change wheel GMC SIERRA DENALI 2010 User Guide

Approaching a Hill
When you approach a hill, decide if it is too steep to
climb, descend, or cross. Steepness can be hard to
judge. On a very small hill, for example, there may be a
smooth, constant incline with only a small change in
elevation where you can easily see all the way to the
top. On a large hill, the incline may get steeper as you
near the top, but you might not see this because the
crest of the hill is hidden by bushes, grass, or shrubs.
Consider this as you approach a hill:
.Is there a constant incline, or does the hill get
sharply steeper in places?
.Is there good traction on the hillside, or will the
surface cause tire slipping?
.Is there a straight path up or down the hill so you
will not have to make turning maneuvers?
.Are there obstructions on the hill that can block
your path, such as boulders, trees, logs, or ruts?
.What is beyond the hill? Is there a cliff, an
embankment, a drop-off, a fence? Get out and
walk the hill if you do not know. It is the smart way
to find out.
.Is the hill simply too rough? Steep hills often have
ruts, gullies, troughs, and exposed rocks because
they are more susceptible to the effects of erosion.
Driving Uphill
Once you decide it is safe to drive up the hill:
.Use a low gear and get a firm grip on the steering
wheel.
.Get a smooth start up the hill and try to maintain
speed. Not using more power than needed can
avoid spinning the wheels or sliding.
{WARNING:
Turning or driving across steep hills can be
dangerous. You could lose traction, slide
sideways, and possibly roll over. You could be
seriously injured or killed. When driving up hills,
always try to go straight up.
.Try to drive straight up the hill if at all possible.
If the path twists and turns, you might want to find
another route.
.Ease up on the speed as you approach the top of
the hill.
.Attach a flag to the vehicle to be more visible to
approaching traffic on trails or hills.
5-18

Stalling on an Incline
{WARNING:
Getting out on the downhill (low) side of a vehicle
stopped across an incline is dangerous. If the
vehicle rolls over, you could be crushed or killed.
Always get out on the uphill (high) side of the
vehicle and stay well clear of the rollover path.
If the vehicle stalls when crossing an incline, be sure
you, and any passengers, get out on the uphill side,
even if the door there is harder to open. If you get out
on the downhill side and the vehicle starts to roll over,
you will be right in its path.
If you have to walk down the slope, stay out of the path
the vehicle will take if it does roll over.
Driving in Mud, Sand, Snow, or Ice
When you drive in mud, snow, or sand, the wheels do
not get good traction. Acceleration is not as quick,
turning is more difficult, and braking distances are
longer.
It is best to use a low gear when in mud —the deeper
the mud, the lower the gear. In really deep mud, keep
the vehicle moving so it does not get stuck. When driving on sand, wheel traction changes. On
loosely packed sand, such as on beaches or sand
dunes, the tires will tend to sink into the sand. This
affects steering, accelerating, and braking. Drive at a
reduced speed and avoid sharp turns or abrupt
maneuvers.
Hard packed snow and ice offer the worst tire traction.
On these surfaces, it is very easy to lose control. On
wet ice, for example, the traction is so poor that you will
have difficulty accelerating. And, if the vehicle does get
moving, poor steering and difficult braking can cause it
to slide out of control.
{WARNING:
Driving on frozen lakes, ponds, or rivers can be
dangerous. Underwater springs, currents under
the ice, or sudden thaws can weaken the ice. Your
vehicle could fall through the ice and you and your
passengers could drown. Drive your vehicle on
safe surfaces only.
5-22

