To change the battery in your Lexus ES 350, follow these general steps:
Preparation: Ensure that the engine is turned off and the key is removed from the ignition. Open the hood of your vehicle and secure it using the hood prop rod.
Locate the battery: In most Lexus ES 350 models, the battery is located in the engine compartment, usually on the passenger side. It is housed in a rectangular battery tray.
Remove the battery cover: If there is a plastic cover over the battery, gently lift it or remove any retaining clips to access the battery.
Disconnect the negative (black) terminal: Start by disconnecting the negative terminal. Loosen the nut on the negative terminal clamp using a wrench or socket, then carefully lift the clamp off the terminal. Insulate the terminal with a non-conductive material, like electrical tape, to prevent accidental contact.
Disconnect the positive (red) terminal: Repeat the same process for the positive terminal. Loosen the nut on the positive terminal clamp, lift it off the terminal, and insulate the terminal.
Remove the battery: Look for any hold-down brackets or straps securing the battery to the tray. Remove them if present. Lift the battery straight up and out of the tray, taking care not to tip it or spill any acid.
Clean the battery tray: Use a clean cloth or battery cleaner to wipe any debris or corrosion from the battery tray. Ensure it is clean and dry before proceeding.
Install the new battery: Take the new battery and place it in the tray, making sure it is aligned correctly. Secure it with any hold-down brackets or straps that were previously removed.
Connect the positive (red) terminal: Slide the positive terminal clamp over the positive battery terminal. Tighten the nut securely using a wrench or socket.
Connect the negative (black) terminal: Slide the negative terminal clamp over the negative battery terminal. Tighten the nut securely.
Remove insulation and check connections: Remove the insulating material from the battery terminals. Ensure that both terminals are securely connected and free from any looseness.
Replace the battery cover: If there was a plastic battery cover, reattach it and secure any retaining clips.
Close the hood: Lower the hood of your vehicle securely and ensure that it is fully closed.
Remember to follow any specific instructions provided in your vehicle's owner manual as the exact procedure may vary slightly between different Lexus ES 350 models. If you're unsure or uncomfortable with changing the battery yourself, it's recommended to consult a professional mechanic or authorized Lexus service center for assistance.