GMC 2003 Sierra - Manual (Page 402)

3. Check both sides of Ihe dipstick, and read Ihe lower
level. The fluid level must t>e in the COLD area,
betow the cross-hatched area, for a cold chock or in
the HOT area or ctoss-hatched area for a hot
check.
A -
II the fluid level Is in ths eccepfable ranges push the
dipstick back In all ihe ^ay: then nip ihe handle
down lo lock the dipstick in place.
Refer 10 (he Maintenance Schedule fo determine what
kind of transrriisslon Iluid lo uso- See Part D:
RecommefKied Fiüids and Lubdcsnts on f>age &-19.
Add fluid only afler checking the iransimis&ion fluid while
il is hot, [A cold check is used only as a reference.) 1f
the fluid level rs Jow^ add only enough of the proper fluid
to bring Ihe level up to (he HOT area lor a hot cheek.
It doesn't take much ffuJd, generally less than one
pint ÍO.S L). Cfoft': overfiff.
Notice: We recomn>and you use only fluid labeled
DEXnON^ III, desuse fluid wflh that label is
made especially for your automatic transmission.
Damage caused by fluid other than DEXRO^^^
ill is not covered by your new vehicle warranty.
• After adding fluid, rgcheck Ihe fluid level as
described under Hew to Check.
* When Ihe oomect fluid level Is oblamed, push the
dipstick back in ali (he way; then flip the handis
down to lock the dipstick in place.
How to Add Fluid
5-27