2007 GMC SIERRA check oil

File System and Naming
The song name that displays is the song name
that is contained in the ID3 tag. If the song name is
not present in the ID3 tag, then the radio displays
the le name without the extension (such
as .mp3) as the track name.
Track names longer than 32 characters or
four pages are shortened. Parts of words on the
last page of text and the extension of the lename
does not display.
Preprogrammed Playlists
Preprogrammed playlists that were created using
WinAmp™, MusicMatch™, or Real Jukebox™
software can be accessed, however, they cannot
be edited using the radio. These playlists are
treated as special folders containing compressed
audio song les.
Playing an MP3/WMA
Insert a CD-R or CD-RW partway into the slot
(Single CD Player), or press the load button and
wait for the message to insert disc (Six-Disc
CD Player), label side up. The player pulls it in,
and the CD-R or CD-RW should begin playing.If the ignition or radio is turned off with a CD-R or
CD-RW in the player, it stays in the player.
When the ignition or radio is turned on, the CD-R
or CD-RW starts to play where it stopped, if it
was the last selected audio source.
As each new track starts to play, the track number
and song title displays.
If playing a CD-R or CD-RW, the sound quality
can be reduced due to CD-R or CD-RW quality,
the method of recording, the quality of the
music that has been recorded, and the way the
CD-R or CD-RW has been handled. There can be
an increase in skipping, difficulty in nding
tracks, and/or difficulty in loading and ejecting. If
these problems occur, check the bottom surface of
the CD. If the surface of the CD is damaged,
such as cracked, broken, or scratched, the CD
does not play properly. If the surface of the CD is
soiled, seeCare of Your CDs and DVDs on
page 370for more information.
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If playing a CD-R or CD-RW, the sound quality
can be reduced due to CD-R or CD-RW quality,
the method of recording, the quality of the
music that has been recorded, and the way the
CD-R or CD-RW has been handled. There can be
an increase in skipping, difficulty in nding
tracks, and/or difficulty in loading and ejecting. If
these problems occur, check the bottom surface of
the CD. If the surface of the CD is damaged,
such as cracked, broken, or scratched, the CD
does not play properly. If the surface of the CD is
soiled, seeCare of Your CDs and DVDs on
page 370for more information.
If there is no apparent damage, try a known
good CD.
Notice:If a label is added to a CD, or more
than one CD is inserted into the slot at a time,
or an attempt is made to play scratched or
damaged CDs, the CD player could be
damaged. While using the CD player, use only
CDs in good condition without any label,
load one CD at a time, and keep the CD player
and the loading slot free of foreign materials,
liquids, and debris.Do not add any label to a CD. It could get caught
in the CD player. If a CD is recorded on a
personal computer and a description label is
needed, try labeling the top of the recorded CD
with a marking pen.
If an error displays, see “CD Messages” later in
this section.
ZCD (Eject):Press and release theZCD
button to eject the CD-R or CD-RW that is
currently playing in the bottom slot. A beep sounds
and Ejecting Disc displays. Once the disc is
ejected, Remove Disc displays. The CD-R can be
removed. If the CD-R or CD-RW is not removed,
after several seconds, the CD-R or CD-RW
automatically pulls back into the player.
If loading and reading of a CD cannot be
completed, such as unknown format, etc., and the
disc fails to eject, press and hold the
ZCD
button for more than ve seconds to force the
disc to eject.
349

Here are some things you can check before a trip:
Windshield Washer Fluid:Is the reservoir
full? Are all windows clean inside and outside?
Wiper Blades:Are they in good shape?
Fuel, Engine Oil, Other Fluids:Have you
checked all levels?
Lamps:Are they all working? Are the lenses
clean?
Tires:They are vitally important to a safe,
trouble-free trip. Is the tread good enough
for long-distance driving? Are the tires
all inated to the recommended pressure?
Weather Forecasts:What is the weather
outlook along your route? Should you
delay your trip a short time to avoid a major
storm system?
Maps:Do you have up-to-date maps?
Highway Hypnosis
Is there actually such a condition as highway
hypnosis? Or is it just plain falling asleep at the
wheel? Call it highway hypnosis, lack of awareness,
or whatever.
There is something about an easy stretch of road
with the same scenery, along with the hum of the
tires on the road, the drone of the engine, and the
rush of the wind against the vehicle that can make
you sleepy. Do not let it happen to you! If it does,
your vehicle can leave the road in less than a
second, and you could crash and be injured.
What can you do about highway hypnosis? First, be
aware that it can happen.
Then here are some tips:
Make sure your vehicle is well ventilated, with a
comfortably cool interior.
Keep your eyes moving. Scan the road ahead
and to the sides. Check your vehicle’s mirrors
and instruments frequently.
If you get sleepy, pull off the road into a rest,
service, or parking area and take a nap, get
some exercise, or both. For safety, treat
drowsiness on the highway as an emergency.
415

