2012 CHEVROLET SUBURBAN key

Black plate (68,1)Chevrolet Tahoe/Suburban Owner Manual - 2012
10-68 Vehicle Care
To access the spare tire, refer to the
following graphics and instructions:
A. Hoist Assembly
B. Hoist Shaft
C. Hoist Shaft Access Cover/Hole
D. Jack Handle Extensions
E. Wheel Wrench
F. Hoist Cable
G. Tire/Wheel Retainer
H. Spare Tire (Valve StemPointed Down)
I. Hoist Shaft Access Hole J. Hoist End of Extension Tool
K. Spare Tire Lock
1. Open the hoist shaft access
door (C) on the bumper to
access the spare tire lock (K).
2. To remove the spare tire lock, insert the ignition key, turn it
clockwise and then pull it
straight out.
3. Assemble the two jack handleextensions (D) and wheel
wrench (E), as shown.
4. Insert the open end of theextension (J) through the hole in
the rear bumper (I) (hoist shaft
access hole).
Be sure the hoist end (J) of the
extension connects to the hoist
shaft. The ribbed square end of
the extension is used to lower
the spare tire.
5. Turn the wheel wrench counterclockwise to lower
the spare tire to the ground.
Continue to turn the wheel
wrench until the spare tire can
be pulled out from under the
vehicle.

Black plate (89,1)Chevrolet Tahoe/Suburban Owner Manual - 2012
Vehicle Care 10-89
2. Turn the engine off and firmly setthe parking brake.
3. Securely attach the vehicle being towed to the tow vehicle.
{WARNING
Shifting a four-wheel-drive
vehicle's transfer case into
N (Neutral) can cause the vehicle
to roll even if the transmission is
in P (Park). The driver or others
could be injured. Make sure the
parking brake is firmly set before
the transfer case is shifted to
N (Neutral). 4. Shift the transfer case
to N (Neutral). See See
Four-Wheel Drive (Two Speed
Automatic Transfer Case) on
page 9‑36 orFour-Wheel Drive
(Single Speed Automatic
Transfer Case) on page 9‑41.
5. Release the parking brake only after the vehicle being towed is
firmly attached to the towing
vehicle.
6. Turn the ignition to LOCK/OFF and remove the key —the
steering wheel will still turn. After towing, see
“Shifting Out of
Neutral” underFour-Wheel Drive
(Two Speed Automatic Transfer
Case) on page 9‑36 orFour-Wheel
Drive (Single Speed Automatic
Transfer Case) on page 9‑41 for the
proper procedure to take the vehicle
out of the Neutral position.

Black plate (95,1)Chevrolet Tahoe/Suburban Owner Manual - 2012
Vehicle Care 10-95
Notice:Chrome wheels and other
chrome trim may be damaged if
the vehicle is not washed after
driving on roads that have been
sprayed with magnesium,
calcium, or sodium chloride.
These chlorides are used on
roads for conditions such as
ice and dust. Always wash the
chrome with soap and water after
exposure.
Notice: To avoid surface damage,
do not use strong soaps,
chemicals, abrasive polishes,
cleaners, brushes, or cleaners
that contain acid on aluminum or
chrome-plated wheels. Use only
approved cleaners. Also, never
drive a vehicle with aluminum or
chrome-plated wheels through an
automatic car wash that uses
silicone carbide tire cleaning
brushes. Damage could occur
and the repairs would not be
covered by the vehicle warranty.Steering, Suspension, and
Chassis Components
Visually inspect front and rear
suspension and steering system for
damaged, loose, or missing parts
or signs of wear. Inspect power
steering lines and hoses for proper
hook-up, binding, leaks, cracks,
chafing, etc. Visually check constant
velocity joints, rubber boots, and
axle seals for leaks.
Body Component Lubrication
Lubricate all key lock cylinders,
hood hinges, liftgate hinges, and
steel fuel door hinge unless the
components are plastic. Applying
silicone grease on weatherstrips
with a clean cloth will make them
last longer, seal better, and not stick
or squeak.
Underbody Maintenance
Use plain water to flush dirt and
debris from the vehicle's underbody.
Your dealer or an underbody car
washing system can do this. If not
removed, rust and corrosion can
develop.
Sheet Metal Damage
If the vehicle is damaged and
requires sheet metal repair or
replacement, make sure the body
repair shop applies anti-corrosion
material to parts repaired or
replaced to restore corrosion
protection.
Original manufacturer replacement
parts will provide the corrosion
protection while maintaining the
vehicle warranty.

