Pops1

Any update on the problem? 

I had something very similar when I repaired the hybrid Battery in my gs300h, turned out that I had reversed the high voltage cables from the Battery to the inverter. Not sure if the pic of the cables is before or after finding out they were wrong way around. Thankfully no damage done 

Thanks for that Colin, I might have to look elsewhere for a cure for the problem. I've since found that it happens when the car swaps from Battery to engine power, just as its transferring its like a loss of power for a split second, otherwise the car runs very good. There was a warning about the hybrid Battery, ( P0A80 replace hybrid battery), I cleaned the Battery busbars and now everything is OK, other than the flat spot is still there. 

Found this but i think it's for earlier gs300 non hybrid, anyone changed one

Looking for info on the fuel filter for the 2014 gs300h, best i can find so far is that its in the tank as part of the pump. I was shown some pics that i think are from an American forum but the part numbers don't come up when I search for them. 

My car with over 200,000miles drops power intermittently, there's no fault codes which makes me think that it might be a clogged fuel filter. Local dealer is a bit hit and miss as to how helpful they might be when there might be a bit of doubt about parts so I was hoping to have some proper info before going to them, like part numbers and what else might be needed such as o rings etc. 

Numbers I got are

23217-46898 for filter 

23217-46090 for strainer

I think these part numbers are for the earlier 300h non hybrid 

Nice to have been of help, its good to share any tips. 

On my car the fore&aft adjustment is done by pulling the bottom of the headrest foreword till you find the position you want, if you pull it all the way forward it seems to release the adjuster and you can push it all the way back and start again 

Had the same problem with my sons is300h, aircon fault was the pressure sensor, it is NOT A DIY JOB as the gas has to be recovered and refillid as it will leak out when the sensor is removed . Same as yours, when the aircon was turned on and didn't work i got the independent garage to regas the system and check for leaks, no problems but the aircon still wouldn't work so it was suggested that I could run to the breakers and get a used sensor and he would fit it for free (this involves removing the gas/refrigerant, fitting the sensor and refilling the gas/refrigerant), the sensor i got was a used one from some model of toyota, i think it was an avensis, the sensor is located behind the grill on an aluminium pipe, it is very tight so you need to be careful that you don't snap the pipe, replaced the sensor and refill the system and all ok since. 

Original sensor part number is 

499000-7880 and is a denso product. 

Sons is300h f sport is used around town mostly, usually around 6 miles at a time and usually shows around 42mpg

A few more pics, trim tools came in handy, lock nuts added to prevent the nuts coming loose again 

Had a rattle from the drivers headrest for a while so I decided to strip it down, I had the same issue with the passenger side previously so it was much easier this time. 

The two 8mm nuts that hold the adjuster mechanism had worked loose, one fell off completely which was the cause of the rattle, and the other was hanging on by a thread, hardest part was persuading the leather cover off the shell but it's doable.

A selection of tools needed 

A few clips and 2 screws hold the two parts of the shell together, once the shell is opened its easy to refit the two nuts and add two lock nuts to prevent them coming loose again. 

On the front of the shell there are two screws that need to be removed so that the shell can split, the orange marks are where the bolts that secure the mechanism are, these can be held by a 8mm socket while you tighten the nut on the other side. 

On 3/8/2022 at 12:23 PM, agent_dess said:

Does anyone have an instructions or diagram on changing the CVT Fluid for the IS300h??

I've done it on both my gs300h and my sons is300h, both 2014 cars, It's as straight forward as changing any standard gearbox oil, there's a drain plug and a fill plug above it on the right side of the transmission / gearbox. From memory I think it took 2.5 litres to drain & refill, measure the amount drained and expect to refill at least the same amount. (a totally dry gearbox takes about 5lt), get the genuine oil from lexus / toyota .

Something to check while you're changing the fluid is the earth strap from body to gearbox, they seem to rot away 

For option 1, I'm pretty sure that auto reverse dipping mirrors is only possible if you have memory seats. 

In my case it works on both my 2014 gs300h AND my sons 2014 is300h f sport. 

To begin the process, ignition on or car running in Park, first set your seat and door mirrors to your preferred position and store to memory on button 1, next is to put the car in reverse and adjust the mirrors down to whatever position you want them for reversing and then store to memory again in button 1. If there's more than one driver the same procedure can be done on memory button 2 etc

Good to see the process updated and with pictures, your vents were pretty clear but it shows the need to check them 

On 1/31/2022 at 5:10 PM, Herbie said:

If you clean up the commutator and undercut the insulation between segments (used to be mica but I don't know if it still is or not), give it a general clean-up and replace the brushes, that'll be as good as new.

Ya that's what I was thinking but it's replaced a good while now, it was due to boredom that I was in the shed doing a bit of a tidy up and came across the motor so I thought I might as well have a look to see what it was like. I posted the strip down in the hope it might be of help to anyone with the same problem 

On 1/29/2022 at 3:54 PM, Beamish said:

 

Hi John,

Thanks for posting that. 

