Notices
Hybrid Technology Unique topics related to the GS450H model hybrid drivetrain and other features/options found only on the GS450H. Please use the main 4GS forum for discussion about shared components with other fourth generation GS models.

is the dead hybrid battery a problem?

Thread Tools
 
Search this Thread
 
Old Oct 22, 2022 | 09:40 AM
  #1  
Luke11's Avatar
Luke11
Thread Starter
Driver School Candidate
5 Year Member
 
Joined: Sep 2019
Posts: 19
Likes: 5
From: none
Default is the dead hybrid battery a problem?

I'm planning to buy a gs450h 2012-2015 (I'm in EU idk if US are different), I heard that if you don't drive and the battery dies, the car won't start, it's a serious problem.
True or false? How then to start the car?
Reply
Old Oct 22, 2022 | 10:55 PM
  #2  
703's Avatar
703
Lead Lap
20 Year Member
Community Builder
Liked
Loved
 
Joined: Aug 2001
Posts: 4,517
Likes: 925
Default

True.

You cant start the car. Unless you have $10k equipment that can charge the traction battery.

Takes more than 3 months for this to happen.
Reply
Old Oct 23, 2022 | 04:50 AM
  #3  
Hues10's Avatar
Hues10
Advanced
5 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2019
Posts: 602
Likes: 193
From: Florida
Default

Wow, I don’t believe anyone has ever discussed the traction battery draining to the point of not being able to start the car. So basically you are saying if I for some reason wanted to store my car for the winter up north, or if I had a collection of cars like Jay Leno, and did not get around to driving it but only once every six months, the traction battery would eventually drain and I am SOL? I figured the 12V battery would need to have a battery minder on it, but just figured the traction battery has a kill switch on it so that it would not allow itself to completely drain. Or that it would literally take years to completely drain. No matter, I am not Jay Leno, but curious question.
Reply
Old Oct 23, 2022 | 06:00 AM
  #4  
JGB93's Avatar
JGB93
Rookie
5 Year Member
Liked
Loved
 
Joined: Oct 2020
Posts: 36
Likes: 24
From: British Columbia
Default Someone posted this thread a few weeks ago

https://www.clublexus.com/forums/hyb...batteries.html
Reply
Old Oct 23, 2022 | 11:35 PM
  #5  
Luke11's Avatar
Luke11
Thread Starter
Driver School Candidate
5 Year Member
 
Joined: Sep 2019
Posts: 19
Likes: 5
From: none
Default

Looks like a procedure is needed every 2 months

Reply
Old Oct 27, 2022 | 01:31 AM
  #6  
Hues10's Avatar
Hues10
Advanced
5 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2019
Posts: 602
Likes: 193
From: Florida
Default

I guess I should put in my medical surrogate form to keep me alive for 30 days or so, but to make sure and keep the Hybrid System on for at least 30 minutes after they pull the plug on me. Good information. Hope to never need to think about it or use it. I am driving Lexi today to work. My once per week pleasure. Yeah!
Reply
Old Oct 28, 2022 | 09:10 AM
  #7  
peasodos's Avatar
peasodos
Lexus Test Driver
5 Year Member
Liked
Loved
Top Answer: 1
iTrader: (1)
 
Joined: Feb 2017
Posts: 5,522
Likes: 2,263
From: USA
Default

I've had my 450h parked(never turned on) for just over a month started up just fine when I got back from vacation. The car won't start if the 12V battery in the trunk is dead, just like any other car. Unless you plan on not starting the car for over a month+ I'd say nothing to worry about. Now I can remote start my car from anywhere and let it run for 10 minutes if I'm away for a long time.
Reply
Old Nov 16, 2022 | 07:53 AM
  #8  
spineman's Avatar
spineman
Pit Crew
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2017
Posts: 205
Likes: 43
From: DE
Default

Originally Posted by peasodos
I've had my 450h parked(never turned on) for just over a month started up just fine when I got back from vacation. The car won't start if the 12V battery in the trunk is dead, just like any other car. Unless you plan on not starting the car for over a month+ I'd say nothing to worry about. Now I can remote start my car from anywhere and let it run for 10 minutes if I'm away for a long time.
That is interesting. How do you remote start from anywhere?
Reply
ClubLexus Stories

Celebrating Lexus & Toyota from Around the Globe

story-0

TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing

 Michael S. Palmer
story-1

Top 10 Lexus & Toyotas to Drive Before You Die!

