'96 Tahoe. Why does it shut off in reverse? - 1996 Chevrolet Tahoe

Dorman Products 599 101

According to the Dorman parts page for TCCM's , the Blazer and Tahoe TCCM modules are not interchangeable.

Fluid level. Replace trans filter and fluid. No luck? May have to rebuild unit. To prevent this from happening, change trans fluid every 24K miles or so.

It sounds to me like your gearbox is knackered, but just to be sure get underneath & check all the linkages, get yourself a workshop manual as linkages are easy to fit even for a novice, solenoids are relatively inexpensive so if you don't feel like doing this yourself then try this route first.

is the transfer case shifted into neutral?what if you move it down to low gear?is there fluid?

the reverse sun gear shell is a very common problem with the chevy 4l60 transmissions. the trans will need to be taken out of the truck and repaired.

planetery gears or sprag gear,need to have trans.rebuilt

input shaft in gearbox has failed

got to be faulty door lock system for factory keyless entry

check for fuel pressure

I have a '96 tahoe. Look for a code on the battery to see when it was installed. L09 would be december 09. if it is less than 3 years old have it charged and then try.