How to Jump Start a Buick Envision

1. Check that the other vehicle has a 12-volt battery with a negative ground system, and park the two vehicles so they do not touch.
2. Set the parking brake firmly, put the transmission in P (Park), turn the ignition off, and switch off lights and accessories in both vehicles.
3. Check that the jumper cables have no loose or missing insulation.
4. Connect one end of the red positive (+) cable to the discharged battery positive (+) terminal, then the other end to the good battery positive (+) terminal.
5. Connect one end of the black negative (–) cable to the good battery negative (–) terminal.
6. Connect the other end of the black negative (–) cable to the discharged battery negative (–) grounding point.
7. Start the engine of the vehicle with the good battery and run it at idle for at least four minutes.
8. Try to start the vehicle with the discharged battery; to remove the cables, reverse the connection steps in exact order.

• The discharged battery positive (+) terminal is under a cover on the driver side; remove the cover to expose it.
• If the vehicle will not start after a few tries, it probably needs service.
• After starting, let the disabled vehicle idle for several minutes once the cables are removed.

Source: 2026 Buick Envision owner's manual, PDF pages 273, 274, 275. Steps are summarized in our own words (AI-assisted, checked against the cited pages 2026-10-18). Other model years can differ; your manual has the final word.