lock CHEVROLET TAHOE 2012 3.G Owners Manual

Black plate (1,1)Chevrolet Tahoe Police and Special Service Packages - 2012
2012 Chevrolet Tahoe Police and Special ServicePackagesM
Keys, Doors, and
Windows . . . . . . . . . . . . . . . . . . . . 2-1
Keys and Locks . . . . . . . . . . . . . . . 2-1
Seats and Restraints . . . . . . . . . 3-1
Airbag System . . . . . . . . . . . . . . . . . 3-1
Instruments and Controls . . . . 5-1
Warning Lights, Gauges, and
Indicators . . . . . . . . . . . . . . . . . . . . 5-2
Information Displays . . . . . . . . . . . 5-3
Lighting . . . . . . . . . . . . . . . . . . . . . . . 6-1
Exterior Lighting . . . . . . . . . . . . . . . 6-1
Driving and Operating . . . . . . . . 9-1
Driving Information . . . . . . . . . . . . . 9-1
Starting and Operating . . . . . . . . . 9-5
Towing . . . . . . . . . . . . . . . . . . . . . . . . . 9-5 Vehicle Care
. . . . . . . . . . . . . . . . . 10-1
Wheels and Tires . . . . . . . . . . . . . 10-1
Appearance Care . . . . . . . . . . . . . 10-2
Technical Data . . . . . . . . . . . . . . . 12-1
Vehicle Data . . . . . . . . . . . . . . . . . . 12-2
Special Equipment Options . . . . . . . . . . . . . . . . . . . . . 15-1
SEO Standard Options . . . . . . . 15-2
SEO Available Options . . . . . . 15-10
Index . . . . . . . . . . . . . . . . . . . . . i-1

Black plate (1,1)Chevrolet Tahoe Police and Special Service Packages - 2012
Keys, Doors, and Windows 2-1
Keys, Doors, and
Windows
Keys and Locks
Specific Cylinder Unit for SingleKey - Random Code
System . . . . . . . . . . . . . . . . . . . . . . 2-1
Keys and Locks
Specific Cylinder Unit for
Single Key - Random
Code System
If your vehicles are equipped with
one of these options, the entire fleet
of vehicle locks can be operated
with one key.
.SEO 6E2 - Specific Fleet
Key Code
.SEO 6E8 - Specific Fleet
Key Code
Your vehicle will be equipped with a
standard production random key
code if one of the optional fleet
codes was not ordered.
For specific key code information,
contact your dealer. Your vehicles will be equipped with
a key cylinder in the ignition lock
and the driver door only. Remote
keyless entry (RKE) is a standard
feature and operates all other doors
and the rear liftgate. Six additional
RKE transmitters may have been
ordered with your vehicle. See your
dealer for additional information
regarding availability of more RKE
units for your vehicle.
The RKE transmitter for your police
vehicle has the vehicle locator/panic
alarm button disabled. The horn will
not sound and the exterior lights will
not flash when the button is
pressed.

Black plate (2,1)Chevrolet Tahoe Police and Special Service Packages - 2012
2-2 Keys, Doors, and Windows
Remote Keyless
Entry Transmitter
Programming‐SEO
AMF - Fleet Package of
6 Unprogrammed Remote
Units
Do not operate or program the
transmitters in the vicinity of other
vehicles that are in the keyless
entry program mode. This prevents
the programming of the transmitters
to the incorrect vehicle.
Up to eight transmitters may be
programmed to the RKE on Police
and Special Service Package
equipped vehicles. The first four
transmitters are given the position of
#1-#4 in the RKE. Any further
transmitters will also be assigned to
position #4.
Verify that the proper transmitters
are learned to the vehicle. Do not
learn a transmitter with a remote
start button to a vehicle that does
not have remote start. To access this DIC display, the
vehicle must be in P (Park). To
match a remote keyless entry
transmitter to the vehicle, do the
following:
1. Press the trip odometer reset
stem until RELEARN REMOTE
KEY displays.
2. Press and hold the trip reset stem for three seconds. The
message REMOTE KEY
LEARNING ACTIVE will display.
3. At the same time, press and hold
QandKon the first
transmitter for approximately
15 seconds. A beep will sound
indicating the transmitter is
matched to the vehicle.
4. Repeat Step 3 to match up to five more transmitters. A total of
eight transmitters can be
matched per vehicle.
5. To exit the programming mode, turn the ignition key to LOCK/
OFF .

