GM 24043694 Battery Assembly, High Vltg

Removal: 1. Park on level ground, place the vehicle in park, remove the key/fob, wear eye protection and insulated gloves, and remove metal jewelry. 2. Disable vehicle electrical systems by following the manufacturer's general shut-down practice (leave accessories off and ensure the vehicle is fully powered down). 3. Disconnect the low-voltage (12V) battery first: open access, remove the negative (ground) terminal before the positive, and isolate terminals with non-conductive covers. 4. For high-voltage systems, follow the vehicle's service shutdown sequence: locate and remove the high-voltage service disconnect or insulation plug if fitted, noting this step varies by design. 5. Allow the high-voltage system capacitors to de-energize for the time recommended by the manufacturer (commonly several minutes). 6. Identify and label electrical connectors and harnesses; disconnect low-voltage control connectors and any accessible high-voltage connectors (orange-colored) only after the HV system is de-energized. 7. If the battery pack is coolant-cooled, drain or isolate the cooling circuit per general fluid-handling practice and cap lines to prevent contamination. 8. Support the battery pack with appropriate lifting equipment; remove external covers, straps, and fasteners securing the pack without assuming specific fastener counts or locations. 9. Carefully lower and remove the pack, keeping it upright and avoiding impact, pinching, or metal-to-metal contact with high-voltage conductors. Installation: 1. Use appropriate lifting equipment and a clear path; position the replacement battery pack and align it without forcing components. 2. Install and snug mounting hardware by hand; do not apply arbitrary torque values-final tightening should follow manufacturer procedures or a qualified technician's guidance. 3. Reconnect any coolant lines and refill/bleed the cooling system per general coolant service practices if applicable. 4. Reconnect low-voltage control harnesses and then reconnect high-voltage connectors only after confirming the HV service disconnect is in the correct install position. 5. Reinstall covers, straps, and any protective shields so connectors and service points are accessible and secured. 6. Reinstall the high-voltage service disconnect or insulation plug to re-enable the HV system according to the vehicle's design. 7. Reconnect the 12V battery: attach the positive terminal first, then the negative, and ensure terminals are clean and secured. 8. Power up the vehicle and observe for warning lights, unusual noises, or leaks; use an OBD/scan tool to check for diagnostic trouble codes and clear as required by proper diagnostic procedure. 9. Perform a basic functional check of charging/drive systems and verify the cooling system is at proper level and leak-free before returning the vehicle to service. 10. Repair tip: handle battery packs with at least two people or mechanical lift, keep tools insulated, label connectors during disassembly, and use dielectric protection on low-voltage terminals.