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Lexus Jump Start Dead Battery

A dead battery of your Lexus can ruin your day and leave you stranded. This guide will provide step-by-step instructions on how to jump-start a Lexus. 

Lexus Jump Start Dead Battery


What you will need


Follow the below-mentioned steps to jump-start your Lexus:

  1. Remove the emergency metal key from the keyfob and use it to open the driver's door to unlock lexus dead battery Some Lexus cars have the keyhole on the driver's door covered. Insert the metal key in the small slot below the door handle and pry out the cover. lexus driver door key missing


  2. Park the vehicle that you are using to jump-start next to your Lexus. Keep the vehicles close in such a way that the jumper cables can reach both batteries. Vehicles should not touch each other.
  3. Ensure that the ignition is off on both vehicles. lexus won't start


  4. Pull the hood release under the dashboard and open hood to jump start lexus
  5.  Go to the front of the car and slide your hand under the hood. You need to be near the Lexus logo. open lexus hood


  6. Locate the battery on your Lexus. Typically in the engine bay, driver's side. If the battery is covered with a plastic cover, remove it to access the battery. 
    2010 Lexus ES350 Battery
    2010 Lexus ES350 Battery
    2004 Lexus RX330 Battery
    2004 Lexus RX330 Battery
    2009 Lexus LS460 Battery
    2009 Lexus LS460 Battery
  7. Connect the red clamp to the battery positive (+) terminal. 
    2010 Lexus ES350 Positive Terminal
    2010 Lexus ES350 Positive Terminal


  8. Attach the other red clamp to the car's positive terminal (+) with a good battery. Connect the black clamp to the negative terminal (-) of the car with a good battery. connect jumper cables
  9. Connect the other black clamp on the unpainted bolt or the engine block. Engine block or strut tower bolts work best. Keep the clamp at least a foot away from the dead battery.jump start carIt is not recommended to connect the black clamp directly to the negative (-) terminal of the dead battery. 
  10. Start the vehicle's engine with a good battery and run it up to 1500 rpm for around five minutes. 
  11. Start your Lexus. If the vehicle is equipped with Start/Stop button, press it with the keyfob. jump start lexus


  12. As soon as your Lexus starts, remove the attached cables in reverse order. Drive the vehicle for around 30 minutes before you turn off the engine.

If your lights turn on, but you hear a click when you press Start, the battery in your Lexus needs to charge.

You need to take safety precautions before you start to jump-start your Lexus. Normally, the jumper cables have a set of clamps marked black and red. The red one should be used for positive and black marked for negative.

Your Lexus battery is usually marked with ‘+’ for positive and ‘–‘ for the negative terminal. If the battery is dirty, you might need to wipe off the grime to check for the signs.

Locate the jumper cables and ensure that the cables are in good condition. It is advisable to keep the jumper cables in your car along with a flashlight, first aid kit, and a jacket. 

Frequently Asked Questions

Can I start my Lexus with a portable jumper box?

  • Yes. You can use the portable jumper box instead of another car's battery to jump-start your Lexus. 

What safety precautions do I need to follow?

  • Ensure that the clamps of the cables do not touch each other. 
  • Additionally, do not complete the circuit by attaching the black clamp to the dead battery's negative terminal. This may result in a fire. 
  • What if my car does not turn on even after I jump-start it?
    • Check all the clamps to make sure they are making good contact. 
    • Allow the dead battery to charge for up to 10 minutes. 
    • Your car might have some other problem if it is not getting started. Try to do some troubleshooting or contact the repair shop.

Do I need to replace the battery?

  • Even if you can start your car with a jump-start, get your car's battery checked to find out if it needs to be replaced.


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  • Charge the battery fully then test it with a battery tester. For more help follow this guide. Check the battery date sticker on the top or side of battery. Most car batteries last between three to five years.
  • During charging and jump-starting, explosive gases can escape from the battery. There is a risk of an explosion. Particularly avoid fire, open flames, creating sparks, and smoking. Ensure there is sufficient ventilation while charging and jump-starting. Do not lean over a battery.
  • Make sure that the positive terminal of a connected battery does not come into contact with vehicle parts. Never place metal objects or tools on a battery. It is important that you observe the described order of the battery terminals when connecting and disconnecting a battery. 
  • When jump-starting, make sure that the battery poles with identical polarity are connected. It is particularly important to observe the described order when connecting and disconnecting the jumper cables. Never connect or disconnect the battery terminals while the engine is running
  • Make sure the jumper cables are not damaged or wires are exposed. 
  • The jumper cables should not contact the parts that can move when the engine is running, such as the V-belt pulley or the fan.

Frequently Asked Questions

How to get into the trunk, if you have a dead battery

  • Use the emergency key blade found inside your key fob to manually unlock the trunk. 

How to charge a dead battery

  • By trickle charging a dead battery, you have a better chance of bringing the battery back to life. Otherwise, your battery may no longer hold a proper charge. 
  • Use the OEM 12 Volt Battery Charger or even the cheaper Black+Decker BBM3B 12V Battery Charger Maintainer, which works just as well.
  • It will take at least 24 hours to bring a completely dead battery back to life. You are only providing 2 Amperes to the battery, which is a slow charge but ensures no damage is caused to the battery cells. 

My car battery keeps dying

  • If your battery keeps on dying or is not holding a proper charge, it could be due to any of the following:  
    • Battery age / old battery
    • Corroded or loose battery connections
    • Parasitic current drains in the electrical system.

Safety Tips

Auto Repair Safety Notes