GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Optra - Mexico 🢒 Preface 🢒 Dangers, Warnings, and Cautions 🢒 Battery Negative Cable Disconnection and Connection

Removal Procedure

    Warning: 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.

  1. Record all preset and theft codes, (if equipped), from the radio.
  2. Turn the ignition switch to the OFF position.
  3. Verify that all the electrical components are OFF such as interior lights, all doors are closed, the underhood lamp , etc.
  4. Loosen the clamping bolt from the battery negative cable.
  5. Remove the battery negative cable from the battery.
  6. Position the battery negative cable away from any body ground.

Installation Procedure
  1. Verify that all the electrical components are OFF such as interior lights, all doors are closed, the underhood lamp , etc.
  2. Clean corrosion from the negative battery cable using a metal brush.
  3. Install the battery negative cable to the battery.

    4. Caution: Refer to Fastener Caution in the Preface section.

  4. Install the clamping bolt to the negative cable.

    5. Tighten
    Tighten the battery negative cable to 4.5 N·m (40 lb in).

  5. Reset the radio stations and the clock.