Black plate (1,1)Chevrolet Tahoe Police and Special Service Packages - 2012
Lighting 6-1
Lighting
Exterior Lighting
Exterior Lamp Controls . . . . . . . . 6-1
Exterior Lighting
Exterior Lamp Controls
The following exterior lighting
features apply to vehicles first sold
in the United States.
The vehicle has Daytime Running
Lamps (DRL) and an Automatic
Headlamp System (AHS). The DRL
and AHS can be turned to OFF with
the headlamp switch when the
transmission is in P (Park) and the
engine is at idle. If the engine is not
turned off, the DRL and AHS will
remain OFF when the transmission
is placed in gear. The vehicle may
be driven with the lamps off for one
ignition cycle.
The vehicle may have been built
with SEO 9G8, DRL AND AHS
DISABLE. This feature turns off
DRL and AHS and requires manual
control of the exterior lighting. See
your dealer to restore the DRL and
AHS to normal operation.For vehicles first sold in Canada,
the DRL and AHS can be turned off
if the transmission is in P (Park).
See the owner's manual for more
information.
Special Features
The following standard features are
disabled in the Police Package and
Special Service Package.
.Entry Lighting and Exit Lighting
.Remote Keyless Entry Feedback
(Horn Beep) and (Lamps Flash)
Automatic Door Locking is standard.
If you need it disabled, see your
dealer.

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 (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 (7,1)Chevrolet Tahoe Police and Special Service Packages - 2012
Special Equipment Options 15-7
Blunt cut ignition controlled power
and signal circuits are also included
in the wire coiled under the
instrument panel near the center of
the vehicle. They include:
.*A yellow, 0.5 mm² (20 gauge)
circuit, Hot in ACCESSORY,
RUN or RAP (Retained
Accessory Power).
.A pink, 0.5 mm² (20 gauge)
circuit, Hot in START and RUN.
(7A maximum load)
.*A yellow/black, 0.5 mm²
(20 gauge) transmission park
signal. This circuit provides
switched power when the
transmission is in P (Park) and
the engine is running. The circuit
is at 0 volts when the
transmission is in any other
position, i.e., R (Reverse),
N (Neutral), D (Drive) or
M (Manual). Note that the circuit
is also at 12 volts with the
transmission in P (Park) and the
ignition in LOCK/OFF. To avoid
the possibility of undesired
parasitic electrical load with the
ignition in LOCK/OFF it is
suggested that the Park/Signal
circuit be isolated by routing it
through the normally open
contact of a customer furnished
ignition controlled relay.
.A dark green/white, 0.5 mm²
(20 gauge) Vehicle Speed Signal
(VSS) provides 4,000 pulses
per mile.*These two circuits share a 15 amp
fuse. (10 amp combined
maximum load)
Servicing Relays and Fuses
Fuse/Relay Center

Black plate (8,1)Chevrolet Tahoe Police and Special Service Packages - 2012
15-8 Special Equipment Options
Enlarged View of the Fuse Block
A. Relays and Circuit Breakers
B. Front of the Vehicle
C. Floor of the Vehicle
D. Glove Box
E. Tab
The following information tells how
to access the vehicle's relay and
breaker center for checking and
replacing breakers. The breaker and relay center is
located behind and above the
instrument panel storage
compartment. Remove contents
from the storage tray. Using the tab
at the back of the compartment,
drop the tray down gently toward
the floor. It will hang from the hinge.
The breaker/relay center is located
above the right rear corner of the
storage compartment. The bracket
is attached to the instrument panel
structure with two screws.
Replace a 30 amp circuit breaker
with GM Part No. 12182117 circuit
breaker, or equivalent. Replace a
relay with a GM Part No. 12193604
relay, or equivalent. Replace a
50 amp circuit breaker with a GM
Part No. 15319848 circuit breaker,
or equivalent.
Reinstall the storage tray into the
compartment by lifting it into the
instrument panel.
Auxiliary Battery Power
Junction Blocks
Two auxiliary power junction blocks
are located within the driver side
rear cargo area jack stowage
compartment. Each junction block is
powered directly from the battery
through a 50 amp circuit breaker for
connection to customer‐furnished
equipment. The two circuit breakers
are located in the breaker/relay
panel forward of the instrument
panel glove box. A maximum load of
50 amps (600 watts) can be
connected to each junction block.
The wiring diagram for this circuit is
shown as part of the diagram for
“Wiring Provisions
–12 Volt Battery
Power”.

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 (12,1)Chevrolet Tahoe Police and Special Service Packages - 2012
15-12 Special Equipment Options
Headlamps
Flasher Module —SEO 6J7
A 20 amp fuse protects the flasher
module circuit. This fuse is located
in the underhood fuse block in the
engine compartment on the driver
side of the vehicle and is labelled
HEADLAMP WASHER. See “Engine
Compartment Fuse Block” in the
Vehicle Care section of the Tahoe
owner manual for more information. When it is dark outside, the
taillamps will turn on automatically.
The Center High-Mounted Stoplamp
(CHMSL) will not flash and will
operate only when the regular brake
pedal is pressed.