here is some brief directions from gm:
Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle Removal Procedure
J 1859-A Steering Wheel Puller
Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.
Lower the column cover.
Move the multifunction switch into the position.
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
Tighten Tighten the screws to 6 N·m (53 lb in).
Tighten Tighten the nuts to 30 N·m (22 lb ft).
Tighten Tighten the screws to 1.4 N·m (12 lb in).
Tighten Tighten the steering wheel nut to 40 N·m (29 lb ft).
Steering Wheel Replacement Removal Procedure
Tighten Tighten the nut to 40 N·m (30 lb ft).
© 2009 General Motors Corporation. All rights reserved.