Black plate (12,1)Chevrolet Tahoe/Suburban Owner Manual - 2012
11-12 Service and Maintenance
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
Fluids and lubricants identified below by name, part number, or specification can be obtained from your dealer.Usage Fluid/Lubricant
Engine Oil Use only engine oil licensed to the dexos1 specfication, or equivalent, of
the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is
recommended. See
Engine Oil on page 10‑7.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant.
See
Engine Coolant on page 10‑16.
Hydraulic Brake System DOT 3 Hydraulic Brake Fluid (GM Part No. 12377967, in
Canada 89021320).
Windshield Washer Optikleen
®Washer Solvent.
Power Steering System GM Power Steering Fluid (GM Part No. 89021184, in Canada 89021186).
Automatic Transmission DEXRON
®-VI Automatic Transmission Fluid.
Key Lock Cylinders Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in
Canada 10953474).
Chassis Lubrication Chassis Lubricant (GM Part No. 12377985, in Canada 88901242) or
lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Front Axle (1500 Series Vehicles with Four-Wheel Drive) SAE 80W-90 Axle Lubricant (GM Part No. 89021671, in
Canada 89021672).

Black plate (20,1)Chevrolet Tahoe/Suburban Owner Manual - 2012
13-20 Customer Information
GM will not access this data or
share it with others except: 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 by police or
similar government office; as part of
GM's defense of litigation through
the discovery process; or, as
required by law. Data that GM
collects or receives may also be
used for GM research needs or may
be made available to others for
research purposes, where a need is
shown and the data is not tied to a
specific vehicle or vehicle owner.
OnStar®
If the vehicle is equipped with an
active OnStar system, that system
may also record data in crash or
near crash‐like situations. The
OnStar Terms and Conditions
provides information on data
collection and use and is available
at www.onstar.com (U.S.) or
www.onstar.ca (Canada), or by
pressing the
Qbutton andspeaking to an advisor. See
OnStar
Overview on page 14‑1 for more
information.
Navigation System
If the vehicle has a navigation
system, use of the system may
result in the storage of destinations,
addresses, telephone numbers, and
other trip information. Refer to the
navigation manual for information
on stored data and for deletion
instructions.
Radio Frequency
Identification (RFID)
RFID technology is used in some
vehicles for functions such as tire
pressure monitoring and ignition
system security, as well as in
connection with conveniences
such as key fobs for remote door
locking/unlocking and starting, and
in-vehicle transmitters for garage
door openers. RFID technology in
GM vehicles does not use or record personal information or link with
any other GM system containing
personal information.
Radio Frequency
Statement
This vehicle has systems that
operate on a radio frequency that
comply with Part 15 of the Federal
Communications Commission (FCC)
rules and with Industry Canada
Standards RSS‐GEN/210/220/310.
Operation is subject to the following
two conditions:
1. The device may not cause
harmful interference.
2. The device must accept any interference received, including
interference that may cause
undesired operation of the
device.
Changes or modifications to any of
these systems by other than an
authorized service facility could void
authorization to use this equipment.

