Chevrolet 4500HD Series 2019 Manual page 332

No. Service Interval
11 Engine cooling system
12 Engine coolant
13 Exhaust system
14 DPF (clean filter)
DPF (pressure difference
15 sensor 0 point
adjustment)
DPF (pressure difference
16
sensor hose)
17 Fuel line system
Brake lining and pad
18
for wear
I - I I I -
Every 24 months: R (when dealer recommended coolant is used)
I - I I I -
- - - - - -
- - - - - -
Every 160 000 km (100,000 miles): I
Every 400 000 km (250,000 miles): R
I - I I I -
I - I I I -
Service and Maintenance
I I I - I I
Every 12 months: I
I I I - I I
- - - - - -
- - - - - -
I I I - I I
I I I - I I
Service intervals
months or
kilometers
(miles)
whichever
occurs first (1)
or every
I - I
12 months
I - I
or every
C - -
3,000 hours
or every
A - -
3,000 hours
or every
3,000 hours: I
or every
I - I
12 months
I - I
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