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Toyota Repair/Automatic transmission


I have a 2011 Toyota Fortuner 3d 4X4 auto.

I did some mods to the suspension and put larger tyres on.  I find now that we off roading the ATF light comes ons.  WIll it  help if I add another ATF cooler or a larger one?

Or should I just not drive in 4HL?

There is no reason to not use 4x4L or H or not drive off-road, be sure the transmission and transfer case have the correct fluid and the level is correct especially if the fluids were already changed and even if not the fluid levels should be checked, it may have a "sealed" transmission that uses the WS type ATF but the fluid can still be checked by using the factory recommended procedure since it most likely has no dipstick to check. If temperatures in your region and area where the truck is operated are a concern then an additional transmission cooler would be a good idea.  

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Ted Ritter


I have more than 28 years experience as toyota technician, I will be able to answer most questions related to the Toyota product line up to the present year models,I am located in the US but welcome questions from other regions of the world. When asking a question please provide specific information: year,model, engine,transmission information. Provide as much information as possible including a brief repair history if possible. I have been a volunteer here for more ten years an have answered over 16,000 questions helping Toyota owners with their problems and save thousands of dollars without any compensation, some of my answers are published on many other websites including google and various automotive forums. DONATIONS ARE VERY MUCH APPRECIATED, IF YOU HAVE RECIEVED HELPFUL INFORMATION PLEASE MAKE A DONATION. AS OF TODAY (JULY 22, 2014) ALL REQUESTED GRAPHICS, ILLUSTRATIONS, DIAGRAMS, PHOTOS, WILL REQUIRE THE MINUMUM DONATION UP FRONT.


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