Black plate (1,1)Chevrolet Tahoe/Suburban Owner Manual - 2012
OnStar 14-1
OnStar
OnStar Overview
OnStar Overview . . . . . . . . . . . . 14-1
OnStar Services
Emergency . . . . . . . . . . . . . . . . . . 14-2
Security . . . . . . . . . . . . . . . . . . . . . . 14-2
Navigation . . . . . . . . . . . . . . . . . . . 14-2
Connections . . . . . . . . . . . . . . . . . 14-4
Diagnostics . . . . . . . . . . . . . . . . . . 14-5
OnStar Additional Information
OnStar AdditionalInformation . . . . . . . . . . . . . . . . . 14-5
OnStar Overview
If equipped, this vehicle has a
comprehensive, in-vehicle system
that can connect to a live Advisor
for Emergency, Security, Navigation,
Connection, and Diagnostic
Services.
The OnStar system status light is
next to the OnStar buttons. If the
status light is:
.Solid Green: System is ready.
.Flashing Green: On a call.
.Red: Indicates a problem.
Push
Qor call 1‐888‐4‐ONSTAR
(1‐888‐466‐7827) to speak to an
Advisor. Push
Xto:
.Make a call, end a call,
or answer an incoming call.
.Give OnStar Hands-Free Calling
voice commands.
.Give OnStar Turn-by-Turn
Navigation voice commands.
Requires the available Directions
and Connections service plan.
Push
Qto connect to a live
Advisor to:
.Verify account information or
update contact information.
.Get driving directions. Requires
the available Directions and
Connections service plan.
.Receive On-Demand
Diagnostics for a check on the
vehicle’s key operating systems.
.Receive Roadside Assistance.

Black plate (6,1)Chevrolet Tahoe/Suburban Owner Manual - 2012
i-6 INDEX
Glass Replacement . . . . . . . . . . . 10-32
Glove Box . . . . . . . . . . . . . . . . . . . . . . 4-1
GM Mobility ReimbursementProgram . . . . . . . . . . . . . . . . . . . . . . 13-7
H
Halogen Bulbs . . . . . . . . . . . . . . . . 10-34
Hazard Warning Flashers . . . . . . . 6-5
Head Restraints . . . . . . . . . . . . . . . . 3-2
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . 10-32
Automatic . . . . . . . . . . . . . . . . . . . . . . 6-3
Bulb Replacement . . . . . . . . . . 10-34
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . . 6-3
Flash-to-Pass . . . . . . . . . . . . . . . . . . 6-3
High-Beam On Light . . . . . . . . . . 5-25
High/Low Beam Changer . . . . . . 6-2
Heated Rear Seats . . . . . . . . . . . . . . . . . . . 3-10
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Heated Mirrors . . . . . . . . . . . . . . . . . 2-18 Heater
Engine . . . . . . . . . . . . . . . . . . . . . . . . 9-25
Heating and Air Conditioning . . . 8-1
High-Beam On Light . . . . . . . . . . . 5-25
Highway Hypnosis . . . . . . . . . . . . . 9-12
Hill and Mountain Roads . . . . . . . 9-12
Hill Start Assist (HSA) . . . . . . . . . 9-44
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
How to Wear Safety Belts Properly . . . . . . . . . . . . . . . . . . . . . . 3-20
I
Ignition Positions . . . . . . . . . . . . . . 9-22
Ignition Transmission Lock
Check . . . . . . . . . . . . . . . . . . . . . . . 10-30
Immobilizer . . . . . . . . . . . . . . . . . . . . 2-14
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . 3-47
Infotainment . . . . . . . . . . . . . . . . . . . . 7-1
Instrument Cluster . . . . . . . . . . . . . 5-11
Instrument Panel Overview . . . . . 1-2
Introduction . . . . . . . . . . . . . . . . . . . . . . . iii
J
Jump Starting . . . . . . . . . . . . . . . . . 10-82
K
Key and Lock Messages . . . . . . . 5-39
Keyless Entry Remote (RKE) System . . . . . . . . 2-3
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
L
Labeling, Tire Sidewall . . . . . . . . 10-45
Lamp Messages . . . . . . . . . . . . . . . 5-39
Lamps Auxiliary RoofMounted Lamp . . . . . . . . . . . . . . . 6-6
Daytime Running (DRL) . . . . . . . 6-3
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Exterior Controls . . . . . . . . . . . . . . . 6-1
Exterior Lamps Off Reminder . . . . . . . . . . . . . . . . . . . . 6-2
License Plate . . . . . . . . . . . . . . . 10-35
Malfunction Indicator . . . . . . . . . 5-18
Reading . . . . . . . . . . . . . . . . . . . . . . . 6-8

