How to Jump Start a Acura RDX

1. Turn off audio, lights and other electric devices, switch off the engine, then open the hood.
2. Open the fuse box cover over your vehicle's 12-volt battery positive + terminal.
3. Connect the first jumper cable to your vehicle's battery + terminal, then its other end to the booster battery + terminal.
4. Connect the second jumper cable to the booster battery - terminal.
5. Connect the other end of the second cable to the engine mounting bolt shown, and nowhere else.
6. Start the assisting vehicle's engine and raise its RPM slightly, then try starting your engine.
7. After your engine starts, remove cables in order: your ground, booster - terminal, your battery + terminal, booster + terminal.

• Use a 12-volt booster battery only; if using a charger, select a voltage lower than 15-volt.
• If the engine turns over slowly, check that the cables have good metal-to-metal contact.
• Have your vehicle inspected by a nearby service station or a dealer afterward.

Source: 2026 Acura RDX owner's manual, PDF pages 666, 667. 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.