Page 47 of 60

Black plate (17,1)Chevrolet Tahoe Police and Special Service Packages - 2012
Special Equipment Options 15-17
8. Attach the harness assemblyfrom the package to the
accessory. Cover with the
supplied conduit for added
protection. Connect the orange
wire to the accessory hot
terminal and the black wire to
the ground.
9. Complete the connection from the roof harness to the extension
harness. Cover the mated
connector with the supplied
foam. Push the foam covered
connection and excess wire
through the roof panel hole.
10. Reinstall the overhead console access panel/lamp lenses. Restoring Power
The auxiliary lamp switch is located
on the overhead console.
This switch includes wiring
provisions for a dealer or a qualified
service center to install an auxiliary
roof lamp. When the wiring is
connected to an auxiliary roof
mounted lamp, pressing the bottom
of the switch will activate the lamp and illuminate an indicator light at
the bottom of the switch. Pressing
the top of the switch again will turn
off the roof mounted lamp and
indicator.
1. Be sure that the auxiliary lamp
switch is off.
2. Vacate the vehicle and reconnect the battery cable.
3. Turn the auxiliary lamp switch on. The accessory should now
be working. If it is not working,
check the connections.
4. After ensuring that the accessory is working properly,
install the grommet in the hole.
Seal with silicone sealer to
prevent water leakage.
Notice: Overloading the vehicle's
electrical system may damage
your vehicle's accessories. Do
not overload the vehicle's system
by having unnecessary
accessories on at the same time.
Page 48 of 60
Black plate (18,1)Chevrolet Tahoe Police and Special Service Packages - 2012
15-18 Special Equipment Options
Option B
A. Black Wire
B. Orange Wire
C. To Roof Mounted Lamp
D. Harness Assembly
E. Grommet (Roof)
F. Foam Insulator (Adhesive‐Backed)
G. Harness Connector, Secondary Lock and Terminal
H. Dark Green and Black Wires
I. Vehicle Outer Roof Panel
Page 50 of 60
Black plate (20,1)Chevrolet Tahoe Police and Special Service Packages - 2012
15-20 Special Equipment Options
Maintenance
The emergency roof light circuit is
fed from the fuse labeled Sunroof
located in the underhood electrical
center. Always replace the fuse with
a 30 amp mini-fuse.
Wiring Provisions
for Horn/Siren
Circuit - SEO 6J4
This provision permits customer
connection of a switch to select
either horn or siren operation when
the horn pad is pressed.A 0.35 mm² (22 gauge) wire is
connected to an in-line connector in
the horn circuit of the instrument
panel harness under the instrument
panel. The end of this harness
extension is in a 1.5 m (5 ft) loop of
wire coiled under the center of the
instrument panel.
Page 60 of 60
Black plate (4,1)Chevrolet Tahoe Police and Special Service Packages - 2012
i-4 INDEX
T
TiresPressure Monitor System . . . . . 10-1
Towing Trailer . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
Trailer Towing . . . . . . . . . . . . . . . . . . 9-5
U
Using This Supplement . . . . . . . . . . . iii
V
Vehicle Canadian Owners . . . . . . . . . . . . . . . ii
Load Limits . . . . . . . . . . . . . . . . . . . . 9-1
W
WindowsInactive RearDoor - SEO 6N5 . . . . . . . . . . 15-14
Wiring Provisions 12-Volt Battery PowerSupply . . . . . . . . . . . . . . . . . . . . . . 15-2
Emergency Vehicle Roof Light - SEO TRW . . . . . . . . . 15-15
Front Speakers - SEO WX7 . . . . . 15-24
Horn/Siren Circuit - SEO 6J4 . . . . . . . . . 15-20
Vehicle Grille Lamps, Flasher, and Speaker/
Siren - SEO 6J3 . . . . . . . . . . . 15-22