3IS Battery Drain (merged threads)
07-01-17, 08:17 PM
#646
Lexus Test Driver
Join Date: Feb 2017
Location: Richmond Hill, Ontario, Canada
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So a little more info on this...the effected IS's must either have Blind Spot Monitor or Clearance Warning Sonar (or both) in order to be equipped with the Network Gateway ECU that causes this.
Dojoman is correct as there is an even newer ECU available. But if you have neither of these options, then the ECU is not causing your dead battery...which really isn't comforting either.
07-02-17, 12:09 PM
#648
I recently started my 2016 IS350 (with BSM) after 7 weeks of inactivity due to an extended trip abroad - the car fired up with no problem.
07-02-17, 01:59 PM
#649
Lexus Test Driver
Originally Posted by Olasek
I can't believe a dealer could make such a stupid remark.
I recently started my 2016 IS350 (with BSM) after 7 weeks of inactivity due to an extended trip abroad - the car fired up with no problem.
I recently started my 2016 IS350 (with BSM) after 7 weeks of inactivity due to an extended trip abroad - the car fired up with no problem.
07-26-17, 08:06 AM
#651
Has anyone replaced their battery with a OPTIMA YELLOW TOP? If so, what is the part number for the one you have?
I have a few auxiliaries which has lead me to believe is the reason for my dead battery...
I have a few auxiliaries which has lead me to believe is the reason for my dead battery...
08-02-17, 09:14 AM
#653
Lexus Test Driver
My car has BSM, but is 2016. Never any issues at all. So if this helps anyone--probably means Lexus did change something for 15+ MYs w/ BSM.
08-02-17, 09:14 AM
#654
08-02-17, 09:59 AM
#655
Instructor
My 2014 also has BSM - never had battery issues (still have original battery) - it seems to be totally random. It also seems that they did figure what the issue was and made adjustments for 2015+.
08-02-17, 10:11 AM
#656
Driver School Candidate
Join Date: Sep 2015
Location: California
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I have BSM and have had the battery issue with my 2014 IS350 F Sport.
After reading about it, I decided to change out the battery for a more powerful Interstate AGM battery. I can leave the car parked for weeks now and it starts right up every time. The extra capacity may be hiding the problem with the ECU, but it's a non-issue as far as every day operation now.
After reading about it, I decided to change out the battery for a more powerful Interstate AGM battery. I can leave the car parked for weeks now and it starts right up every time. The extra capacity may be hiding the problem with the ECU, but it's a non-issue as far as every day operation now.
08-02-17, 11:34 AM
#657
Instructor
08-02-17, 08:46 PM
#658
Pole Position
For Canadians, the American TSB for the Gateway ECU didn't apply to us despite having a VIN within the listed range (which I think is dumb), but I learned there's a TSB recently released for certain Canadian models now. I'm going to see if mine is included in the next service.
08-03-17, 07:04 AM
#659
Lexus Test Driver
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For Canadians, the American TSB for the Gateway ECU didn't apply to us despite having a VIN within the listed range (which I think is dumb), but I learned there's a TSB recently released for certain Canadian models now. I'm going to see if mine is included in the next service.
I.E. Miles is changed to Kilometers for the warranty period reference, the TSB number...and honestly that is usually the only changes.
The TSB calls for the vehicle to either have Sonar or BSM, or both, so that kinda leaves a lot of the Canadian vehicles out of the TSB because how many people bought the vehicle with either of those options.
Because the US has a wider variety of models available in the IS line-up, therefore there is a greater chance of running across a vehicle with either Sonar or BSM.
08-09-17, 12:39 PM
#660
Driver School Candidate
My Experience with the Network Gateway
I just wanted to share my ongoing experience:
I took my 2014 IS250 F Sport with BSM into the Dealership in SoCal and they told me they narrowed down the battery drain to the Network Gateway ECU.
Since I have 65K miles, the dealer told me this part is not covered under my 50k Bumper to Bumper Warranty. They quoted me $8XX (Part + Labor).
With the help of this AWESOME forum, it seems like this issue is happening to other owners. Seems like this NG ECU is a defect and should be recalled. I contacted Lexus Customer Satisfaction and started a case with them and was told that a case manager will reach out to me within 2 business days. Updates will come as soon as I find out more information.
*OEM battery was replaced w/ a Lexus Battery 1-2 months ago directly from the dealership. Since the replacement, the car died four times.
I took my 2014 IS250 F Sport with BSM into the Dealership in SoCal and they told me they narrowed down the battery drain to the Network Gateway ECU.
Since I have 65K miles, the dealer told me this part is not covered under my 50k Bumper to Bumper Warranty. They quoted me $8XX (Part + Labor).
With the help of this AWESOME forum, it seems like this issue is happening to other owners. Seems like this NG ECU is a defect and should be recalled. I contacted Lexus Customer Satisfaction and started a case with them and was told that a case manager will reach out to me within 2 business days. Updates will come as soon as I find out more information.
*OEM battery was replaced w/ a Lexus Battery 1-2 months ago directly from the dealership. Since the replacement, the car died four times.