3IS Battery Drain (merged threads)
Driver School Candidate
Joined: Apr 2014
Posts: 12
Likes: 0
From: CA
The battery on my 3IS died today just 24 hours after I last drove it. I have just under 6000 miles on it, and I've had the car since December. I jump started it, left it running for half an hour, and was able to start it on its own again.
I'm guessing parasitic drain is the issue (maybe from a sporadic bug in the software?). I don't make a lot of short drives, so I don't think that's the issue; my last drive was 50 miles.
I'm guessing parasitic drain is the issue (maybe from a sporadic bug in the software?). I don't make a lot of short drives, so I don't think that's the issue; my last drive was 50 miles.
Driver School Candidate
Joined: Mar 2014
Posts: 14
Likes: 0
From: New Jersey
Dead battery for me as well. I haven't started the car since Monday and just went to my garage to grab something from the car and the doors wouldn't open. Used the valet key to get in and the car wouldn't start. I'll call Roadside tomorrow since it's late. I changed the interior lights to LEDs so does anyone think this can be the problem. Trying to figure out what it could be and that's the only thing I can think of.
Last edited by Spoo18; May 16, 2014 at 06:56 PM.
Rookie
Joined: Feb 2014
Posts: 88
Likes: 0
From: california
Dead battery for me as well. I haven't started the car since Monday and just went to my garage to grab something from the car and the doors wouldn't open. Used the valet key to get in and the car wouldn't start. I'll call Roadside tomorrow since it's late. I changed the interior lights to LEDs so does anyone think this can be the problem. Trying to figure out what it could be and that's the only thing I can think of.
Driver School Candidate
Joined: Mar 2014
Posts: 4
Likes: 0
From: New Mexico
Well, I woke up this morning to a dead battery on my 3IS. Only 2500 miles on it.
I have a battery charger on it now to hopefully get it recharged. I will report the issue to the dealer but probably not take it in until I have a recurrence or I hear of a solution or admission of an issue by Lexus.
I went through a similar issue with my previous vehicle (2012 Infiniti M) and I feel like it's Groundhog Day for me.
I have a battery charger on it now to hopefully get it recharged. I will report the issue to the dealer but probably not take it in until I have a recurrence or I hear of a solution or admission of an issue by Lexus.
I went through a similar issue with my previous vehicle (2012 Infiniti M) and I feel like it's Groundhog Day for me.
Driver School Candidate
Joined: Mar 2014
Posts: 14
Likes: 0
From: New Jersey
I have an update on the dead battery issue. Got it towed in to the dealership on Sat. Got the call today from the tech and they said it was a bad battery. Left a meter on the new one to see if any electrical components were causing the drain and he said everything is fine. He said it was just a case of a bad battery.
Rookie
Joined: Feb 2014
Posts: 88
Likes: 0
From: california
I have an update on the dead battery issue. Got it towed in to the dealership on Sat. Got the call today from the tech and they said it was a bad battery. Left a meter on the new one to see if any electrical components were causing the drain and he said everything is fine. He said it was just a case of a bad battery.
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Driver School Candidate
Joined: May 2014
Posts: 5
Likes: 0
From: Texas
I purchased the 2014 IS250 back in November last year. I drive it every day. Recently, I went on vacation for 6 days and left nothing on in the car. When I came back the battery was completely dead (drained) and it had to be replaced. My dealer said it was a known issue. Now should I worry if I take vacation again? How many batteries can I expect to go through?
Driver
Joined: Jul 2013
Posts: 189
Likes: 2
From: UT
I've had the same problem last week, I didn't drive my car for 2 days and the batteries died on me. I took it into the dealership and they told me I must of left the light on but I know I didn't because the last time I drove was when I got home at around 3:00 in the day.
Pit Crew
Joined: Jan 2014
Posts: 139
Likes: 1
From: California
I purchased the 2014 IS250 back in November last year. I drive it every day. Recently, I went on vacation for 6 days and left nothing on in the car. When I came back the battery was completely dead (drained) and it had to be replaced. My dealer said it was a known issue. Now should I worry if I take vacation again? How many batteries can I expect to go through?
Driver
Joined: Jun 2013
Posts: 163
Likes: 22
From: Ga
Lexus Master Technician here,
Lexus knows about the battery drain issues. It is currently under investigation for the IS/GS models. My dealer alone has seen several complaints about it. At first, we tried putting in high CCA rated batteries, but that did not fix it. It seems like every week, we have a Lexus field engineer at our dealer to examine another dead battery. Just yesterday, our diagnostic specialist had 3 different 4th gen IS models in the shop comparing parasitic draw. Hopefully soon there will be a TSB on the issue; until then i'm afraid there is no fix as of right now.
Lexus knows about the battery drain issues. It is currently under investigation for the IS/GS models. My dealer alone has seen several complaints about it. At first, we tried putting in high CCA rated batteries, but that did not fix it. It seems like every week, we have a Lexus field engineer at our dealer to examine another dead battery. Just yesterday, our diagnostic specialist had 3 different 4th gen IS models in the shop comparing parasitic draw. Hopefully soon there will be a TSB on the issue; until then i'm afraid there is no fix as of right now.
Driver School Candidate
Joined: May 2014
Posts: 5
Likes: 0
From: Texas
Lexus Master Technician here,
Lexus knows about the battery drain issues. It is currently under investigation for the IS/GS models. My dealer alone has seen several complaints about it. At first, we tried putting in high CCA rated batteries, but that did not fix it. It seems like every week, we have a Lexus field engineer at our dealer to examine another dead battery. Just yesterday, our diagnostic specialist had 3 different 4th gen IS models in the shop comparing parasitic draw. Hopefully soon there will be a TSB on the issue; until then i'm afraid there is no fix as of right now.
Lexus knows about the battery drain issues. It is currently under investigation for the IS/GS models. My dealer alone has seen several complaints about it. At first, we tried putting in high CCA rated batteries, but that did not fix it. It seems like every week, we have a Lexus field engineer at our dealer to examine another dead battery. Just yesterday, our diagnostic specialist had 3 different 4th gen IS models in the shop comparing parasitic draw. Hopefully soon there will be a TSB on the issue; until then i'm afraid there is no fix as of right now.
Last edited by mishy; May 30, 2014 at 08:15 AM.