All-Wheel Drive

Transfer Case

When to Check and Change Lubricant

The transfer case is filled with oil during manufacture, which then does not require changing. It is not necessary to regularly check the transfer case fluid unless there is a leak suspected or an unusual noise is heard. A fluid loss could indicate a problem. It is recommended to have the transfer case serviced at your dealer.

    See also:

    XLR-V
    A performance-packed V edition of the XLR, fitted with a supercharged 4.4-liter V-8 that develops 443 hp at 6,400 rpm and 414 pounds-feet of torque at 3,600 rpm, goes on sale for 2006. A new six-s ...

    Cellular and GPS Antennas
    Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception. Cellular reception is required for OnStar to send remote signals to the vehicle. ...

    Footnotes — Maintenance Schedule Additional Required Services — Normal
    a) Vehicles with different size front and rear tires do not have tire rotation. See Tire Rotation. b) Or every two years, whichever comes first. More frequent replacement may be needed if the ...