When or at what mileage should I do a transmission flush for my 2014 es300h? Had it serviced at Toyota Friday and they said I needed it but I didn't see it in the manual anywhere. Sorry if someone asked this question already. Thanks!

 

Save your money. Lexus states it never needs to be changed. Will guarantee comments will follow like nothing last forever, needs to be changed, it changes color after so many miles etc. Anyone who recommends you spend your hard earned money to change it ask them how many years they have working on Lexus transmission's and where did they get their training. You will get no replies. All this being said do what you feel most comfortable. Sixth Lexus and never have changed the transmission fluid and ZERO problems.

My local Lexus Service manager who has 25 years experience working on Lexus vehicles and has been trained by Lexus said it never needs to be changed. He went to Detroit where the transmissions are made for training and asked what is the #1 cause of Lexus transmission failing. Their reply was the wrong level of fluid and the wrong fluid. Both of these are factors in one changing the fluid. I will save my money and never change the fluid and listen to the experts. Never changed the transmission fluid and never had one problem. Asked him what lifetime meant and see said life of the car. Save your $$$$$

 

appreciate it and the quick reply!

 

Lots of people change their fluid in their Toyota/Lexus hybrids. It’s a pretty simple process and takes about 30 per many of the people who have done it.

 

Es 300h does not have a traditional transmission. It is termed a power split device in the parlance of Toyota engineer. It still uses the WS transmission fluid but has nowhere near the abuses that a "regular" tranny puts the fluid through ( like the Aisin 6 speeds on the es350). That said, the "need" to change fluid is less than a traditional tranny. The hybrids only need a simple drain & fill like a regular differential (if you decide to do so) and the cost should be minimal.
As per Fred post, Toyota's line to not change the traditional tranny fluid is a risk management decision...their techs cannot be trusted to always do it right, let alone non Toyota motor Corp techs at independent ahops. The traditional Aisin 6 speed requires a fairly convoluted process, although many have done it. ( And that's referring to a fluid exchange, not a flush under abnormal tranny pressures- some dealers do offer the fluid exchange) I just do drain and fills (measure what goes out and put same amount fresh fluid back in). The latter at the advice of my bro who is a Master tech (or lead or whatever the higher up tech is referred to), who use to be the tranny guy for a Toyota dealer before hanging up his wrenches after 15 years wrenching...it's rough on the musculoskeletal system doing stuff like that for a long time. He was one of the few service advisors that actually wrenched awhile before becoming an SA. Now he drives a snapon tools truck lol.

We live in the high desert, where it can reach 117 in stop and go traffic on blacktop here, and heat Kills trannys. The dealership he worked for had the same official opinion as Fred's, but my bro loves me and we keep cars forever.

 

Anybody know how many quarts the transmission actually holds? I just picked up an es 300h myself.

 

My 15 Camry hybrid (which uses same cvt as es300) took 4 qts WS fluid

 

oh wow im happy to read this i thouhgt we had the the same tranmissions and hybrid was really just for engine and battery
does anyone have a link anyone take a video of changing the trans fluid in the Hybrids ?
i thought we had the same trans because the trans in the ES is a 6speed
i was actualy suprised that we had 6 speeds when the other lexus hybrid that i ahve driven the CT only has 1 drive great and than a low Breaking gear to **** into from what i remember so i was suprised we dont have the same trans

 

Great post. The Toyota/Lexus "by the book" way of doing the transmission service is very complicated and takes $$ in special equipment. I have the PDF from the TIS and have never used it. The old school drain and fill is very easy and quick. Although if you want to look at your fluid level utilizing the drain tube you will need a temperature measuring device. I use a scangauge II, which is permanently installed in my car to monitor several items and read trouble codes.

I have been building engines and transmissions for over 40 years. Most Service Managers I know never got their hands dirty. They are management. I could not imagine telling someone not to service their transmission with a straight face.

 

Oh boy here we go again. Another "do I flush or drain my tranny" for the Lexus cars when there are probably over a hundred previous posts and 20 different threads.
This subject has been debated over and over and beaten to death... Literally for years. It will not be resolved between those who recommend changing it and those who recommend
GOING BY WHAT TOYOTA RECOMMENDS... For those who want to read the scores of posts regarding this subject please do a search and not prolong another long thread that is just
"us vs. them"...

 

We are all doing the same thing that you are. You are posting in the threads stating that TOYOTA RECOMMENDS NOT SERVICING. I choose to post in certain threads stating that based on all my years of experience you should service your transmission. Not sure what the issue is. I thought we were supposed to share information and knowledge.

I apologize if there is a different protocol for this forum.

 

I don't think that there is any question about whether this is an appropriate topic for discussion. Instead, the questions are about how many times the same things can be said over and over again and how many times the same people can continue to say the same things over and over again.