GM Service Manual Online
For 1990-2009 cars only

If your vehicle is equipped with this feature, you will find a label on the headliner above the windshield or in another place near the driver that shows how to use it. Be sure to follow the directions carefully.

Use the following directions based on the type of shift control you have.


Object Number: 808267  Size: A3

The rear axle shift control switch for a manual transmission is located on the shift lever.

When the switch is up, the rear axle is in the high range. Push the switch down to change to low range.

The two-speed axle should be in low when you park the vehicle. You will need to engage the transmission, even move the vehicle a little, to be sure the axle is in the low range. Then apply the parking brake, shift into NEUTRAL and shut off the engine.

Also, always start the vehicle in motion with the two-speed axle in the low range. To shift up from low to high, do the following:

  1. Move the switch up for the high range.
  2. Disengage the clutch.
  3. After a brief pause, engage the clutch and then press down on the accelerator.

To shift down from high to low, do the following:

  1. Move the switch down to low.
  2. Release the accelerator and then quickly apply it again.