Black plate (8,1)Chevrolet Tahoe/Suburban Owner Manual - 2012
i-8 INDEX
Messages (cont'd)Engine Cooling System . . . . . . . 5-37
Engine Oil . . . . . . . . . . . . . . . . . . . . 5-38
Engine Power . . . . . . . . . . . . . . . . 5-39
Fuel System . . . . . . . . . . . . . . . . . . 5-39
Key and Lock . . . . . . . . . . . . . . . . . 5-39
Lamp . . . . . . . . . . . . . . . . . . . . . . . . . 5-39
Object Detection System . . . . . 5-40
Ride Control System . . . . . . . . . . 5-41
Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-42
Transmission . . . . . . . . . . . . . . . . . 5-43
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 5-35
Vehicle Reminder . . . . . . . . . . . . . 5-44
Washer Fluid . . . . . . . . . . . . . . . . . 5-45
Mirrors Automatic Dimming . . . . . . . . . . . 2-18
Automatic DimmingRearview . . . . . . . . . . . . . . . . . . . . 2-19
Convex . . . . . . . . . . . . . . . . . . . . . . . 2-16
Folding . . . . . . . . . . . . . . . . . . . . . . . 2-17
Heated . . . . . . . . . . . . . . . . . . . . . . . 2-18
Manual . . . . . . . . . . . . . . . . . . . . . . . 2-16
Manual Rearview . . . . . . . . . . . . . 2-19 Mirrors (cont'd)
Park Tilt . . . . . . . . . . . . . . . . . . . . . . 2-19
Power . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Trailer Tow . . . . . . . . . . . . . . . . . . . . 2-17
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . 10-53
N
NavigationVehicle Data Recordingand Privacy . . . . . . . . . . . . . . . 13-20
Navigation, OnStar
®. . . . . . . . . . . 14-2
New Vehicle Break-In . . . . . . . . . . 9-21
O
Object Detection System Messages . . . . . . . . . . . . . . . . . . . . 5-40
Object Detection, Side Blind
Zone Alert (SBZA) . . . . . . . . . . . 9-53
Odometer . . . . . . . . . . . . . . . . . . . . . . 5-12 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12 Off-Road . . . . . . . . . . . . . . . . . . . . . . . 9-6
Driving . . . . . . . . . . . . . . . . . . . . . . . . . 9-6
Recovery . . . . . . . . . . . . . . . . . . . . . . 9-5
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 10-7
Engine Oil Life System . . . . . . . 10-9
Engine Oil PressureGauge . . . . . . . . . . . . . . . . . . . . . . 5-13
Messages . . . . . . . . . . . . . . . . . . . . 5-38
Pressure Light . . . . . . . . . . . . . . . . 5-24
Older Children, Restraints . . . . . 3-45
Online Owner Center . . . . . . . . . . 13-6
OnStar
®
Additional Information . . . . . . . . 14-5
Connections . . . . . . . . . . . . . . . . . . 14-4
Diagnostics . . . . . . . . . . . . . . . . . . . 14-5
Emergency . . . . . . . . . . . . . . . . . . . 14-2
Navigation . . . . . . . . . . . . . . . . . . . . 14-2
Overview . . . . . . . . . . . . . . . . . . . . . 14-1
Security . . . . . . . . . . . . . . . . . . . . . . 14-2
OnStar
®System . . . . . . . . . . . . . . . 1-28