2025 4Runner Transmission Overheating on Climbs Off-Road

[NotApplicable]

I look for this issue every time I’m off-road - constant scan of T’s & P’s just like any aircraft I’ve flown. I just haven’t had any issue at all. I do use a standard setup off-road (except Green easy stuff), 4Lo, S1-S3, SDM, MTS - Rear Locker or Crawl/Decent as required but that’s infrequent. I understand the frustration folks are having with this - it’s kinda’ like the brake squeal, just shouldn’t have to worry about it after the investment we made in the vehicle. I’ve used this setup over and over in high altitude, low altitude, cool temps, over 100 F ambient temps for hours, prolonged climbs/descents - no transmission overheat issues.

Makes sense, sounds like you aren’t using 4Hi which, based on reports, is required to cause the issue

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[a_double]

Having to use 4Lo on a paved moderate incline where there’s no chance for tire slippage is contrary to the owners manual.

 

[3rdRunner]

Having to use 4Lo on a paved moderate incline where there’s no chance for tire slippage is contrary to the owners manual.

Never use 4Lo on pavement, only off-road. If I was concerned about Transmission Temp I would use manual (S) or Tow/Haul - keep the engine revs higher. Understand and agree that this is certainly something we shouldn’t have to be worried about.

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