2010 CHEVROLET TAHOE heater

Heated Seats
{WARNING:
If you cannot feel temperature change or pain to
the skin, the seat heater may cause burns even
at low temperatures. To reduce the risk of burns,
people with such a condition should use care
when using the seat heater, especially for long
periods of time. Do not place anything on the seat
that insulates against heat, such as a blanket,
cushion, cover or similar item. This may cause
the seat heater to overheat. An overheated seat
heater may cause a burn or may damage
the seat.On vehicles with heated front seats, the controls are
located on the driver and passenger doors.
I
(Heated Seatback): Press to turn on the heated
seatback.
J (Heated Seat and Seatback): Press to turn on the
heated seat and seatback.
The light on the button will come on to indicate that the
feature is working. Press the button to cycle through the
temperature settings of high, medium, and low and to
turn the heat to the seat off. Indicator lights will show
the level of heat selected: three for high, two for
medium, and one for low.
The heated seats will be canceled 10 seconds after the
ignition is turned off. To use the heated seat feature
after restarting the vehicle, press the heated seat or
seatback button again.
2-8

If the On Indicator is Lit for a Child
Restraint
If a child restraint has been installed and the on
indicator is lit:1. Turn the vehicle off.
2. Remove the child restraint from the vehicle.
3. Remove any additional items from the seat such as blankets, cushions, seat covers, seat heaters,
or seat massagers.
4. Reinstall the child restraint following the directions provided by the child restraint manufacturer and
refer to Securing a Child Restraint in the Right
Front Seat Position on page 2‑80. 5. If, after reinstalling the child restraint and restarting
the vehicle, the on indicator is still lit, turn the
vehicle off. Then slightly recline the vehicle
seatback and adjust the seat cushion, if adjustable,
to make sure that the vehicle seatback is not
pushing the child restraint into the seat cushion.
Also make sure the child restraint is not trapped
under the vehicle head restraint. If this happens,
adjust the head restraint. See Head Restraints
on
page 2‑3.
6. Restart the vehicle. The passenger sensing system may or may not
turn off the airbag for a child in a child restraint
depending upon the child’s seating posture and
body build. It is better to secure the child restraint
in a rear seat.
2-96

If the Off Indicator is Lit for an
Adult-Size Occupant
If a person of adult-size is sitting in the right front
passenger seat, but the off indicator is lit, it could be
because that person is not sitting properly in the seat.If this happens, use the following steps to allow the
system to detect that person and enable the right front
passenger frontal airbag:
1. Turn the vehicle off.
2. Remove any additional material from the seat, such as blankets, cushions, seat covers, seat
heaters, or seat massagers.
3. Place the seatback in the fully upright position.
4. Have the person sit upright in the seat, centered on the seat cushion, with legs comfortably
extended.
5. Restart the vehicle and have the person remain in this position for two to three minutes after the on
indicator is lit.
2-97

Additional Factors Affecting System
Operation
Safety belts help keep the passenger in position on the
seat during vehicle maneuvers and braking, which helps
the passenger sensing system maintain the passenger
airbag status. See“Safety Belts”and“Child Restraints”
in the Index for additional information about the
importance of proper restraint use.
If the shoulder portion of the belt is pulled out all the
way, the child restraint locking feature will be engaged.
This may unintentionally cause the passenger sensing
system to turn the airbag off for some adult size
occupants. If this happens, let the belt go back all the
way and start again.
A thick layer of additional material, such as a blanket
or cushion, or aftermarket equipment such as seat
covers, seat heaters, and seat massagers can affect
how well the passenger sensing system operates. We recommend that you not use seat covers or other
aftermarket equipment except when approved by
GM for your specific vehicle. See
Adding Equipment to
Your Airbag-Equipped Vehicleon page 2‑99for more
information about modifications that can affect how the
system operates.
The on indicator may be lit if an object, such as a
briefcase, handbag, grocery bag, laptop or other
electronic device, is put on an unoccupied seat. If this
is not desired remove the object from the seat.
{WARNING:
Stowing of articles under the passenger seat
or between the passenger seat cushion and
seatback may interfere with the proper operation
of the passenger sensing system.
2-98

In addition, the vehicle may have a passenger
sensing system for the right front passenger's
position, which includes sensors that are part of the
passenger's seat. The passenger sensing system
may not operate properly if the original seat trim is
replaced with non-GM covers, upholstery or trim,
or with GM covers, upholstery or trim designed for a
different vehicle. Any object, such as an aftermarket
seat heater or a comfort enhancing pad or device,
installed under or on top of the seat fabric, could
also interfere with the operation of the passenger
sensing system. This could either prevent proper
deployment of the passenger airbag(s) or prevent
the passenger sensing system from properly turning
off the passenger airbag(s). SeePassenger Sensing
System on page 2‑93.
If you have any questions about this, you should
contact Customer Assistance before you modify
your vehicle. The phone numbers and addresses
for Customer Assistance are in Step Two of the
Customer Satisfaction Procedure in this manual.
See Customer Satisfaction Procedure on page 8‑2.
If the vehicle has rollover roof-rail airbags, see
Different Size Tires and Wheels
on page 6‑82for
additional important information. Q: What if I added a snow plow? Will it keep the
airbags from working properly?
A: We have designed our airbag systems to work
properly under a wide range of conditions, including
snow plowing with vehicles that have the optional
Snow Plow Prep Package (RPO VYU). But do
not change or defeat the snow plow's “tripping
mechanism.” If you do, it can damage your snow
plow and your vehicle, and it may cause an airbag
inflation.
Q: Because I have a disability, I have to get my vehicle modified. How can I find out whether
this will affect my airbag system?
A: If you have questions, call Customer Assistance.
The phone numbers and addresses for Customer
Assistance are in Step Two of the Customer
Satisfaction Procedure in this manual. See
Customer Satisfaction Procedure on page 8‑2.
In addition, your dealer and the service manual have
information about the location of the airbag sensors,
sensing and diagnostic module and airbag wiring.
2-100

