2008 Lexus GX 470 Owners Manual - Page 452

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 by following the steps below. STEP 1 STEP 2 Open the hood. 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 chance of explosion, personal injuries and burns.) Positive (+) battery terminal on your vehicle. Positive (+) battery terminal on the second vehicle. Negative (-) battery terminal on the second vehicle. Negative (-) battery terminal on your vehicle. STEP 3 Start the engine of the second vehicle. Increase the engine speed slightly and maintain at that level for approximately 5 minutes to recharge the 12 volt battery of your vehicle. STEP 4 Maintain the engine speed of the second vehicle and start your vehicle's engine. 5 When trouble arises 405