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Scheduled Maintenance (cont’d)
Service Maintenance I Maintenance II
Lubricate body components. See footnote (f). •
Check transmission fluid level and add fluid as needed. •
Inspect shields, vehicles with GVWR above 10,000 lbs (4 536 kg) only.
See footnote (g).
•
Inspect throttle system. See footnote (m). •
Additional Required Services (Gasoline Engine)
This maintenance section applies to vehicles with a gasoline engine. If your vehicle has a diesel engine, see the
maintenance schedule section in the DURAMAX
®
Diesel manual.
The following services should be performed at the first maintenance service (I or II) after the indicated miles
(kilometers) shown for each item.
Additional Required Services
Service and Miles (Kilometers)
25,000
(40 000)
50,000
(80 000)
75,000
(120 000)
100,000
(160 000)
125,000
(200 000)
150,000
(240 000)
Inspect fuel system for damage
or leaks.
• •••••
Inspect exhaust system for loose or
damaged components.
• •••••
Replace engine air cleaner filter. See
Engine Air Cleaner/Filter on page 5-20.
•••
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