"Sealed lifetime transmissions"

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10,195
Location
OH
Originally Posted By: nthach
Originally Posted By: doitmyself
Originally Posted By: grampi
My wife's new (well, new to us) 2015 Sienna has a sealed lifetime tranny...I'm not doing anything with it...the vehicle came with a lifetime warranty and breaking open the tranny would void the warranty...
It does have a 60,000 mile tranny fluid change interval for vehicles operated under "special conditions". Many of these transmissions are only "sealed" by a removable drain bolt, but I'm not up on the Toyota products.
The task of draining the fluid isn't hard, there's a "check" plug with a 6mm that covers the fluid level standpipe which also doubles as the fluid drain - the same 6mm hex/Allen will remove that as well. There's a 24mm fill plug on the wheel side of the tranny. Make sure the standpipe is reinstalled. There are two schools of thought about the fluid level check - both need the tranny fluid between 100-113*F. The first way is to pull the 6mm check plug while the car is running and level and either let it drain to a trickle or add fluid until it trickles out. The second way is to pull a vacuum on the tranny case and install the official "level check device(https://www.carmd.com/Tsb/Download/98051/T-SB-0036-13)" to the oil pan and see where the level lands on it. There's a few threads of the DIY fluid change, your Sienna's tranny is quite similar: http://www.toyotanation.com/forum/104-ca...0-camry-v6.html https://www.clublexus.com/forums/es-5th-...eplacement.html
I didn't decide not to change the fluid because it's difficult to do, I decided not to do it because doing so would void my warranty...
 
Messages
7,540
Location
California
Originally Posted By: grampi
Originally Posted By: nthach
Originally Posted By: doitmyself
Originally Posted By: grampi
My wife's new (well, new to us) 2015 Sienna has a sealed lifetime tranny...I'm not doing anything with it...the vehicle came with a lifetime warranty and breaking open the tranny would void the warranty...
It does have a 60,000 mile tranny fluid change interval for vehicles operated under "special conditions". Many of these transmissions are only "sealed" by a removable drain bolt, but I'm not up on the Toyota products.
The task of draining the fluid isn't hard, there's a "check" plug with a 6mm that covers the fluid level standpipe which also doubles as the fluid drain - the same 6mm hex/Allen will remove that as well. There's a 24mm fill plug on the wheel side of the tranny. Make sure the standpipe is reinstalled. There are two schools of thought about the fluid level check - both need the tranny fluid between 100-113*F. The first way is to pull the 6mm check plug while the car is running and level and either let it drain to a trickle or add fluid until it trickles out. The second way is to pull a vacuum on the tranny case and install the official "level check device(https://www.carmd.com/Tsb/Download/98051/T-SB-0036-13)" to the oil pan and see where the level lands on it. There's a few threads of the DIY fluid change, your Sienna's tranny is quite similar: http://www.toyotanation.com/forum/104-ca...0-camry-v6.html https://www.clublexus.com/forums/es-5th-...eplacement.html
I didn't decide not to change the fluid because it's difficult to do, I decided not to do it because doing so would void my warranty...
It won't void your warranty - as a matter of fact if anything it will help your tranny life a longer life. It's only when a dealer uses BG/MOC fluids instead of what the OEM sanctions or a quick lube using a "universal" fluid within the factory warranty period is when you might have warranty issues. BMW, Mercedes and Audi didn't call for fluid changes, but people were having expensive ZF or Benz gearboxes drop like flies after the powertrain warranty was up.
 
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