6. Adjust the Trailer Gain to just below the point oftrailer wheel lock-up, indicated by trailer wheel
squeal or tire smoke when a trailer wheel locks.
Trailer wheel lock-up may not occur if towing a
heavily loaded trailer. In this case, adjust the
Trailer Gain to the highest allowable setting for the
towing condition.
7. Re-adjust Trailer Gain any time vehicle loading, trailer loading or road surface conditions change or
if trailer wheel lock-up is noticed at any time while
towing.
Other ITBC Related DIC Messages
In addition to displaying TRAILER GAIN and TRAILER
OUTPUT through the DIC, trailer connection and ITBC
system status is displayed in the DIC.
TRAILER CONNECTED –This message will be briefly
displayed when a trailer with electric brakes is first
connected to the vehicle. This message will
automatically turn off in about ten seconds. The driver
can also acknowledge this message before it
automatically turns off. CHECK TRAILER WIRING
–This message will be
displayed if:
1. The ITBC system first determines connection to a trailer with electric brakes and then the trailer
harness becomes disconnected from the vehicle.
If the disconnect occurs while the vehicle is
stationary, this message will automatically turn off
in about thirty seconds. This message will also turn
off if the driver acknowledges this message off or if
the trailer harness is re-connected.
If the disconnect occurs while the vehicle is
moving, this message will continue until the ignition
is turned off. This message will also turn off if the
driver acknowledges this message off or if the
trailer harness is re-connected.
2. There is an electrical fault in the wiring to the electric trailer brakes. This message will continue
as long as there is an electrical fault in the trailer
wiring. This message will also turn off if the driver
acknowledges this message off.
5-54

Reset the Tire Pressure Monitor System. SeeTire
Pressure Monitor Operation
on page 6‑74.
Make certain that all wheel nuts are properly
tightened. See “Wheel Nut Torque” under
Capacities and Specifications
on page 6‑122.
{WARNING:
Rust or dirt on a wheel, or on the parts to
which it is fastened, can make wheel nuts
become loose after time. The wheel could
come off and cause an accident. When you
change a wheel, remove any rust or dirt from
places where the wheel attaches to the
vehicle. In an emergency, you can use a
cloth or a paper towel to do this; but be sure
to use a scraper or wire brush later,
if needed, to get all the rust or dirt off. See
Changing a Flat Tire
on page 6‑86.
Make sure the spare tire is stored securely. Push,
pull, and then try to rotate or turn the tire. If it
moves, tighten the cable. See Storing a Flat or
Spare Tire and Tools
on page 6‑100.
When It Is Time for New Tires
Various factors, such as maintenance, temperatures,
driving speeds, vehicle loading, and road conditions,
influence when you need new tires.
One way to tell when it is
time for new tires is to
check the treadwear
indicators, which appear
when your tires have only
1/16 inch (1.6 mm) or less
of tread remaining. Some
commercial truck tires
may not have treadwear
indicators.
6-79

A rear blowout, particularly on a curve, acts much like a
skid and may require the same correction you would
use in a skid. In any rear blowout remove your foot from
the accelerator pedal. Get the vehicle under control by
steering the way you want the vehicle to go. It may be
very bumpy and noisy, but you can still steer. Gently
brake to a stop, well off the road if possible.
{WARNING:
Lifting a vehicle and getting under it to do
maintenance or repairs is dangerous without the
appropriate safety equipment and training. If a
jack is provided with the vehicle, it is designed
only for changing a flat tire. If it is used for
anything else, you or others could be badly
injured or killed if the vehicle slips off the jack. If a
jack is provided with the vehicle, only use it for
changing a flat tire.
If a tire goes flat, the next part shows how to use the
jacking equipment to change a flat tire safely.
Changing a Flat Tire
If a tire goes flat, avoid further tire and wheel damage
by driving slowly to a level place. Turn on the hazard
warning flashers. See Hazard Warning Flashers
on
page 4‑3.
{WARNING:
Changing a tire can be dangerous. The vehicle
can slip off the jack and roll over or fall on you or
other people. You and they could be badly injured
or even killed. Find a level place to change your
tire. To help prevent the vehicle from moving:
1. Set the parking brake firmly.
2. Put an automatic transmission shift lever in P (Park), or shift a manual transmission to
1 (First) or R (Reverse).
3. If you have a four-wheel-drive vehicle, be sure the transfer case is in a drive gear –not in
N (Neutral).
(Continued)
6-86

