Jeep 2004 Grand Cherokee Owner's Manual page 301

Miles
(Kilometers)
Change the engine oil and engine oil filter.
Inspect the engine air cleaner filter, replace if nec-
essary.
Inspect the PCV Valve, replace if necessary.
Replace the spark plugs.
Lubricate the upper knuckle ball stud at steering &
suspension ball joints.
Drain and refill the front and rear axles.
Inspect the brake linings.
Clean and lubricate the brake caliper pins.
Drain and refill the automatic transmission fluid,
and change filter (4.0L Only).
Drain and refill the automatic transmission fluid,
and replace main sump filter (4.7L Only).
Drain the transfer case and refill (Quadra-Trac
Models Only).
18,000 21,000 24,000
(29 000) (34 000) (38 000)
X X
X
SCHEDULE "B" 301
27,000 30,000
(43 000) (48 000)
X X X
X
X
X
X X
X
X
X
X
X
X
M
A
I
N
T
E
N
A
N
C
E
S
C
H
E
D
U
L
E
S
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