GMC 1995 Jimmy Owner's Manual page 256

Then, without shutting off the engine, follow these steps:
c
1. Flip the handle
up and then pull
out the dipstick
and wipe it with a
clean rag or paper
towel.
2 . Push it back in all the way, wait three seconds and th L e n pull it back out
again.
3. Check both sides of the dipstick, and read the lower level. The fluid
level must be in the COLD area for a cold check or in the HOT area or
cross-hatched area for a hot check.
4. If the fluid level is in the acceptable range, push the dipstick back in all
the way; then flip the handle down to lock the dipstick in place.
6-16