Chevrolet/GMC 6.6L Duramax Diesel Engine Supplement (GMNA-Localizing-
U.S./Canada-16504481) - 2023 - CRC - 9/26/22
Instruments and Controls 9
Engine Air Filter Life : Displays an estimate
of the engine air filter’s remaining useful life
and the state of the system. Engine Air
Filter Life 95% means 95% of the current air
filter life remains. Messages will display
based on the engine air filter life and the
state of the system. When the REPLACE AT
NEXT OIL CHANGE message displays, the
engine air filter should be replaced at the
time of the next oil change. When the
REPLACE SOON message displays, the engine
air filter should be replaced at the earliest
convenience. The Air Filter Life display must
be reset after the engine air filter
replacement. To reset, see Engine Air Filter
Life System 0 49.
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