Manual Gear Range Selection
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
This application does not utilize manual forward gear ranges.
Reverse
Perform the following test using a 10-15 percent throttle position.
- With the vehicle stopped, move the gear selector to REVERSE.
- Slowly accelerate the vehicle.
- Verify that there is no noticeable slip, noise or vibration.
Driver Shift Control (DSC)
Refer to the owner's manual for specific instructions on the type of DSC available in this application. Utilize the DSC to ensure that the transmission responds appropriately to driver's commands. The TCM will upshift automatically when maximum engine speed is achieved and will protect from any downshift which may cause excessive engine RPMs.