Turn Signals When Towing a Trailer
The arrows on your instrument panel will
ash whenever you signal a turn or lane change.
Properly hooked up, the trailer lamps will also
ash, telling other drivers you’re about to
turn, change lanes or stop.
When towing a trailer, the arrows on your
instrument panel will ash for turns even if the
bulbs on the trailer are burned out. Thus, you may
think drivers behind you are seeing your signal
when they are not. It’s important to check
occasionally to be sure the trailer bulbs are still
working.
Driving On Grades
Reduce speed and shift to a lower gearbefore
you start down a long or steep downgrade. If you
don’t shift down, you might have to use your
brakes so much that they would get hot and no
longer work well.You can tow in DRIVE (D). You may want to shift
the transmission to lower gear selection if the
transmission shifts too often (e.g., under heavy
loads and/or hilly conditions).
You may also want to activate the tow/haul mode
if the transmission shifts too often. SeeTow/Haul
Mode Light on page 266.
When towing at high elevation on steep uphill
grades, consider the following: Engine coolant at
higher elevations will boil at a lower temperature
than at or near sea level. If you turn your
engine off immediately after towing at high
elevation on steep uphill grades, your vehicle may
show signs similar to engine overheating. To
avoid this, let the engine run while parked,
preferably on level ground, with the transmission
in PARK (P) at least ve minutes before turning the
engine off. If you do get the overheat warning,
seeEngine Overheating on page 516.
475

Maintenance When Trailer Towing
Your vehicle will need service more often when
you’re pulling a trailer. SeeScheduled
Maintenance (Gasoline Engine) on page 623for
more information. Things that are especially
important in trailer operation are automatic
transmission uid (don’t overll), engine oil, axle
lubricant, belt, cooling system and brake system.
Each of these is covered in this manual, and
the Index will help you nd them quickly. If you’re
trailering, it’s a good idea to review these
sections before you start your trip.
Check periodically to see that all hitch nuts and
bolts are tight.
Trailer Wiring Harness
Your vehicle is equipped with one of the following
wiring harnesses for towing a trailer or hauling
a slide-in camper.
Basic Trailer Wiring
All regular, extended cab and crew cab pickups
have a seven-wire trailer towing harness.
For vehicles not equipped with heavy duty
trailering, the harness is clipped to the vehicle’s
frame behind the spare tire mount. The harness
requires the installation of a trailer connector,
which is available through your dealer.
If you need to tow a light-duty trailer with a
standard four-way round pin connector, you can
also get an adapter from your dealer.
478

Service........................................................ 486
Accessories and Modications................... 486
California Proposition 65 Warning.............. 487
Doing Your Own Service Work.................. 487
Adding Equipment to the Outside of
Your Vehicle.......................................... 488
Fuel............................................................. 488
Gasoline Octane........................................ 489
Gasoline Specications.............................. 489
California Fuel........................................... 489
Additives................................................... 490
Fuel E85 (85% Ethanol)............................ 491
Fuels in Foreign Countries........................ 492
Filling the Tank......................................... 493
Filling a Portable Fuel Container............... 495
Checking Things Under the Hood.............. 496
Hood Release........................................... 497
Engine Compartment Overview.................. 498
Engine Oil (Gasoline Engine).................... 500
Engine Oil Life System.............................. 503
Engine Air Cleaner/Filter
(Gasoline Engines)................................. 505Automatic Transmission Fluid.................... 508
Engine Coolant.......................................... 513
Coolant Surge Tank Pressure Cap............ 516
Engine Overheating................................... 516
Overheated Engine Protection Operating
Mode (V8 Engines Only)........................ 519
Cooling System......................................... 520
Engine Fan Noise..................................... 525
Power Steering Fluid................................. 526
Windshield Washer Fluid........................... 527
Brakes...................................................... 528
Battery...................................................... 531
Jump Starting............................................ 532
Rear Axle.................................................... 538
Four-Wheel Drive........................................ 539
Front Axle................................................... 541
Noise Control System................................. 542
Tampering with Noise Control System
Prohibited.............................................. 542
Section 5 Service and Appearance Care
483

To ensure quick starts in the wintertime, the E85
fuel must be formulated properly for your
climate according to ASTM specication D 5798.
If you have trouble starting on E85, it could
be because the E85 fuel is not properly formulated
for your climate. If this happens, switching to
gasoline or adding gasoline to the fuel tank can
improve starting. For good starting and heater
efficiency below 32°F (0°C), the fuel mix in the fuel
tank should contain no more than 70% ethanol.
It is best not to alternate repeatedly between
gasoline and E85. If you do switch fuels, it
is recommended that you add as much fuel as
possible — do not add less than three gallons
(11 L) when refueling. You should drive the vehicle
immediately after refueling for at least seven miles
(11 km) to allow the vehicle to adapt to the
change in ethanol concentration.
E85 has less energy per gallon than gasoline, so
you will need to rell the fuel tank more often
when using E85 than when you are using gasoline.
SeeFilling the Tank on page 493.Notice:Some additives are not compatible
with E85 fuel and can harm your vehicle’s fuel
system. Damage caused by additives would
not be covered by your new vehicle warranty.
Notice:Your vehicle was not designed for
fuel that contains methanol. Do not use
fuel containing methanol. It can corrode metal
parts in the fuel system and also damage
plastic and rubber parts. That damage would
not be covered under your warranty.
Fuels in Foreign Countries
If you plan on driving in another country outside
the United States or Canada, the proper fuel might
be hard to nd. Never use leaded gasoline or
any other fuel not recommended in the previous
text on fuel. Costly repairs caused by use of
improper fuel would not be covered by your
warranty.
To check the fuel availability, ask an auto club, or
contact a major oil company that does business
in the country where you will be driving.
492

Checking Things Under
the Hood
{CAUTION:
An electric engine cooling fan can start
even when the engine is not running.
To avoid injury, always keep hands,
clothing, and tools away from any engine
cooling fan.
{CAUTION:
Things that burn can get on hot engine
parts and start a re. These include
liquids like fuel, oil, coolant, brake uid,
windshield washer and other uids, and
plastic or rubber. You or others could be
burned. Be careful not to drop or spill
things that will burn onto a hot engine.
496