Yukon Denali 2WD V8-6.0L Hybrid (2010)
Negative: Service and Repair
Battery Negative Cable Disconnection and Connection
Battery Negative Cable Disconnection and Connection
Disconnect Procedure
Warning: Refer to Battery Disconnect Warning (See: Service Precautions).
Note: Do NOT disconnect the negative battery cable from the battery until a period of at least 1 minute after performing the following: Turning the
ignition to OFF, without pausing at ACCESSORY, and without applying the brake pedal. These steps are necessary to allow the brake system pressure
relief procedure to occur. Failure to follow these steps may result in warning lamps and/or DTCs being set pertaining to interruption of the pressure relief
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.