Removal Procedure

Record all of the radio station presets.
Ensure that all lamps and accessories are turned off.
Turn the ignition OFF and remove the ignition key.
Open the rear compartment lid.
Rear Compartment Floor Panel Trim Replacement » Remove
Rear Compartment Floor Panel Trim Support Replacement » Remove
Open the right rear door.
Fold the rear seat back cushion forward to get a better access to the battery.
Battery Negative Cable Disconnection and Connection » Disconnect
With start/stop system use the following steps:
1. Install a open-end spanner (1) to counter-hold the battery sensor as shown in the graphic.
  
  Fig 1: Battery Negative Cable Nut
  Courtesy of GENERAL MOTORS COMPANY
  
  NOTE: Use a counterholder to prevent the battery sensor from damage.
2. Remove the battery negative cable nut (2).
3. Battery Negative Cable (3)» Disconnect
4. Battery Negative Cable Clip (1)» Unclip [2x]
  
  Fig 2: Battery Negative Cable Clips
  Courtesy of GENERAL MOTORS COMPANY
Without start/stop system use the following steps:
1. Loosen the battery negative pole clamp nut (2).
  
  Fig 3: Battery Negative Pole Clamp And Nut
  Courtesy of GENERAL MOTORS COMPANY
2. Disconnect the battery negative pole clamp (1).
3. Remove body extension current sensor wiring harness to battery negative cable bolt (1).
  
  Fig 4: Body Extension Current Sensor Wiring Harness To Battery Negative Cable Bolt
  Courtesy of GENERAL MOTORS COMPANY
4. Disconnect the battery current sensor connector. (2)
  
  Fig 5: Battery Current Sensor Connector
  Courtesy of GENERAL MOTORS COMPANY
5. Battery Negative Cable Clip (1)» Unclip [2x]
6. Remove the battery negative cable terminal cover (1).
  
  Fig 6: Battery Negative Cable Terminal Cover And Battery Current Sensor
  Courtesy of GENERAL MOTORS COMPANY
7. Battery Current Sensor (2)» Remove