Chevrolet/GMC 3.0L Duramax Diesel Engine Supplement (GMNA-Localizing-
U.S./Canada-13336148) - 2020 - CRC - 9/5/19
Instruments and Controls
13
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