Engine Heater; Extended Parking; Diesel Particulate Filter - Chevrolet GMC Duramax 2023 Manual

16 Driving and Operating
2. Starting in the middle, attach fastening
points as illustrated.
3. To remove, reverse the steps listed
previously.

Engine Heater

Warning
Do not plug in the engine block heater
while the vehicle is parked in a garage or
under a carport. Property damage or
personal injury may result. Always park
the vehicle in a clear open area away
from buildings or structures.
If equipped, the engine heater can provide
easier starting in cold weather conditions at
or below 18 °C (0 °F).
For engine heater operation, see Engine
Heater in the owner s manual.

Extended Parking

This vehicle is not equipped with an
automatic engine shutdown feature.

Diesel Particulate Filter

The exhaust system has a Diesel Particulate
Filter (DPF) to reduce vehicle emissions. On
some exhaust systems with a DPF, the
exhaust cooler mixes air with the exhaust to
lower the temperature before it leaves the
tailpipe.