GM Service Manual Online
For 1990-2009 cars only

Battery Replacement LAT

Removal Procedure

Caution: Do not tip the battery over a 45 degree angle or acid could spill causing serious personal injury.

  1. Remove the generator battery control module cover. Refer to Generator Control Module Cover Replacement .
  2. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .

  3. Object Number: 2030262  Size: SH
  4. Remove the ECM bracket bolts (2), nuts (1) and ECM bracket.
  5. Set the ECM assembly aside.

  6. Object Number: 1999419  Size: SH
  7. Loosen the positive battery cable terminal nut (1) and secure the battery positive cable (2) out of the way.

  8. Object Number: 1999432  Size: SH
  9. Remove the battery hold down nuts (1) and the battery hold down retainer bracket (2).
  10. Remove the battery from the vehicle.

Installation Procedure

Caution: Do not tip the battery over a 45 degree angle or acid could spill causing serious personal injury.


    Object Number: 1999432  Size: SH
  1. Install the battery to the vehicle.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the battery hold down nuts (1) and the battery hold down retainer bracket (2).
  4. Tighten
    Tighten the nut to 10 N·m (89 lb in).


    Object Number: 1999419  Size: SH
  5. Install the positive battery cable terminal nut (1).
  6. Tighten
    Tighten the nuts to 5 N·m (45 lb in).


    Object Number: 2030262  Size: SH
  7. Install the ECM bracket, bolts (2) and nuts (1).
  8. Tighten
    Tighten the nuts and bolts to 10 N·m (89 lb in).

  9. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  10. Install the generator battery control module cover. Refer to Generator Control Module Cover Replacement .

Battery Replacement Without LAT

Removal Procedure

  1. Disconnect the negative battery cable . Refer to Battery Negative Cable Disconnection and Connection

  2. Object Number: 2026256  Size: SH
  3. Depress the tab (1) retaining the engine control Module (2).
  4. Slide the engine control module (2) in order to disengage the engine control module bracket from the battery upper cover (3).
  5. Position the engine control module assembly (2) to the side. Do not disconnect the wiring harness.

  6. Object Number: 2026257  Size: SH
  7. Release the two tabs (2).
  8. Remove the battery upper (1) cover from the battery lower cover (3).

  9. Object Number: 2026268  Size: SH
  10. Loosen the positive battery cable retaining nut (2).
  11. Remove the positive battery cable from the battery (1).

  12. Object Number: 2026270  Size: SH
  13. Remove the battery retaining bolt (2) and retainer block (3).
  14. Remove the battery (1) from the vehicle.

Installation Procedure


    Object Number: 2026270  Size: SH
  1. Position the battery (1) into the vehicle.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the battery retaining bolt (2) and retainer block (3).
  4. Tighten
    Tighten the bolt to 10 N·m (89 lb in).


    Object Number: 2026268  Size: SH
  5. Install the positive battery cable to the battery (1).
  6. Tighten the positive battery cable retaining nut (2).
  7. Tighten
    Tighten the nut 5 N·m (45 lb in).


    Object Number: 2026257  Size: SH
  8. Install the battery upper (1) cover to the battery lower cover (3).
  9. Ensure that the two retaining tabs (2) are securely latched.

  10. Object Number: 2026256  Size: SH
  11. Slide the engine control module assembly (2) onto the battery upper cover (3).
  12. Ensure that the tab (1) retaining the engine control Module (2) is securely latched.
  13. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection

Removal Procedure

  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection

  2. Object Number: 2026256  Size: SH
  3. Depress the tab (1) retaining the engine control Module (2).
  4. Slide the engine control module (2) in order to disengage the engine control module bracket from the battery upper cover (3).
  5. Position the engine control module assembly (2) to the side. Do not disconnect the wiring harness.

  6. Object Number: 2026257  Size: SH
  7. Release the two tabs (2).
  8. Remove the battery upper (1) cover from the battery lower cover (3).

  9. Object Number: 2026268  Size: SH
  10. Loosen the positive battery cable retaining nut (2).
  11. Remove the positive battery cable from the battery (1).

  12. Object Number: 2026270  Size: SH
  13. Remove the battery retaining bolt (2) and retainer block (3).
  14. Remove the battery (1) from the vehicle.

Installation Procedure


    Object Number: 2026270  Size: SH
  1. Position the battery (1) into the vehicle.
  2. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the battery retaining bolt (2) and retainer block (3) and tighten to 10 N·m (89 lb in).

  4. Object Number: 2026268  Size: SH
  5. Install the positive battery cable to the battery (1).
  6. Tighten the positive battery cable retaining nut (2) to 5 N·m (45 lb in)..

  7. Object Number: 2026257  Size: SH
  8. Install the battery upper (1) cover to the battery lower cover (3).
  9. Ensure that the two retaining tabs (2) are securely latched.

  10. Object Number: 2026256  Size: SH
  11. Slide the engine control module assembly (2) onto the battery upper cover (3).
  12. Ensure that the tab (1) retaining the engine control Module (2) is securely latched.
  13. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection