Police and Special Service Packages - 2012
15-6 Special Equipment Options
6. Reconnect the negative (−)battery cable to the battery.
Torque the bolt to 5 Y
(3.6 lb ft).
7. Reset the clock time and radio pushbuttons as desired.
The 12‐volt battery power is
supplied through two underhood
mega fuses, one 125 amp and one
60 amp. This underhood power is
fed to the breaker/relay center via a
harness that passes through the
driver side front of the dash, and
routes across the instrument panel
to a position forward of the glove
box. The breaker/relay center is
mounted to the instrument panel
structure forward of the glove box.
The center includes a plastic
bracket, two relays, two 30 amp
breakers and three 50 amp mega
circuit breakers. Two 30 amp breakers supply power
from the underhood 60 amp mega
fuse through the contacts of the
control relays to 3.0 mm² (12 gauge)
blunt cut wires. These two blunt cut
leads are part of wire coil under the
instrument panel near the center of
the vehicle.
Each relay is operated by a 0.5 mm²
(20 gauge) blunt cut, light or dark
blue control lead included in the
122 cm (4 ft) loop of wire coiled
under the instrument panel.
Three 50 amp mega circuit
breakers, protected by three fusible
links, supply power directly from the
underhood 125 amp mega fuse
through three, 5.0 mm² (10 gauge)
wires. Two of the wires are routed
through the body harness to buss
junction blocks in the left rear of the
cargo area and secured near the
jack and tools. This 122 cm (4 ft) of
coiled wires can be accessed by
removing the cup holder on the top
of the trim panel. The third 5 mm²
(10 gauge) wire is a blunt cut lead
which is part of the 122 cm (4 ft)
loop of wire coiled under the
instrument panel near the center of
the vehicle.
An 8 mm² (8 gauge) ground lead is
also provided, and it is located
under the front passenger sill plate.
It can be accessed by removing the
sill plate and pulling the loop of wire
at the front of the plate. The lead is
122 cm (4 ft) long.

Black plate (9,1)Chevrolet Tahoe Police and Special Service Packages - 2012
Special Equipment Options 15-9
The two junction blocks are
connected to coiled 1.5 m (5 ft)
branches of the rear body harness
and fastened near the jack.
Mounting of the junction blocks can
be at customer‐selected rear cargo
area locations permitted by the
branch harness length and using
customer‐furnished mounting
hardware.
The junction blocks should not be
attached to the interior trim plastic
components without appropriate
backing hardware to the mounting
bolts.
To connect the customer-furnished
equipment at the junction blocks,
use the following steps:
1. Disconnect the negative (−)battery cable.
2. Connect the customer-furnished equipment positive leads to the
junction block terminals and
tighten to 15 N·m (11 lb ft).
The ignition must be turned off
and the vehicle vacated prior to
connecting the negative (−)
battery cable to the battery. 3. Reconnect the negative (−)
battery cable to the battery.
Torque the bolt to 5 Y
(3.6 lb ft).
4. Set the time on the clock and radio pushbuttons as needed.
See “Introduction” in the
Infotainment section of the
owner manual for more
information.

Black plate (10,1)Chevrolet Tahoe Police and Special Service Packages - 2012
15-10 Special Equipment Options
Equipment Grounding
Studs - Rear
Compartment
Your Tahoe Police and Special
Service Package has grounding
studs located at the lower driver
side and passenger side rear
compartment liftgate opening for
connection to customer electrical
equipment. A 1.52 m (5 ft) blunt cut
length of #8 awg copper wire is
coiled inside the jack storage
compartment to permit grounding of
electrical equipment that may bemounted forward in the rear
compartment and behind the
second row seatback.
Radio Suppression
Grounding Straps
Your Tahoe Police Package and
Special Service Package are
equipped with additional grounding
straps in the following locations:
.Driver side front frame body
mount bracket to underbody
.Driver side rear frame body
mount bracket to rear underbody
.Passenger side rear frame body
mount bracket to rear underbody
.Passenger side center frame
body mount bracket to center
underbody
.Exhaust pipe hanger rod to rear
frame
SEO Available
Options
Dual Battery
System - SEO 6A6
This vehicle may have a dual
battery system. The two batteries
are connected so that both supply
battery power to the vehicle at the
same time
—they are connected in
parallel. See “Battery”in the owner
manual for additional information on
batteries.