2007 GMC YUKON XL oil temperature

{CAUTION:
Operating the engine with the air
cleaner/lter off can cause you or others
to be burned. The air cleaner not only
cleans the air; it helps to stop ames if
the engine backres. If it is not there and
the engine backres, you could be
burned. Do not drive with it off, and be
careful working on the engine with the air
cleaner/lter off.
Automatic Transmission Fluid
When to Check and Change Automatic
Transmission Fluid
A good time to check your automatic transmission
uid level is when the engine oil is changed.
Change the uid and lter at the intervals listed in
Additional Required Services on page 557, and
be sure to use the transmission uid listed in
Recommended Fluids and Lubricants on page 564.
How to Check Automatic
Transmission Fluid
Because this operation can be a little difficult, you
may choose to have this done at the dealership
service department.
If you do it yourself, be sure to follow all the
instructions here, or you could get a false reading
on the dipstick.
Notice:Too much or too little uid can
damage your transmission. Too much can
mean that some of the uid could come out
and fall on hot engine part or exhaust system
parts, starting a re. Too little uid could
cause the transmission to overheat. Be sure to
get an accurate reading if you check your
transmission uid.
Wait at least 30 minutes before checking the
transmission uid level if you have been driving:
When outside temperatures are above
90°F (32°C).
At high speed for quite a while.
In heavy traffic — especially in hot weather.
While pulling a trailer.
445

Engine Coolant
The cooling system in your vehicle is lled with
DEX-COOL®engine coolant. This coolant is
designed to remain in your vehicle for ve years or
150,000 miles (240 000 km), whichever occurs
rst, if you add only DEX-COOL
®extended
life coolant.
The following explains your cooling system and
how to add coolant when it is low. If you have
a problem with engine overheating, seeEngine
Overheating on page 452.A 50/50 mixture of clean, drinkable water and
DEX-COOL
®coolant will:
Give freezing protection down to
−34°F (−37°C).
Give boiling protection up to 265°F (129°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning lights and gages work as they
should.
Notice:Using coolant other than DEX-COOL
®
may cause premature engine, heater core,
or radiator corrosion. In addition, the engine
coolant may require changing sooner, at
the rst maintenance service after each
30,000 miles (50 000 km) or 24 months,
whichever occurs rst. Any repairs would not
be covered by your warranty. Always use
DEX-COOL
®(silicate-free) coolant in your
vehicle.
449

(h)Change automatic transmission uid and lter
if the vehicle is mainly driven under one or
more of these conditions:
In heavy city traffic where the outside
temperature regularly reaches 90°F (32°C) or
higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police, or delivery
service.
(i)Drain, ush, and rell cooling system. This
service can be complex; you should have your
dealer perform this service. See Engine Coolant on
page 449 for what to use. Inspect hoses. Clean
radiator, condenser, pressure cap, and ller neck.
Pressure test the cooling system and pressure cap.
(j)A uid loss in any vehicle system could indicate
a problem. Have the system inspected and
repaired and the uid level checked. Add uid if
needed.
(k)Inspect system. Check all fuel and vapor lines
and hoses for proper hook-up, routing, and
condition. Check that the purge valve works
properly, if equipped. Replace as needed.(l)If you drive regularly under dusty conditions,
inspect the lter at each engine oil change.
(m)Visually inspect belt for fraying, excessive
cracks, or obvious damage. Replace belt if
necessary.
Owner Checks and Services
These owner checks and services should be
performed at the intervals specied to help
ensure the safety, dependability, and emission
control performance of your vehicle. Your
GM Goodwrench
®dealer can assist you with
these checks and services.
Be sure any necessary repairs are completed at
once. Whenever any uids or lubricants are added
to your vehicle, make sure they are the proper
ones, as shown inRecommended Fluids and
Lubricants on page 564.
At Each Fuel Fill
It is important to perform these underhood checks
at each fuel ll.
560

Driver Information Center (DIC).................... 244
DIC Operation and Displays..............244, 251
DIC Vehicle Customization........................ 264
DIC Warnings and Messages.................... 254
Driving
At Night.................................................... 373
City........................................................... 378
Defensive.................................................. 340
Drunken.................................................... 341
Freeway.................................................... 379
Hill and Mountain Roads........................... 382
In Rain and on Wet Roads....................... 375
Off-Road................................................... 356
Recovery Hooks....................................... 389
Rocking Your Vehicle to Get it Out........... 388
Winter....................................................... 384
Dual Automatic Climate Control System........ 213
DVD
Rear Seat Entertainment System.............. 321
E
Electrical System
Add-On Equipment.................................... 539
Center Instrument Panel Fuse Block......... 542
Fuses and Circuit Breakers....................... 540
Instrument Panel Fuse Block.................... 540Electrical System (cont.)
Power Windows and Other
Power Options....................................... 539
Underhood Fuse Block.............................. 543
Windshield Wiper Fuses............................ 539
Engine
Air Cleaner/Filter....................................... 443
Battery...................................................... 466
Check and Service Engine Soon Light...... 236
Coolant..................................................... 449
Coolant Heater.......................................... 140
Coolant Temperature Gage....................... 234
Drive Belt Routing..................................... 567
Engine Compartment Overview................. 436
Exhaust.................................................... 155
Fan Noise................................................. 460
Oil ............................................................ 438
Oil Life System......................................... 441
Overheated Protection Operating Mode....... 454
Overheating.............................................. 452
Starting..................................................... 138
Entry Lighting............................................... 204
Event Data Recorders (EDR)....................... 583
Exit Lighting................................................. 204
Extender, Safety Belt...................................... 60
Exterior Lamps............................................. 199
597

F
Filter
Engine Air Cleaner.................................... 443
Finish Damage............................................. 536
Flashers, Hazard Warning............................ 188
Flash-to-Pass............................................... 192
Flat Tire....................................................... 507
Flat Tire, Changing....................................... 508
Flat Tire, Storing.......................................... 522
Fluid
Automatic Transmission............................. 445
Power Steering......................................... 461
Windshield Washer................................... 462
Fog Lamp Light............................................ 241
Fog Lamps................................................... 202
Four-Wheel Drive.................................146, 473
Front Axle.................................................... 474
Fuel............................................................. 428
Additives................................................... 429
California Fuel.......................................... 429
E85 (85% Ethanol)................................... 430
Filling a Portable Fuel Container............... 434
Filling Your Tank....................................... 432
Fuels in Foreign Countries........................ 431
Gage........................................................ 243Fuel (cont.)
Gasoline Octane....................................... 428
Gasoline Specications............................. 428
Low Warning Light.................................... 243
Fuses
Center Instrument Panel Fuse Block......... 542
Fuses and Circuit Breakers....................... 540
Instrument Panel Fuse Block.................... 540
Underhood Fuse Block.............................. 543
Windshield Wiper...................................... 539
G
Gage
Engine Coolant Temperature..................... 234
Fuel.......................................................... 243
Oil Pressure.............................................. 239
Speedometer............................................ 226
Tachometer............................................... 226
Voltmeter Gage......................................... 231
Garage Door Opener................................... 169
Gasoline
Octane...................................................... 428
Specications............................................ 428
Glove Box.................................................... 174
GM Mobility Reimbursement Program........... 577
598