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Hybrid TechnologyUnique topics related to the 2010 - 2015 RX450H model hybrid drivetrain and other features/options found only on the RX450H. Please use the main forum for discussion about shared components with other third generation RX models.
The battery located in the rear corner on the driver side isn't holding enough of a charge to start the car. I can start it with a battery booster, but it failed testing at an Auto Zone. Anyway, it is a CCA355A (Panasonic). What would be the best approach to replace it besides the dealer who is asking $350 for the battery and another $60 for the labor. Auto Zone and O-Reilly both said they could not replace it because it requires some special computer to scan it?
The battery located in the rear corner on the driver side isn't holding enough of a charge to start the car. I can start it with a battery booster, but it failed testing at an Auto Zone. Anyway, it is a CCA 35-something (Panasonic). What would be the best route to replace it besides the dealer who is asking $350 for the battery and another $60 for the labor. Auto Zone and O-Reilly both said they could not replace it because it requires some special computer to scan it?
The part number is 2880031293 (I don't recall the site to look that up).
Last edited by Finalist0946; Dec 23, 2024 at 01:18 PM.
There is nothing special about the 12 volt battery in your car not sure why any auto parts store would be afraid to supply one, or tell you it's hard to replace.
Thats what Lexis said...did you see the computer screen with the blue message about it? This is what si scaring them away, not to mention they claim to not have that battery in stock. Hell, if I know what to buy I'll do it myself!
Try a Batteries Plus store online, or find an independent hybrid shop or Toyota specialist. It does take a little time to replace a battery in that location.
IT is a somewhat rare battery. When the 12 volt battery died on my Lexus hybrid HS250h, I just bought one from the dealer and replaced it myself in the parking lot. I was unable to find an aftermarket alternative.
You Just need a 10mm wrench for the cables and some pliers for the battery hold down if that takes a different size.
That is how battery sizes are designated. This battery is group 48. Every battery and auto parts store or repair shop knows what that means.
However this battery is vented because it sits inside the vehicle. Not every battery has a vent connection.
See this battery thread from the hybrid side forum and there is some good information starting withr post 282
Post 299 shows an aftermarket rig to make other batteries work, but you need to be a bit handy with doing your own work.
That is how battery sizes are designated. This battery is group 48. Every battery and auto parts store or repair shop knows what that means.
However this battery is vented because it sits inside the vehicle. Not every battery has a vent connection.
See this battery thread from the hybrid side forum and there is some good information starting withr post 282
Post 299 shows an aftermarket rig to make other batteries work, but you need to be a bit handy with doing your own work.
Picked up a Group 35 battery based on the thread and post 282+ that talk about it. So is a 48 close to the same size?
Other than the group the alphabet after that is important. That alphabet F/R designates the position of the terminals and if not followed the terminals will switch and during installation the cables may not reach or worse if connected blindly they will be reversed causing hosts of problems in Lexus. Swapped terminals is NOT a minor issue.
Back to the group: The group designates the size and current capability/capacity. The size is important for physical fitment. If taller then the terminals stick up higher and if shorter the hold-down may not work. The battery is heavy and it needs to be secured down.
As far is current/capacity issue, the hybrid is not demanding. There is a sweet spot that made Lexus engineers select the right battery. Over capacity is capable of more load but laws of physics require a more strain on the charging system.
Finally just make sure, terminals are in the proper position and physically it can fit. It would be nice if the venti tube is connected properly. If you deviate, the onus is on you,
Auto Zone and O-Reilly both said they could not replace it because it requires some special computer to scan it?
Most if not all BMW's require you to inform the car's computer that the battery was changed. BMW's have a very specific charging algorithm that won't work very well and your battery wont last that long if you don't let the car know you replaced the battery. I can't speak to a Lexus RX450 but perhaps that is what the guys at Autozone are referring to, or something similar.
The Everstart (Walmart) 35 dropped right into place - it was the same exact size as the Panasonic that died. attached terminals and vent tube - the car flashed a brief message that it was updating something, and then Wala! Everything back to normal and even the clock didn't need to be reset
Battery for 2013 RX450h
