2008 CADILLAC CTS checking oil

Service............................................................5-4
Accessories and Modications..........................5-4
California Proposition 65 Warning.....................5-5
California Perchlorate Materials Requirements.....5-5
Doing Your Own Service Work.........................5-5
Adding Equipment to the Outside of the
Vehicle......................................................5-6
Fuel................................................................5-6
Gasoline Octane............................................5-7
Gasoline Specications....................................5-7
California Fuel...............................................5-7
Additives.......................................................5-8
Fuels in Foreign Countries...............................5-8
Filling the Tank..............................................5-9
Filling a Portable Fuel Container.....................5-11
Checking Things Under the Hood....................5-12
Hood Release..............................................5-12
Engine Compartment Overview.......................5-14
Engine Oil...................................................5-16
Engine Oil Life System..................................5-19
Engine Cover...............................................5-21
Engine Air Cleaner/Filter................................5-21
Automatic Transmission Fluid.........................5-25
Manual Transmission Fluid.............................5-26Hydraulic Clutch...........................................5-27
Engine Coolant.............................................5-28
Coolant Surge Tank Pressure Cap..................5-31
Engine Overheating.......................................5-31
Overheated Engine Protection
Operating Mode........................................5-33
Cooling System............................................5-34
Power Steering Fluid.....................................5-39
Windshield Washer Fluid................................5-40
Brakes........................................................5-41
Battery........................................................5-44
Jump Starting...............................................5-45
All-Wheel Drive..............................................5-50
Rear Axle.......................................................5-51
Headlamp Aiming...........................................5-52
Bulb Replacement..........................................5-55
High Intensity Discharge (HID) Lighting............5-55
Halogen Bulbs..............................................5-55
Front Turn Signal and Fog Lamps...................5-56
License Plate Lamp......................................5-56
Replacement Bulbs.......................................5-57
Windshield Wiper Blade Replacement..............5-57
Section 5 Service and Appearance Care
5-1

Checking Things Under
the Hood
{CAUTION:
An electric fan under the hood can start up
and injure you even when the engine is not
running. Keep hands, clothing, and tools away
from any underhood electric 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.
Hood Release
To open the hood, do the following:
1. Pull the hood release
lever with this symbol
on it. It is located inside
the vehicle on the lower
left side of the
instrument panel.
5-12

A. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” underWindshield Washer Fluid
on page 5-40.
B. Underhood Fuse Block. SeeUnderhood Fuse Block
on page 5-123.
C. Remote Positive (+) Terminal. SeeJump Starting on
page 5-45.
D. Remote Negative (+) Terminal. SeeJump Starting
on page 5-45.
E. Passenger Compartment Air Filter. SeePassenger
Compartment Air Filter on page 3-29.
F. Engine Cooling Fan. SeeCooling System on
page 5-34.
G. Power Steering Fluid Reservoir (Under Engine
Cover). SeePower Steering Fluid on page 5-39.H. Engine Oil Fill Cap. See “When to Add Engine Oil”
underEngine Oil on page 5-16.
I. Engine Oil Dipstick (Out of View). See “Checking
Engine Oil” underEngine Oil on page 5-16.
J. Hydraulic Clutch Reservoir (If Equipped)
(Not Shown). See “When to Check and What
to Use” underHydraulic Clutch on page 5-27.
K. Brake Master Cylinder Reservoir (Out of View).
See “Brake Fluid” underBrakes on page 5-41.
L. Engine Coolant Surge Tank and Pressure Cap.
SeeCoolant Surge Tank Pressure Cap on page 5-31
andCooling System on page 5-34.
M. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 5-21.
5-15

Engine Oil
There is an oil pressure
light in the instrument
cluster and an Oil Pressure
Low Stop Engine message
on the Driver Information
Center (DIC).
If the light and/or message appear, check the engine oil
level right away. For more information, see “Oil Pressure
Low Stop Engine” underDIC Warnings and Messages
on page 3-56andOil Pressure Light on page 3-44.
You should check the engine oil level regularly; this is
an added reminder.
Checking Engine Oil
It is a good idea to check the engine oil every time you
get fuel. In order to get an accurate reading, the oil
must be warm and the vehicle must be on level ground.
The engine oil dipstick handle is a yellow loop.
SeeEngine Compartment Overview on page 5-14
for the location of the engine oil dipstick.
1. Turn off the engine and give the oil several minutes
to drain back into the oil pan. If you do not do this,
the oil dipstick might not show the actual level.
2. Pull out the dipstick and clean it with a paper towel
or cloth, then push it back in all the way. Remove it
again, keeping the tip down, and check the level.
5-16

G
Gage
Engine Coolant Temperature.........................3-40
Engine Oil Pressure.....................................3-45
Fuel..........................................................3-47
Speedometer..............................................3-32
Tachometer.................................................3-32
Garage Door Opener.......................................2-58
Gasoline
Octane........................................................ 5-7
Specications............................................... 5-7
Glove Box.....................................................2-62
GM Mobility Reimbursement Program.................. 7-7
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-2
Headlamp
Aiming .......................................................5-52
Headlamps....................................................3-17
Adaptive Forward Lighting System.................3-19
Bulb Replacement.......................................5-55Headlamps (cont.)
Daytime Running Lamps...............................3-18
Flash-to-Pass............................................... 3-9
Front Turn Signal and Fog Lamps..................5-56
Halogen Bulbs............................................5-55
High Intensity Discharge (HID) Lighting...........5-55
High/Low Beam Changer................................ 3-8
On Reminder..............................................3-17
Washer......................................................3-13
Wiper Activated...........................................3-17
Heated Seats................................................... 1-6
Heater...........................................................3-24
Engine Coolant...........................................2-37
Highbeam On Light.........................................3-47
High-Speed Operation, Tires.............................5-68
Highway Hypnosis...........................................4-16
Hill and Mountain Roads..................................4-16
Hood
Checking Things Under................................5-12
Release.....................................................5-12
Horn ............................................................... 3-6
How to Wear Safety Belts Properly...................1-17
Hydraulic Clutch.............................................5-27
6