GMC 2003 Sierra - Manual (Page 405)

Hot Check Procedure
Ttie Fluid must b* hot to ensure an accuraie checli. The
fluid rise^ ns ternpemture Jncreases-
1i Ihe transmission in DPlV^ (□} range until
the normal operating lemperalute of 160'’F (7i''C)
to 200'^F (93X) is ranched.
2. Pull out the dipstick and wipe it with a dean rag or
paper towei.
3. Push is hack in git the way, wait three seconds and
then pull It back out again. Repeal the check
procedure to verify the reading.
4. Sate operating, level is within the HOT RUI^ band
on the dipstick The width of the HOT flUN band
represent approitmately 1.06 guart (1,0 liter)
ol fluid at normal operating temperature.
5. If the fluid tgvet is not within the HOT RUN band,
add or drain fluid as necessary to bring the fluid
level lo within the HOT RUN band,
6. IF the ftuid level La In (he acceptable range, push the
dipstick back tn all the way.
Consistency of Readings
Always check ihe fluid level at least twice using the
pnOcedurea described previously. Consistency
(repeatable readings) is important to maintaining proper
fluid level. It inconsistent readings peislat. check the
iransrhission breather to be sure il is clean and
unclogged, II readirtga are süll inconsistent, contact your
deafer.
How to M Ü Fluid
Petar to the Maintenanca Schedule ta determine what
hind oi trEinsmi&sion fluid lo use. See Pad 0.'
flacommend'ed Fiutds and Lubncénîs on page 6- TS.
Add fluid only after checking the transmission fluid while
II is hot. {A cold check la used only as a reference.) IF
the fluid level is loWf add only anough of the proper fluid
to bring 1he level up (o The HOT area for a hot check
It doesn't lake much fluid, genersJly less than one
pint (0.5 L) l Don'! cveffUi.
Notice: We recommend you use only fluid labefed
□EXROIsr^ III, because fluid with thai label is
made eapecially for your euto mafic iTansmission.
Damage caused by fluid other than DEXRON“^
III is not covered by your new vehicle warranty.
• After adding fluid, recheck the fluid levai as
descftbed under H qw to Ch^pif.
* When the correct fluid level Is obtained, push the
dipslick back in all the way.
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