GMC 2003 Sierra - Manual (Page 505)

II the system is ever reset atcldentelly» yüu musí
change your oil al 3,000 miles {6 000 km) since your
Jast oil change^ Rernember to reset the oil life system
rtibenever lh& oil is changed. See Engine Oif on
рздв 5-l7\ot Iniormalion or resetting the system.
An Emission Coniroi Sen/icOr
Lubricate chassis components with aach engine oil
and filler change. Vehicles used under severe
commercial operating conditio ns require lubrication
on a regular basis every 3,000 rniles {5 COO km}.
Lubrícate the frcnl suspension, ball pints, steering
linkage, transinission shift linkage and parking brake
cable guides. BaM joints should hot be lubncated unless
Iheir temperature is ICF (-12‘^C) or higher or they
Could be damsgad.
After the services are performed, necord ihe date,
odometer reading and who perfonmed the service on the
maintenance record pages in Pad E of this schedule.
7.500 Miles (tiSOOkm)
Ü Check rear/front axle Huid level and add Huid as
needed. Check constant velocity loinls and axle seals
br leaking.
J Rotate Tires. See Tire inspecUon and Rotation on
page 5'74 for proper rotation pattern and additional
infoTTnalion. (See footnote -t.)
□ Allison Trarismlsslor Only: Replace the external
contraFmgin fitter,
15,000 Miles (25 000 km)
Jt Inspect engine sir cleaner niter A you are driving in
dusty Conditions. Replace filter If necessary,
fin Emission Controf Service. (See footnote f.)
J Check rear/iront axle fluFd level and add Huicf as
r^esded. Check constant velocity joints and axle seals
for leaking.
■J Rotgle tires. See Tire inspection and Rotation an
page 3-74 lor proper rotation palterm and aiidltiooat
information. (See foofoote -i-.}
22.500 Miles (37 500 km)
J Check rear/fronl axle fluid level and add fluid as
needed. Check con^lant vetpcicy points and axle seals
for leaking,
U Roíale Hres. See Tim inspection and Rotation on
page 5-74 for proper natation pattern and additional
infonrigtion.i'Sep footnote +.)
6-6