Express 4500 V8-6.0L (2010)
6. On models equipped with 4.8L, 5.3L or 6.0L engine, unclip the battery positive cable from the engine harness clip (1).
7. Unclip the battery positive cable from the engine harness retainer (2).
8. On all models, raise the vehicle. Refer to Lifting and Jacking the Vehicle (See: Maintenance/Vehicle Lifting/Service and Repair).
9. Disconnect the positive lead at the starter solenoid.