WARNING: (Continued)
4. Turn off the engine and do not restart whilethe vehicle is raised.
5. Do not allow passengers to remain in the vehicle.
To be even more certain the vehicle will not move,
put blocks at the front and rear of the tire farthest
away from the one being changed. That would be
the tire on the other side, at the opposite end of
the vehicle.
When the vehicle has a flat tire (B), use the following
example as a guide to assist you in the placement of
wheel blocks (A).
A. Wheel Block
B. Flat Tire
The following information explains how to use the jack
and change a tire.
6-87

5. Remove all the wheelnuts and take off the
flat tire.
{WARNING:
Rust or dirt on a wheel, or on the parts to
which it is fastened, can make wheel nuts
become loose after time. The wheel could
come off and cause an accident. When you
change a wheel, remove any rust or dirt from
places where the wheel attaches to the
vehicle. In an emergency, you can use a
cloth or a paper towel to do this; but be sure
to use a scraper or wire brush later,
if needed, to get all the rust or dirt off. See
Changing a Flat Tire
on page 6‑86.
6. Remove any rust or dirtfrom the wheel bolts,
mounting surfaces and
spare wheel.
6-95

Capacities and Specifications
The following approximate capacities are given in English and metric conversions. SeeRecommended Fluids and
Lubricantson page 7‑11for more information.
Application Capacities
English Metric
Air Conditioning Refrigerant For the air conditioning system refrigerant charge
amount, see the refrigerant caution label located under
the hood. See your dealer/retailer for more information.
Cooling System 16.8 qt15.9 L
Engine Oil with Filter 6.0 qt†5.7 L†
Fuel Tank 26.0 gal98.4 L
Transmission Fluid (Pan Removal and Filter Replacement) 6.0 qt5.7 L
Transfer Case Fluid 1.5 qt1.4 L
Wheel Nut Torque 140 lbft190Y
All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this manual.
Recheck fluid after filling.
†Oil filter should be changed at every oil change.
Engine Specifications
Engine VIN CodeTransmission Spark Plug Gap
6.2L V8 2Automatic 0.040 in (1.01 mm)
6-122

Tires (cont.)If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-85
Inflation - Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-71
Inspection and Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . 6-78
Installing the Spare Tire . . . . . . . . . . . . . . . . . . . . . . . . . . 6-92
Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-37
Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . . . . 6-74
Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . . . . 6-73
Removing the Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-92
Removing the Spare Tire and Tools . . . . . . . . . . . . . . . 6-88
Secondary Latch System . . . . . . . . . . . . . . . . . . . . . . . . . 6-97
Sidewall Labeling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-63
Spare Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-104
Storing a Flat or Spare Tire and Tools . . . . . . . . . . .6-100
Terminology and Definitions . . . . . . . . . . . . . . . . . . . . . . 6-68
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . 6-82
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . 6-84
Wheel Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-84
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . 6-79
Tow/Haul Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32
Tow/Haul Mode Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-43 Towing
Recreational Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-38
Towing a Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-42
Trailer Recommendations . . . . . . . . . . . . . . . . . . . . . . . . 5-61
Your Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-38
Traction StabiliTrak
®System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Trailer Towing Recommendations . . . . . . . . . . . . . . . . . . . . . . . . 5-61
Transmission Fluid, Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-24
Transmission Operation, Automatic . . . . . . . . . . . . . . . . 3-28
Transportation Program, Courtesy . . . . . . . . . . . . . . . . . 8-11
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-29
Truck-Camper Loading Information . . . . . . . . . . . . . . . . 5-37
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . .4-4
Turn Signal/Multifunction Lever . . . . . . . . . . . . . . . . . . . . . .4-4
U
Ultrasonic Rear Parking Assist (URPA) . . . . . . . . . . . . 3-43
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . . 6-82
Universal Home Remote System . . . . . . . . . . . . . . . . . . 3-51 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-51
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