Do you mind if I ask at roughly what mileage this happened?  I know the west of Ireland is not hte driest place on earth but that seems an awfull lot of wear and tear.

Thanks,

Dec.

Car has approx 140000miles,was originally English before being imported into Ireland, car is basically trouble free thankfully but the wipers were a real headache, always thought it was the relays that were the problem because my sons is300h had similar fault but new relays fixed it for him. For me, eventually they stopped working completely so the easiest way was to find a used replacement 

Have had problems with the wipers on my 2014 gs300h for a long time, they would randomly stop working but switching off and on again they would work again with no problems, I thought it may be similar to the issue some have of parking in the wrong positions so I replaced both relays but this eventually didn't solve the problem, probably took 18 months of intermittent failure before they finally gave up for good so I replaced the motor and linkages with a used set from a low mileage gs450h, I was a bit doubtful as the replacement motor was smaller in size but they worked perfectly. 

Today, due to boredom I dismantled the wiper motor to see the condition of the internals, the only thing found was the brushes were worn out, I'm sure they could be replaced if really needed brushes worn well down armature could be saved possibly found this wear on the armature this wear is opposite and at the other end of the armature, I can't find corresponding marks on the magnets so I'm thinking they may be something to do with balancing the shaftbrush worn at a angleall brushes well wornas usual, toyota part numbers on a lexus

Looks good, must be a garage that has it for sale or someone who bought it recently to sell on

On 11/16/2021 at 9:05 AM, johnatg said:

Someone posted this here some time ago. I kept a copy for my future reference. Thanks to whoever it was!

Quote>

'Just some info on how to clean the ducts for the hybrid battery cooling fan.

In my case its a 2014 gs300h with 120000 miles which is used as a taxi.

First remove the upper trim panel in the boot so that you can remove the trim panel that fits behind the rear seat, all this is to remove 1 retaining pin. Next is remove the rear seat base, it just pulls up, now remove the 4 12mm bolts holding the seat backrest in place and pull the base upwards, no need to remove the seat belts but pull the backrest towards the front seats to give a bit of room, behind the felt there are 3 black vent tubes that connect from each side of the car to the cooling fan, there are a few retaining pins to remove and then there is 1 of the retaining pins has to be removed from the boot side, at the fan end of both the side vent tubes is a mesh which gets clogged

 Can't upload pictures but both of my vent tubes were about 90% clogged.

Was an easy enough process and well worth doing.

Hope this might be helpful, '

<End quote

(PS - I haven't tried it myself yet)

 

You're welcome, having to clean the filter isn't something that isn't widely known but is so important 

Just some info on how to clean the ducts for the hybrid Battery cooling fan.
 

    In my case its a 2014 gs300h with 120000 miles which is used as a taxi. 
 

    First remove the upper trim panel in the boot so that you can remove the trim panel that fits behind the rear seat, all this is to remove 1 retaining pin. Next is remove the rear seat base, it just pulls up, now remove the 4 12mm bolts holding the seat backrest in place and pull the base upwards, no need to remove the seat belts but pull the backrest towards the front seats to give a bit of room, behind the felt there are 3 black vent tubes that connect from each side of the car to the cooling fan, there are a few retaining pins to remove and then there is 1 of the retaining pins has to be removed from the boot side, at the fan end of both the side vent tubes is a mesh which gets clogged
 

     Can't upload pictures but both of my vent tubes were about 90% clogged.
 

    Was an easy enough process and well worth doing. 
 

    Hope this might be helpful, 
 

    John
 
https://www.lexusownersclub.co.uk/forum/topic/128393-hybrid-battery-cooling/?do=findComment&comment=1180388

Mine is used as a taxi, approximately 150000miles now, no hybrid Battery issue's however the Battery cooling ducts must be cleaned as they get clogged up. I have a how to posted here somewhere, I think it's under hybrid cooling or something similar 

Found it

Hi all, new member from Ireland. 

I have a 2014 lexus gs300h, in my 3rd year of ownership and find it enjoyable so far

Got two pics of the clogged vents

Just some info on how to clean the ducts for the hybrid Battery cooling fan.

In my case its a 2014 gs300h with 120000 miles which is used as a taxi. 

First remove the upper trim panel in the boot so that you can remove the trim panel that fits behind the rear seat, all this is to remove 1 retaining pin. Next is remove the rear seat base, it just pulls up, now remove the 4 12mm bolts holding the seat backrest in place and pull the base upwards, no need to remove the seat belts but pull the backrest towards the front seats to give a bit of room, behind the felt there are 3 black vent tubes that connect from each side of the car to the cooling fan, there are a few retaining pins to remove and then there is 1 of the retaining pins has to be removed from the boot side, at the fan end of both the side vent tubes is a mesh which gets clogged

 Can't upload pictures but both of my vent tubes were about 90% clogged.

Was an easy enough process and well worth doing. 

Hope this might be helpful, 

John