Holden Trailblazer Owner Manual (GMSA-Localizing-Australia - 10460368) -
2017 - crc - 6/29/16
Driving and Operating
191
Engine Exhaust
{
Danger
Engine exhaust gases contain
poisonous carbon monoxide,
which is colourless and odourless
and could be fatal if inhaled.
If exhaust gases enter the interior
of the vehicle, open the windows.
Have the cause of the fault
repaired by a Holden Dealer.
Diesel Particulate
Filter
The vehicle has a Diesel Particulate
Filter (DPF) as part of the exhaust
system to reduce vehicle emissions.
The diesel particulate filter system
collects particulates from the
exhaust gases to minimise
discharge of soot to the
atmosphere.
To prevent clogging of the filter, the
soot particles are burnt off at regular
intervals through a self cleaning
process where additional fuel is
injected into the engine cylinders to
increase the particulate filter
temperature to approximately
600°C.
Several factors including fuel
consumed, hours of engine
operation, and distance travelled are
monitored by the Engine Control
Module (ECM). The self-cleaning
occurs approximately once per tank
of fuel.
This allows deposited soot to be
oxidised or burnt off and converted
to carbon dioxide (CO2).
This process usually takes between
10 and 15 minutes but may take up
to 30 minutes depending on driving
conditions.
Increased engine speed at idle and
emissions of odours and smoke are
considered to be normal conditions
during the self cleaning process.
Fuel consumption may also be
higher during this period.
Under certain driving conditions,
such as stop-start traffic, the filter
cannot clean itself. A message is
displayed when the DPF is dirty and
needs to perform a self cleaning.
See
For the filter to clean itself, the
vehicle must be continuously driven
until the message extinguishes. This
can take up to 30 minutes.
The message extinguishes as soon
as the self-cleaning operation is
complete. Turning the engine off
while the message is displayed will
