I keep having to replace my battery

I had the same model same battery drain issue many times over the last two years. It appeared to occur only at super cold days like below freezing temp. The battery seems fine as I have had the same battery for two years. Frustrated at the dealer refusing to acknowledging the draining issue.

Ja08016 and Dashan - I had the same problem with a 2007 RX 350. We went through about 4 new batteries and 1/2 a dozen trips to the dealer to attempt figure out why the battery would go dead in a week in the Summer and within days in the Winter. A root cause - never found. THEN... one day the sliding cover that covers the rear view mirror button got jammed and would not open fully. Why? We had our local shop fix the door, only to find that a GPS unit had been Velcro'd underneath the dash, and in years it the Velcro had come loose - the GPS unit jamming the rear view mirror sliding door. It was the GPS unit - always on 24/7 that was draining the battery all those years. We had acquired a pre-owned FLEET car that had had at GPS Tracking box in it. Constant battery drain. Now the black GPS box has been removed. Clearly, there is NO battery drain at all. For 4-5 years we growled at Lexus, thinking there was some sub-standard, defective, battery sucking computer or electrical feature that was the cause of the dead battery. Buzzz, wrong. It was the Fleet GPS installation. So if by chance you have a pre-owned vehicle, make sure it's not a FLEET car or one that has had a GPS or other hidden battery sucking device installed in it.

You am have the same problem with 2014 Lexus. The battery keep going dead. Texas dealership can not find the problem. Battery been replaced twice and some electronics piece also replace. New battery is from Lexus and is dead in two months. They want me to install an electric hookup in my garage ai connect to my battery at night. And I have to pay for the hookup. No way

I am from NJ, I have Lexus 300 ES 2014 car. My both car keys battery keep draining. I already replaced three times. It won’t lost for a week. Taking next week to the dealer. ( could not take it before because of corona) this is real manufacturer defect. Hope they won’t charge me.

I have a RX 350 and a rav 4. Same issues fix for RX 350 go to page 148 of owners manual tells how to disable communication between key fob and vehicle- which over a number of days can kill battery. Fo my older rav 4 page 107 of owners manul both in index under battery saving function under electronic key.

What drains my 2007 Lexus RX 350 battery?

Same thing happening to my 2020 es350. We are on our second battery. Tustin Lexus IS blaming us for it and refused to cover the replacement and on top of that they want to charge over $1k blaming my husband for trying to jumó the car.