 Joe Kucinski
story-2

Top 10 Lexus/Toyotas With The LEAST 5-Year Depreciation

 Joe Kucinski
story-3

Lexus LC500 Convertible Auction: A Preview of Rising Values?

 Brett Foote
story-4

GX 550 vs TX 550: Best 3-Row Luxury Lexus Family Hauler

 Michael S. Palmer
story-5

9 Best Lexus Models You Can Buy for Half Price (And 1 You Shouldn't!)

 Joe Kucinski
story-6

2026 Lexus NX Buyer's Guide: Models, Features, Prices & More!

 Brett Foote
story-7

Top 10 Reasons to Buy a Lexus TX 550h+ (& 3 Reasons to AVOID!)

 Michael S. Palmer
story-8

Top 10 Lexus & Toyota Models of the 1990s RANKED!

 Joe Kucinski
story-9

10 Great Toyotas That Could Have Been Lexus Models

 Joe Kucinski
Old Nov 16, 2022 | 07:55 AM
  #9  
peasodos's Avatar
peasodos
Lexus Test Driver
5 Year Member
Liked
Loved
Top Answer: 1
iTrader: (1)
 
Joined: Feb 2017
Posts: 5,522
Likes: 2,263
From: USA
Default

Originally Posted by spineman
That is interesting. How do you remote start from anywhere?
Remote start kit from 12voltsolutions, uses 4G network and app on my phone, 3 years of service is $99.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
litpost
Hybrid Technology
12
Sep 1, 2023 10:31 AM
jebkutach
GS - 3rd Gen (2006-2011)
2
Jan 19, 2023 01:59 AM
KCJones007
CT 200h Model (2011-2017)
0
Nov 24, 2017 02:21 PM
Nospinzone
Hybrid Technology
5
Feb 15, 2015 07:49 PM
Spinnaker
Hybrid Technology
26
Nov 5, 2006 08:27 AM




All times are GMT -7. The time now is 07:53 PM.

story-0
TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing

Slideshow: diving into 4Runner TRD Off-Road Premium's pricing, performance, fuel economy, features, and amenities!

By Michael S. Palmer | 2026-04-23 13:09:18


VIEW MORE
story-1
Top 10 Lexus & Toyotas to Drive Before You Die!

Slideshow: the 10 Lexus and Toyota vehicles you need to drive before you die.

By Joe Kucinski | 2026-04-23 10:34:24


VIEW MORE
story-2
Top 10 Lexus/Toyotas With The LEAST 5-Year Depreciation

Slideshow: Top 10 Lexus/Toyota models with the lowest 5-year depreciation rate.

By Joe Kucinski | 2026-04-08 12:19:06


VIEW MORE
story-3
Lexus LC500 Convertible Auction: A Preview of Rising Values?

The LC hasn't even disappeared from the Lexus lineup yet, and we're already seeing signs of an explosive market.

By Brett Foote | 2026-04-06 09:25:02


VIEW MORE
story-4
GX 550 vs TX 550: Best 3-Row Luxury Lexus Family Hauler

Slideshow: comparing the pricings, specs, power, fuel economy, fun-factor, and features of the GX 550 Luxury+ and TX 550h+ Luxury.

By Michael S. Palmer | 2026-03-19 13:44:11


VIEW MORE
story-5
9 Best Lexus Models You Can Buy for Half Price (And 1 You Shouldn't!)

Slideshow: 9 best Lexus models you can buy for half price and 1 you should avoid

By Joe Kucinski | 2026-03-19 12:01:07


VIEW MORE
story-6
2026 Lexus NX Buyer's Guide: Models, Features, Prices & More!

Here's everything you need to know about the latest NX.

By Brett Foote | 2026-03-19 11:56:59


VIEW MORE
story-7
Top 10 Reasons to Buy a Lexus TX 550h+ (& 3 Reasons to AVOID!)

Slideshow: reviewing the 2026 Lexus TX 550h+ Luxury plug-in hybrid crossover SUV!

By Michael S. Palmer | 2026-03-05 19:04:47


VIEW MORE
story-8
Top 10 Lexus & Toyota Models of the 1990s RANKED!

Slideshow: Top 10 Lexus and Toyota model of the 1990s ranked.

By Joe Kucinski | 2026-03-04 12:35:11


VIEW MORE
story-9
10 Great Toyotas That Could Have Been Lexus Models

Slideshow: 10 Toyotas that could have been Lexus models.

By Joe Kucinski | 2026-02-19 11:44:33


VIEW MORE