2003 BUICK RANDEZVOUS adding oil

Service............................................................5-3
Doing Your Own Service Work.........................5-3
Adding Equipment to the Outside of
Your Vehicle..............................................5-4
Fuel................................................................5-4
Gasoline Octane............................................5-4
Gasoline Specifications....................................5-5
California Fuel...............................................5-5
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-6
Filling Your Tank............................................5-6
Filling a Portable Fuel Container.......................5-8
Checking Things Under
the Hood......................................................5-9
Hood Release................................................5-9
Engine Compartment Overview.......................5-10
Engine Oil...................................................5-11
Engine Air Cleaner/Filter................................5-15
Automatic Transaxle Fluid..............................5-17
Engine Coolant.............................................5-19
Radiator Pressure Cap..................................5-21
Engine Overheating.......................................5-22
Cooling System............................................5-24
Power Steering Fluid.....................................5-31Windshield Washer Fluid................................5-32
Brakes........................................................5-33
Battery........................................................5-36
Jump Starting...............................................5-36
All-Wheel Drive..............................................5-41
Bulb Replacement..........................................5-42
Halogen Bulbs..............................................5-43
Headlamps..................................................5-43
Front Turn Signal, Sidemarker and
Parking Lamps..........................................5-44
Taillamps, Turn Signal, and Stoplamps............5-45
Taillamps and Back-Up Lamps.......................5-45
Replacement Bulbs.......................................5-46
Windshield Wiper Blade Replacement..............5-47
Tires..............................................................5-48
Inflation -- Tire Pressure................................5-49
Check Tire Pressure System..........................5-49
Tire Inspection and Rotation...........................5-51
When It Is Time for New Tires
.......................5-52
Buying New Tires
.........................................5-53
Uniform Tire Quality Grading
..........................5-54
Wheel Alignment and Tire Balance
..................5-55
Wheel Replacement
......................................5-55
Section 5Service and Appearance Care
5-1
2003 - Rendezvous OM

Notice:We recommend you use onlyfluid labeled
DEXRON®-III, becausefluid with that label is
made especially for your automatic transmission.
Damage caused byfluid other than DEXRON
®-III is
not covered by your new vehicle warranty.
3. After addingfluid, recheck thefluid level as
described under“How to Check.”
4. When the correctfluid level is obtained, push the
dipstick back in all the way.
Engine Coolant
The cooling system in your vehicle isfilled with
DEX-COOL®engine coolant. This coolant is designed
to remain in your vehicle for 5 years or 150,000 miles
(240 000 km), whichever occursfirst, 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 5-22.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 messages and gages work as they
should.
Notice:When adding coolant, it is important that
you use only DEX-COOL
®(silicate-free) coolant.
If coolant other than DEX-COOL®is added to
the system, premature engine, heater core or
radiator corrosion may result. In addition, the engine
coolant will require change sooner -- at 30,000 miles
(50,000 km) or 24 months, whichever occursfirst.
Damage caused by the use of coolant other
than DEX-COOL
®is not covered by your new vehicle
warranty.
5-19
2003 - Rendezvous OM

What to Use
Use a mixture of one-halfclean, drinkable waterand
one-half DEX-COOL®coolant which won’t damage
aluminum parts. If you use this coolant mixture,
you don’t need to add anything else.
{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 wouldn’t get the overheat warning.
Your engine could catchfire and you or others
could be burned. Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
®coolant.
Notice:If you use an improper coolant mixture,
your engine could overheat and be badly damaged.
The repair cost wouldn’t be covered by your
warranty. Too much water in the mixture can freeze
and crack the engine, radiator, heater core and
other parts.If you have to add coolant more than four times a year,
have your dealer check your cooling system.
Notice:If you use the proper coolant, you don’t
have to add extra inhibitors or additives which claim
to improve the system. These can be harmful.
Checking Coolant
The engine coolant reservoir is located on the driver’s
side of the vehicle, above the engine air cleaner/filter.
SeeEngine Compartment Overview on page 5-10
for more information on location.
5-20
2003 - Rendezvous OM

How to Add Coolant to the Coolant
Recovery Tank
If you haven’t found a problem yet, but the coolant level
isn’t 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 5-19for 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 wouldn’t get the overheat warning.
Your engine could catchfire 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. Don’t spill coolant on a hot engine.
When the coolant in the coolant recovery tank is at or
above the FULL COLD mark, start your vehicle.
5-26
2003 - Rendezvous OM