2004 BUICK RANDEZVOUS engine overheat

How to Add Coolant to the Coolant
Recovery Tank
If you have not found a problem yet, but the coolant
level is not at or above the full cold mark, add a 50/50
mixture ofclean, drinkable waterand DEX-COOL
®
engine coolant at the coolant recovery tank. SeeEngine
Coolant on page 5-23for more information.
{CAUTION:
Adding only plain water to your cooling
system can be dangerous. Plain water, or
some other liquid such as alcohol, can boil
before the proper coolant mixture will. Your
vehicle’s coolant warning system is set for the
proper coolant mixture. With plain water or the
wrong mixture, your engine could get too hot
but you would not get the overheat warning.
Your engine could catch re and you or others
could be burned. Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
®coolant.Notice:In cold weather, water can freeze and crack
the engine, radiator, heater core and other parts.
Use the recommended coolant and the proper
coolant mixture.
{CAUTION:
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol
and it will burn if the engine parts are hot
enough. Do not spill coolant on a hot engine.
5-31

How to Add Coolant to the Radiator
Notice:Your engine has a specic radiator
ll procedure. Failure to follow this procedure could
cause your engine to overheat and be severely
damaged.
1. You can remove the radiator pressure cap when
the cooling system, including the radiator pressure
cap and upper radiator hose, is no longer hot.
Turn the pressure cap slowly counterclockwise until
it rst stops. Do not press down while turning the
pressure cap.If you hear a hiss, wait for that to stop. A hiss
means there is still some pressure left.
2. Then keep turning the pressure cap, but now push
down as you turn it. Remove the pressure cap.
{CAUTION:
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol
and it will burn if the engine parts are hot
enough. Do not spill coolant on a hot engine.
5-33

Engine (cont.)
Drive Belt Routing.......................................6-13
Engine Compartment Overview......................5-12
Exhaust.....................................................2-30
Oil .............................................................5-14
Overheating................................................5-26
Starting......................................................2-21
Engine Oil Additives........................................5-17
Engine Specications.....................................5-116
Entering Programming Mode............................3-64
Entertainment System
Cleaning Your DVD Player..........................3-131
DVD Distortion..........................................3-129
Entry Lighting.................................................3-18
Erasing HomeLink
®Buttons..............................2-38
Event Data Records (EDR)..............................7-10
Exit Lighting...................................................3-19
Exiting Programming Mode...............................3-72
Express-Down Window....................................2-14
Extender, Safety Belt.......................................1-46
Exterior Lamps...............................................3-14
F
Filter
Engine Air Cleaner......................................5-19
Finding a Program Type (PTY)
Station (RDS and XM™).............3-77, 3-89, 3-101
Finding a Station............................3-75, 3-87, 3-99
Finish Care..................................................5-103
Finish Damage.............................................5-105
Flash-to-Pass................................................... 3-9
Flat Tire........................................................5-76
Flat Tire, Changing.........................................5-77
Floor Console Fuse Block..............................5-110
Fluid
Automatic Transaxle.....................................5-21
Power Steering...........................................5-36
Windshield Washer......................................5-37
FM Stereo....................................................3-130
Fog Lamps....................................................3-16
Folding or Reclining the Seatbacks.............1-9, 1-14
Folding the Seatback.......................................1-18
6

N
Navigation/Radio System................................3-112
New Vehicle Break-In......................................2-19
Normal Maintenance Replacement Parts............6-13
O
Odometer......................................................3-41
Off-Road Recovery..........................................4-15
Oil
Engine.......................................................5-14
Pressure Message.......................................3-52
Older Children, Restraints................................1-47
Online Owner Center........................................ 7-4
OnStar
®Personal Calling.................................2-34
OnStar®Services............................................2-34
OnStar®System.............................................2-33
OnStar®Virtual Advisor....................................2-34
Operation..............................................3-29, 3-32
Operation Tips................................................3-38
Other Warning Devices...................................... 3-7
Outlet Adjustment............................................3-38
Outside
Convex Mirror.............................................2-33
Curb View Assist Mirror................................2-32Outside (cont.)
Heated Mirrors............................................2-33
Power Mirror...............................................2-32
Overhead Console..........................................2-39
Overheated Engine Protection Operating Mode . . . 5-26
Overseas – Customer Assistance........................ 7-5
Owner Checks and Services.............................. 6-8
Owners, Canadian............................................... ii
Owner’s Information........................................7-12
P
Park Aid........................................................3-24
Park Lamp Warning Message...........................3-59
Park (P)
Shifting Into................................................2-29
Shifting Out of............................................2-29
Parking
Assist........................................................3-24
Brake........................................................2-26
Over Things That Burn.................................2-30
Parking on Hills..............................................4-49
Passing.................................................4-49, 4-48
PASS-Key
®III ................................................2-17
PASS-Key®III Operation..................................2-17
PASS-Key®III Security Message.......................3-55
11