See also:

Brakes
Brakes stop the vehicle and are crucial to safe driving. • Signs of brake wear may include chirping, grinding, or squealing noises, or difficulty stopping. • Trained dealer technicians have acce ...

Add-on Electrical Equipment
The OnStar system is integrated into the electrical architecture of the vehicle. Do not add any electrical equipment. See Add-On Electrical Equipment on page 9‑64. Added electrical equipment ...

When to Check Lubricant
It is not necessary to regularly check rear axle fluid unless a leak is suspected or an unusual noise is heard. A fluid loss could indicate a problem. Have it inspected and repaired. All axle assembl ...