1997 GMC SIERRA climate control

Electronic Transfer Case (If Equipped)
If your four-wheel-drive vehicle has the electronic
transfer case, the transfer case switches are below and
to
the left of the climate control system.
Use these switches to shift into and out
of four-wheel
drive. You can choose among three driving settings:
.
2HI: This setting is for driving in most street and
highway situations. Your front axle is not engaged
in
two-wheel drive.
4HI: This setting engages your front axle to help
drive your vehicle. Use
4HI when you need extra
traction, such as
on snowy or icy roads, or in most
off-road situations.
4LO: This setting also engages your front axle to give
you extra traction. You may never need
4LO. It sends
the maximum power to all four wheels. You might
choose
4LO if you were driving off-road in sand, mud
or deep snow and climbing or descending steep hills.
Indicator lights in the switches show you which setting
you are in. The indicator lights will come
on briefly
when you turn on the ignition and the last chosen setting
will stay on. If the lights do not come on, you should
take your vehicle in for service. An indicator light will
flash while shifting. It
will remain illuminated when
the shift is completed. If for some reason the transfer
cannot make a requested shift,
it will return to the last
chosen setting.
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Mixing tires could cause you to lose control while
driving.
If you mix tires of different sizes or types
(radial and bias-belted tires), the vehicle may not
handle properly, and
you could have a crash.
Using tires
of different sizes may also cause
damage to your vehicle. Be sure to use the same
size and type tires on all wheels.
Uniform Tire Quality Grading
The following information relates to the system
developed
by the United States National Highway
Traffic Safety Administration, 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 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 1/2) 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 -- A, B, C
The traction grades, from highest to lowest, are A, B, and
C, and they 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.
Warning: The traction grade assigned to this tire is based
on braking (straightahead) traction tests and does not
include cornering (turning) traction.
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Climate Control System ....................... 3.2. 3.3
Clock. Setting the
................................ 3-7
Clutch Fluid. Hydraulic
.......................... 6-26
Comfort Controls
................................ 3-2
Comfort Guides. Rear
........................... 1-40
Compact Disc Care
............................. 3-26
Compact Disc Player
....................... 3- 16. 3-20
Compass. Rearview Mirror with
................... 2-48
Console Storage
................................ 2-55
Control of a Vehicle
.............................. 4-6
Convex Outside Mirror
.......................... 2-5 1
Coolant ....................................... 6-29
Heater. Engine
............................... 2- 14
RecoveryTank
............................... 5-15
Cooling System ................................ 5- 13
Courtesy Transportation
........................... 8-8
Cruise Control
................................. 2-40
Cupholders
............................... 2-54. 2-55
Customer Assistance Information ................... 8-3
Customer Satisfaction Procedure
.................... 8-2
Customer
Assistance for Text Telephone Users
......... 8-4
Damage. Finish
............................... 6-66
Damage. Sheet Metal
............................ 6-66
Daytime Running Lamps
......................... 2-44
Daytime Running Lamps Indicator Light
............ 2-77
Dead Battery ................................... 5-3
Defects. Reporting Safety
........................ 8- 10
Defensive Driving ............................... 4-2
Defogger. Rear Window
.......................... 3-6
Defogging and Defrosting ......................... 3-6 Dolby@
B Noise Reduction ........................ 3-15
Door
DomeLamps
.................................. 2-46
Locks
....................................... 2-5
StoragePocket
............................... 2-52
Third
........................................ 2-4
Downshifting
.................................. 2-21
Driver Position
................................. 1-15
Driving City
........................................ 4-32
Defensive
.................................... 4-2
Drunken
..................................... 4-3
Freeway
.................................... 4-33
Guidelines
.................................. 4-14
InaBlizzard
................................. 4-39
IntheRain
.................................. 4-29
Night
...................................... 4-27
Off-Road
................................... 4-14
OnCurves
................................... 4-9
On Grades While Towing
a Trailer ............... 4-56
On Hill and Mountain Roads
.................... 4-35
OnSnowandIce
............................. 4-37
Throughwater
............................... 4-31
WetRoads
.................................. 4-29
Winter
...................................... 4-37
With a Trailer
................................ 4-54
Drunken Driving
................................ 4-3
Easy Entry Seat ................................ 1-7
Electrical Equipment. Adding
........... 2- 14. 3-24. 6-70
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Electrical System ............................... 6-70
Engine
.................................. 6-10. 6-12
Electrochromic
Daymight Rearview Mirror
.......... 2-48
Coolant
..................................... 6-29
Coolant Heater
............................... 2- 14
Coolant Level Check
.......................... 7-45
Coolant Temperature Gage
..................... 2-72
Cooling System Capacity
....................... 6-78
Exhaust
..................................... 2-32
FuseBlocks
............................ 6-71, 6-73
Identification
................................ 6-69
OilLevelCheck
.............................. 7-45
Overheating
................................. 5-11
Running While Parked
......................... 2-32
Specifications
................................ 6-76
StartingYour
................................ 2-13
Underhood Fuse/Relay Center
................... 6-73
Engineoil
.................................... 6-15
Adding
..................................... 6-15
Additives
................................... 6-18
Checking
................................... 6-15
Used
....................................... 6-18
Whentochange
.............................. 6-18
Exhaust. Engine
................................ 2-32
Pressure Gage
................................ 2-75
Fabric Cleaning
............................... 6-60
Fan Control. Climate Control System ............ 3.2. 3.3
Fender Marker Lamp
Bulb Replacement ............. 6-44
FillingYourTank
................................ 6-5
Filter. Air ..................................... 6-19
Finish Care
.................................... 6-64
Finish Damage
................................. 6-66
Flashers. Hazard Warning
......................... 5-2
Flat Tire. Changing
............................. 5-22
Fluid Capacities
................................ 6-78
Fluids and Lubricants
............................ 7-51
Fog Lamps
.................................... 2-45
Foreign Countries. Fuel
........................... 6-4
Four-wheel Drive
......................... 2-22. 6-27
French LanguageManual
11
Front Axle .................................... 6-28
Front Axle Locking Feature
....................... 2-23
FrontTowing
.................................. 5-10
Front Turn Signal Lamp Bulb Replacement ..... 6-42. 6-43
Fuel
.......................................... 6-3
Filling Your Tank
.............................. 6-5
Gage ....................................... 2-78
In Foreign Countries ........................... 6-4
Tank Capacity
............................... 6-78
Fuses and Circuit Breakers
....................... 6-71
FusibleLinks
.................................. 6-71
.. ...........................
bages Engine Coolant Temperature
.................... 2-72
Engine Oil Pressure
........................... 2-75 "
Fuel ....................................... 2-78
Speedometer
................................. 2-65
Tachometer
.................................. 2-65
Voltmeter
................................... 2-70
9-4
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