At Least Twice A Year; At Least Once A Year; Key Lock Cylinders Service; Wiper Blade Check - Buick 2004 Park Avenue Owner's Manual

At Least Twice a Year

Restraint System Check
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.)

Wiper Blade Check

Inspect wiper blades for wear or cracking. Replace
blade inserts that appear worn or damaged or that
streak or miss areas of the windshield. Also see
"Windshield Wiper and Wiper Blades" under Cleaning
the Outside of Your Vehicle on page 5-93.

Weatherstrip Lubrication

Silicone grease on weatherstrips will make them
last longer, seal better, and not stick or squeak.
Apply silicone grease with a clean cloth. During very
cold, damp weather more frequent application may be
required. See Part D: Recommended Fluids and
Lubricants on page 6-25.
6-20
Automatic Transaxle Check
Check the transaxle fluid level; add if needed. See
Automatic Transaxle Fluid on page 5-23. A fluid loss
may indicate a problem. Check the system and repair
if needed.

At Least Once a Year

Key Lock Cylinders Service

Lubricate the key lock cylinders with the lubricant
specified in Part D.

Body Lubrication Service

Lubricate all body door hinges. Also lubricate all hinges
and latches, including those for the hood, glove box
door and console door. Part D tells you what to
use. More frequent lubrication may be required when
exposed to a corrosive environment.