I believe it's caused by a sensor unit. I've had a couple go out on my 92 and I have the same problem with my Tranny light and when it happens my tranny goes in to the winter mode which causes the tranny to be stuck in 3rd gear. If you find out, let me know!
1999 Isuzu trooper
How do you change the transmission fluid on a 2001 4x4 Isuzu trooper
will a 3.2L 2000 Isuzu Trooper engine fit a 3.2L Isuzu rodeo transmission
Can I replace my auto transmission with a maual transmission in my 94 trooper
a GM product
I have a 1994 Isuzu Trooper and it has issues upshifting at lower speeds. How do I check the fluid level in the transmission when there is no dipstick?
if it is an automatic then yes, if it is a standard transmission then no
The 1993 Isuzu Trooper with the 4L30E 5-speed manual specifies API 5W30 for the transmission. API SJ (or above) is compatible with this transmission.
M1.75 50mm
Check myisuzuparts.com
When changing the filter and fluids of a car, it is important to know the fluid capacity. A 2000 Isuzu Trooper uses 9.1 quarts of transmission fluid.
ATF-III