radiator cap GMC ENVOY 2004 User Guide

(c)Visually inspect hoses and have them replaced if they
are cracked, swollen or deteriorated. Inspect all pipes,
ttings and clamps; replace with genuine GM parts as
needed. To help ensure proper operation, a pressure test
of the cooling system and pressure cap and cleaning the
outside of the radiator and air conditioning condenser is
recommended at least once a year.
(d)Visually inspect wiper blades for wear or cracking.
Replace blade inserts that appear worn or damaged
or that streak or miss areas of the windshield.
(e)Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors and anchorages
are working properly. Look for any other loose or
damaged safety belt system parts. If you see anything
that might keep a safety belt system from doing its
job, have it repaired. Have any torn or frayed safety belts
replaced. Also look for any opened or broken air bag
coverings, and have them repaired or replaced. (The air
bag system does not need regular maintenance.)
(f)Lubricate all key lock cylinders, hood latch assembly,
secondary latch, pivots, spring anchor, release pawl,
rear compartment hinges, outer liftgate handle pivot
points, rear door detent link, roller mechanism, liftgate
handle pivot points, latch bolt, fuel door hinge, cargo
door hinge, locks and folding seat hardware. More
frequent lubrication may be required when exposed to a
corrosive environment. Applying silicone grease on
weatherstrips with a clean cloth will make them
last longer, seal better and not stick or squeak.(g)Add uid as needed. A uid loss could indicate a
problem; repair as needed. Check vent hose at transfer
case for kinks and proper installation.
(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. See Engine
Coolant on page 5-25for 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.
6-8

R
Radiator Pressure Cap....................................5-27
Radio Data System (RDS)...............3-64, 3-76, 3-90
Radio Messages.....................................3-70, 3-81
Radios..........................................................3-63
Care of Your Cassette Tape Player...............3-118
Care of Your CD and DVD Player................3-119
Care of Your CDs and DVDs.......................3-119
Navigation/Radio System.............................3-103
Radio Personalization.................................3-115
Radio with Cassette and CD.........................3-75
Radio with CD............................................3-64
Radio with Six-Disc CD................................3-90
Rear Seat Audio........................................3-114
Setting the Time..........................................3-63
Theft-Deterrent..........................................3-116
Understanding Reception............................3-117
Rainsense™ Wipers........................................3-10
RDS Messages..............................3-69, 3-80, 3-94
Reading Lamps..............................................3-18
REAR ACCESS OPEN....................................3-61
Rear Axle......................................................5-49
Locking......................................................4-10
Rear Climate Control System............................3-28
Rear Compartment Storage Panel/Cover............2-48Rear Door Security Locks................................2-13
Rear Floor Storage Lid....................................2-50
Rear Safety Belt Comfort Guides......................1-25
Rear Seat Audio (RSA)..................................3-114
Rear Seat Entertainment System.....................3-104
Rear Seat Operation......................................... 1-5
Rear Seat Passenger Positions.........................1-22
Rear Seat Passengers, Safety Belts..................1-22
Rear Seats (Envoy XL)..................................... 1-7
Rear Storage Area..........................................2-48
Rear Underseat Fuse Block............................5-109
Rear Window Defogger............................3-22, 3-27
Rearview Mirror, Automatic Dimming with
OnStar
®and Compass.................................2-36
Reclining Seatbacks, Power............................... 1-4
Recommended Fluids and Lubricants.................6-12
Recreational Vehicle Towing.............................4-44
Reduced Engine Power Light............................3-46
Remote Control.............................................3-107
Remote Keyless Entry System............................ 2-5
Remote Keyless Entry System, Operation............ 2-6
Removing the Flat Tire and
Installing the Spare Tire................................5-83
Removing the Spare Tire and Tools...................5-77
Replacement Bulbs.........................................5-54
Replacing Brake System Parts..........................5-42
12