2008 Lexus ES 350 Owners Manual - Page 441

5-2. Steps to take in an emergency If the vehicle battery is discharged The following procedures may be used to start the engine if the vehicle's battery is discharged. You can call your Lexus dealer or qualified repair shop. If you have a set of jumper (or booster) cables and a second vehicle with a 12-volt battery, you can jump start your Lexus following the steps below. STEP 1 Remove the cover. STEP 2 Connecting the jumper cables. If required, remove all vent plugs from the booster battery. Lay a cloth over the open vents on the booster battery. (This helps reduce the explosion hazard, personal injuries and burns.) Positive (+) battery terminal on your vehicle Positive (+) battery terminal on the second vehicle Negative (-) battery terminal on the second vehicle Connect the jumper cable to ground on your vehicle as shown in the illustration. 402