Sierra 2500 Denali 2WD V8-6.0L (2011)
procedure. Other vehicle systems may also be affected by not allowing a 1 minute duration for power-down.
1. Turn off all lamps and accessories.
2. Turn the ignition OFF without pausing at ACCESSORY, and remove the ignition key.
3. Wait for at least 1 minute before disconnecting the negative battery cable from the battery, to allow for proper power-down procedures of certain
vehicle systems.
4. Reposition the negative battery cable insulating cover (5) from the negative battery terminal.
5. Rotate the lever lock (4) counterclockwise in order to disconnect the negative battery cable from the battery.
Connect Procedure
Note: Clean any existing corrosion from the battery terminal and the battery cable.
1. Install the negative battery cable (6) to the battery.
2. Rotate the lever lock (4) clockwise until an audible click is heard in order to connect the negative battery cable to the battery.
3. Position the negative battery cable insulating cover (5) over the negative terminal.