Section 3 Features and Controls
Keys. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Remote Keyless Entry (RKE) System . . . . . . . . . . . 3-4
Remote Keyless Entry (RKE) System Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Remote Vehicle Start . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Doors and Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Power Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Programmable Automatic Door Locks . . . . . . . . . . 3-11
Rear Door Security Locks . . . . . . . . . . . . . . . . . . . . . . 3-11
Lockout Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Liftgate/Liftglass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Power Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
Power Assist Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
Power Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21
Theft-Deterrent Systems . . . . . . . . . . . . . . . . . . . . . . . . . 3-22
Content Theft-Deterrent . . . . . . . . . . . . . . . . . . . . . . . . 3-22
PASS-Key
®III+ Electronic Immobilizer . . . . . . . . . 3-24
PASS-Key®III+ Electronic Immobilizer
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24 Starting and Operating Your Vehicle
. . . . . . . . . . . . 3-26
New Vehicle Break-In . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26
Ignition Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27
Retained Accessory Power (RAP) . . . . . . . . . . . . . 3-28
Starting the Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28
Adjustable Throttle and Brake Pedal . . . . . . . . . . . 3-30
Engine Coolant Heater . . . . . . . . . . . . . . . . . . . . . . . . . 3-30
Active Fuel Management™ . . . . . . . . . . . . . . . . . . . . 3-31
Automatic Transmission Operation . . . . . . . . . . . . . 3-32
Tow/Haul Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38
Four-Wheel Drive (Two Speed Automatic Transfer Case) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39
Four-Wheel Drive (Single Speed Automatic Transfer Case) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-44
Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-46
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-47
Shifting Out of Park . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-49
Parking Over Things That Burn . . . . . . . . . . . . . . . . 3-49
Engine Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-50
Running the Vehicle While Parked . . . . . . . . . . . . . 3-51
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-52
Manual Rearview Mirror . . . . . . . . . . . . . . . . . . . . . . . . 3-52
Automatic Dimming Rearview Mirror . . . . . . . . . . . 3-52
Outside Manual Mirrors . . . . . . . . . . . . . . . . . . . . . . . . 3-52
3-1

Adjustable Throttle and Brake Pedal
On vehicles with this feature, you can change the
position of the throttle and brake pedals.
No adjustment to the pedals can be made when the
vehicle is in R (Reverse) or while using the cruise
control.
The switch used to adjust
the pedals is located on
the instrument panel
below the climate control
system.
Press the arrow at the bottom of the switch to move the
pedals closer to your body. Press the arrow at the top of
the switch to move the pedals away from your body.
Before you start driving, fully press the brake pedal to
confirm the adjustment is right for you. While driving,
make only small adjustments. The vehicle may have a memory function which lets
pedal settings be saved and recalled. See
Memory
Seat, Mirrors, and Pedals
on page 2‑10for more
information.
Engine Coolant Heater
The engine coolant heater can provide easier starting
and better fuel economy during engine warm-up in cold
weather conditions at or below −18°C (0°F). Vehicles
with an engine heater should be plugged in at least
four hours before starting. An internal thermostat in
the plug-end of the cord may exist which will prevent
engine coolant heater operation at temperatures
above −18°C (0°F).
To Use the Engine Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord.
The cord is secured to the Engine Compartment
Fuse Block with a clip. Carefully remove the wire
tie which secures the electrical cord. Do not cut the
electrical cord.
3. Plug the cord into a normal, grounded 110-volt AC outlet.
3-30

{WARNING:
Plugging the cord into an ungrounded outlet could
cause an electrical shock. Also, the wrong kind of
extension cord could overheat and cause a fire.
You could be seriously injured. Plug the cord into
a properly grounded three-prong 110-volt AC
outlet. If the cord will not reach, use a heavy-duty
three-prong extension cord rated for at least
15 amps.
4. Before starting the engine, be sure to unplug and store the cord as it was before to keep it away from
moving engine parts. If you do not, it could be
damaged.
The length of time the heater should remain plugged in
depends on several factors. Ask a dealer in the area
where you will be parking the vehicle for the best advice
on this.
Active Fuel Management™
Vehicles with V8 engines may have Active Fuel
Management™. This system allows the engine to
operate on either all or half of its cylinders, depending
on the driving conditions.
When less power is required, such as cruising at a
constant vehicle speed, the system will operate in the
half cylinder mode, allowing the vehicle to achieve
better fuel economy. When greater power demands are
required, such as accelerating from a stop, passing,
or merging onto a freeway, the system will maintain
full-cylinder operation.
If the vehicle has an Active Fuel Management™
indicator, see DIC Operation and Displays (With DIC
Buttons)
on page 4‑47or DIC Operation and Displays
(Without DIC Buttons)on page 4‑55for more
information on using this display .
3-31