There is no dipstic, it is a sealed system. Unless you have a leak, it doesn't require checking. There is no checking the fluid, it is a sealed system and requires no checking unless you have a leak.
check your tranny fluid first
There is no dipstick for the trans.
My Trooper did the same thing and I replaced the fluid and filter and added a separate trans fluid cooler and that fixed the problem.
I do believe that if it's a sealed transmission then you have to pull the check plug from the trans to check it its just like a fill plug believe its on the left side of trans.
The dipstick with the yellow top is the standard for oil, red is trans fluid.
How to check trans fluid on a 1997 Isuzu Trooper
you can't it is a sealed unit. will never have another vehicle with a sealed trans. only way is to have it serviced.
Dextron 3
The check trans light may light up in an Isuzu Rodeo, because there are problems with the transmission, The light will show up on the cars dashboard.
there is 2 plugs on the bottom pan of the trans. With the engine running pull the plug that is higher up. Fluid should just trickle out.
Use standard automatic transmission fluid mercon III
To check the transmission fluid on an Isuzu NPR, first ensure the vehicle is on a level surface and the engine is running at idle. Locate the transmission dipstick, usually found near the back of the engine, and carefully remove it. Wipe it clean, reinsert it fully, then pull it out again to check the fluid level, ensuring it falls within the marked range. If necessary, add the appropriate type of transmission fluid through the dipstick tube.