2005 BUICK TERRAZA oil temperature

Overheated Engine Protection
Operating Mode
This emergency operating mode allows your vehicle to
be driven to a safe place in an emergency situation.
If an overheated engine condition exists, an overheat
protection mode which alternates ring groups of
cylinders helps prevent engine damage. In this mode,
you will notice a signicant loss in power and engine
performance. The temperature gage will indicate
an overheat condition exists. Driving extended miles
(km) and/or towing a trailer in the overheat protection
mode should be avoided.
Notice:After driving in the overheated engine
protection operating mode, to avoid engine damage,
allow the engine to cool before attempting any
repair. The engine oil will be severely degraded.
Repair the cause of coolant loss, change the oil
and reset the oil life system. SeeEngine Oil
on page 5-13.
Cooling System
When you decide it is safe to lift the hood, here is what
you will see:
A. Radiator Pressure Cap
B. Electric Engine Cooling Fans
C. Coolant Recovery Tank
5-26

(g)If you drive regularly under dusty conditions, inspect
the lter at each engine oil change.
(h)Change automatic transaxle 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. See Engine
Coolant on page 5-21 for what to use. Inspect hoses.
Clean radiator, condenser, pressure cap and ller neck.
Pressure test the cooling system and pressure cap.
(j)Check system for interference or binding and
for damaged or missing parts. Replace parts as needed.
Replace any components that have high effort or
excessive wear. Do not lubricate accelerator or cruise
control cables.
(k)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.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 6-11.
At Each Fuel Fill
It is important to perform these underhood checks at
each fuel ll.
Engine Oil Level Check
Check the engine oil level and add the proper oil if
necessary. SeeEngine Oil on page 5-13for further
details.
Notice:It is important to check your oil regularly
and keep it at the proper level. Failure to keep your
engine oil at the proper level can cause damage
to your engine not covered by your warranty.
6-8

Engine (cont.)
Check and Service Engine Soon Light............3-40
Coolant......................................................5-21
Coolant Heater............................................2-32
Coolant Temperature Gage...........................3-39
Engine Compartment Overview......................5-12
Exhaust.....................................................2-40
Oil .............................................................5-13
Oil Life System...........................................5-16
Overheated Protection Operating Mode...........5-26
Overheating................................................5-24
Starting......................................................2-31
Entry Lighting.................................................3-17
Event Data Recorders (EDR)............................. 7-9
Exit Lighting...................................................3-18
Extender, Safety Belt.......................................1-34
Exterior Lamps...............................................3-14
F
Filter
Engine Air Cleaner......................................5-17
Finish Damage...............................................5-83
Fixed Mast Antenna.......................................3-114
Flash-to-Pass................................................... 3-8Flat Tire........................................................5-62
Flat Tire, Changing.........................................5-62
Flat Tire, Storing.............................................5-74
Fluid
Automatic Transaxle.....................................5-19
Power Steering...........................................5-32
Windshield Washer......................................5-32
Folding Tray...................................................2-51
Front Console Storage Area.............................2-50
Front Reading Lamps......................................3-19
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Filling a Portable Fuel Container....................5-10
Filling Your Tank........................................... 5-8
Fuels in Foreign Countries.............................. 5-7
Gage.........................................................3-44
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-5
Low Warning Light.......................................3-44
Fuses
Fuses and Circuit Breakers...........................5-87
Instrument Panel Fuse Block.........................5-88
Underhood Fuse Block.................................5-90
Windshield Wiper.........................................5-87
5

Loss of Control...............................................4-16
Low Fuel Warning Light...................................3-44
Luggage Carrier..............................................2-51
M
Maintenance Schedule
Additional Required Services........................... 6-6
At Each Fuel Fill........................................... 6-8
At Least Once a Month.................................. 6-9
At Least Once a Year.................................... 6-9
Introduction.................................................. 6-2
Maintenance Footnotes.................................. 6-7
Maintenance Record....................................6-14
Maintenance Requirements............................. 6-2
Normal Maintenance Replacement Parts.........6-13
Owner Checks and Services........................... 6-8
Recommended Fluids and Lubricants.............6-11
Scheduled Maintenance................................. 6-4
Using.......................................................... 6-3
Your Vehicle and the Environment................... 6-2
Malfunction Indicator Light................................3-40
Manual Passenger Seat.................................... 1-3
Memory Seat.................................................2-54
Message
DIC Warnings and Messages........................3-51Mirrors
Manual Rearview Mirror................................2-41
Manual Rearview Mirror with Compass
and Temperature......................................3-34
Outside Convex Mirror.................................2-42
Outside Heated Mirrors................................2-42
Outside Power Mirrors..................................2-41
MyGMLink.com................................................ 7-3
N
Navigation/Radio System..................................3-96
New Vehicle Break-In......................................2-30
Normal Maintenance Replacement Parts............6-13
O
Odometer......................................................3-33
Odometer, Trip...............................................3-33
Off-Road Recovery..........................................4-14
Oil
Engine.......................................................5-13
Pressure Light.............................................3-42
Oil, Engine Oil Life System..............................5-16
Older Children, Restraints................................1-34
Online Owner Center........................................ 7-3
8