GMC 2007 Automobile User Manual


 
Also look for any opened or broken airbag
coverings, and have them repaired or replaced.
(The airbag 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 and Wiper Blades on page 350.
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 396.
Manual Transaxle Check
It is not necessary to check the transaxle fluid
level. Check for leaks. A fluid leak is the only
reason for fluid loss. Have the system inspected
and repaired if needed.
Automatic Transaxle Check
Check the transaxle fluid level; add if needed. See
Automatic Transaxle Fluid on page 283. A fluid
loss may indicate a problem. Check the system
and repair if needed.
Hydraulic Clutch System Check
Check the fluid level in the brake/clutch reservoir.
See Hydraulic Clutch on page 286. A fluid loss
in this system could indicate a problem. Have the
system inspected and repaired at once.
At Least Once a Year
Key Lock Cylinders Service
Lubricate the key lock cylinders with the lubricant
specified in Part D.
390