2010 GMC SAVANA climate control

WARNING: (Continued)
•
Check again from time to time to be sure
snow does not collect there.
•Open a window about 5 cm (two inches) on
the side of the vehicle that is away from the
wind to bring in fresh air.
•Fully open the air outlets on or under the
instrument panel.
•Adjust the Climate Control system to a setting
that circulates the air inside the vehicle and
set the fan speed to the highest setting. See
Climate Control System in the Index.
For more information about carbon monoxide, see
Engine Exhaust on page 3-38.
Snow can trap exhaust gases under your vehicle.
This can cause deadly CO (carbon monoxide) gas
to get inside. CO could overcome you and kill you.
You cannot see it or smell it, so you might not
know it is in your vehicle. Clear away snow from
around the base of your vehicle, especially any
that is blocking the exhaust.Run the engine for short periods only as needed to
keep warm, but be careful.
To save fuel, run the engine for only short periods as
needed to warm the vehicle and then shut the engine off
and close the window most of the way to save heat.
Repeat this until help arrives but only when you
feel really uncomfortable from the cold. Moving about to
keep warm also helps.
If it takes some time for help to arrive, now and then
when you run the engine, push the accelerator
pedal slightly so the engine runs faster than the idle
speed. This keeps the battery charged to restart
the vehicle and to signal for help with the headlamps.
Do this as little as possible to save fuel.
5-15

Tow/Haul is designed to be most effective when the
vehicle and trailer combined weight is at least 75 percent
of the vehicle’s Gross Combined Weight Rating (GCWR).
See “Weight of the Trailer” later in the section. Tow/Haul
is most useful under the following driving conditions:
•When pulling a heavy trailer or a large or heavy load
through rolling terrain.
•When pulling a heavy trailer or a large or heavy load
in stop and go traffic.
•When pulling a heavy trailer or a large or heavy load
in busy parking lots where improved low speed
control of the vehicle is desired.
Operating the vehicle in Tow/Haul when lightly loaded
or with no trailer at all will not cause damage. However,
there is no benefit to the selection of Tow/Haul when
the vehicle is unloaded. Such a selection when unloaded
may result in unpleasant engine and transmission
driving characteristics and reduced fuel economy.
Tow/Haul is recommended only when pulling a heavy
trailer or a large or heavy load.
Trailer Brakes
A loaded trailer that weighs more than 1,500 lbs
(680 kg) needs to have its own brake system that is
adequate for the weight of the trailer. Be sure to read
and follow the instructions for the trailer brakes so
they are installed, adjusted and maintained properly.
Driving with a Trailer
{WARNING:
When towing a trailer, exhaust gases may collect
at the rear of the vehicle and enter if the liftgate,
trunk/hatch, or rear-most window is open.
Engine exhaust contains carbon monoxide (CO)
which cannot be seen or smelled. It can cause
unconsciousness and even death.
To maximize safety when towing a trailer:
•Have the exhaust system inspected for leaks
and make necessary repairs before starting
a trip.
•Never drive with the liftgate, trunk/hatch, or
rear-most window open.
•Fully open the air outlets on or under the
instrument panel.
•Adjust the Climate Control system to a setting
that brings in only outside air and set the fan
speed to the highest setting. See Climate
Control System in the Index.
For more information about carbon monoxide, see
Engine Exhaust on page 3-38
5-34

Uniform Tire Quality Grading
Quality grades can be found where applicable on
the tire sidewall between tread shoulder and
maximum section width. For example:
Treadwear 200 Traction AA
Temperature A
The following information relates to the system
developed by the United States National Highway
Traffic Safety Administration (NHTSA), which
grades tires by treadwear, traction, and
temperature performance. This applies only to
vehicles sold in the United States. The grades are
molded on the sidewalls of most passenger car
tires. The Uniform Tire Quality Grading (UTQG)
system does not apply to deep tread, winter-type
snow tires, space-saver, or temporary use
spare tires, tires with nominal rim diameters of
10 to 12 inches (25 to 30 cm), or to some
limited-production tires.
While the tires available on General Motors
passenger cars and light trucks may vary with
respect to these grades, they must also conform
to federal safety requirements and additional
General Motors Tire Performance Criteria (TPC)
standards.
Treadwear
The treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified
government test course. For example, a tire
graded 150 would wear one and a half (1.5) times
as well on the government course as a tire
graded 100. The relative performance of tires
depends upon the actual conditions of their use,
however, and may depart significantly from
the norm due to variations in driving habits, service
practices, and differences in road characteristics
and climate.
Traction – AA, A, B, C
The traction grades, from highest to lowest, are
AA, A, B, and C. Those grades represent the tire’s
ability to stop on wet pavement as measured
under controlled conditions on specified
government test surfaces of asphalt and concrete.
A tire marked C may have poor traction
performance.
6-75

Cargo Door Relocking....................................... 3-9
CD, MP3 .......................................................4-72
Center High-Mounted Stoplamp (CHMSL)...........6-51
Chains, Tire...................................................6-78
Charging System Light....................................4-27
Check
Engine Lamp..............................................4-31
Checking Things Under the Hood......................6-12
Chemical Paint Spotting.................................6-102
Child Restraints
Infants and Young Children...........................2-33
Lower Anchors and Tethers for Children..........2-42
Older Children.............................................2-30
Securing a Child Restraint in a Rear Seat
Position..................................................2-49
Securing a Child Restraint in the Right Front
Seat Position...................................2-52, 2-56
Systems.....................................................2-37
Where to Put the Restraint...........................2-40
Cigarette Lighter.............................................4-15
Circuit Breakers............................................6-104
Cleaning
Aluminum Wheels......................................6-101
Exterior Lamps/Lenses................................6-100
Fabric/Carpet..............................................6-97
Finish Care...............................................6-100
Instrument Panel, Vinyl, and Other Plastic
Surfaces.................................................6-98
Interior.......................................................6-96Cleaning (cont.)
Tires........................................................6-102
Underbody Maintenance.............................6-102
Washing Your Vehicle...................................6-99
Weatherstrips..............................................6-99
Windshield and Wiper Blades......................6-101
Climate Control System...................................4-15
Outlet Adjustment........................................4-17
Rear Air Conditioning and Heating System......4-19
Rear Heating System...................................4-18
Climate Controls.............................................1-12
Clock, Setting.................................................4-60
Collision Damage Repair..................................8-10
Compass.......................................................4-43
Control of a Vehicle.......................................... 5-3
Coolant
Engine.......................................................6-28
Engine Temperature Gage............................4-30
Cooling System..............................................6-26
Courtesy Transportation Program........................ 8-9
Cruise Control.................................................. 4-6
Light..........................................................4-36
Customer Assistance......................................... 8-5
Offices......................................................... 8-5
Text Telephone (TTY) Users........................... 8-5
Customer Information
Service Publications Ordering Information........8-15
Customer Satisfaction Procedure........................ 8-2
3