According to the manual you should have seen some messages in the DIC telling you to keep driving if possible when it has failed to complete a regen a number of times...if the driver does not heed that warning then you get the CEL to have a manual regen done.
And yes this is why newer diesels are cleaner than DI gasoline...because of the DPF it cleans the particulates and burns it to CO2... where DI gasoline spews it out. there are talk of GPF and legislation in Europe at least being thought to require that.
Here is the manual info about the Regen...(page 29 says it should take 30 mins of driving).
From page 225 in the manual:
If the vehicle is used for numerous
short trips or extended slow-speed
operation, the engine computer may
not be able to adequately heat up
the exhaust system to clean the
DPF effectively. The engine
computer has been designed to
continuously monitor the condition
of the DPF. When the engine
computer detects that the DPF is
nearly full of particulates and that
the vehicle is not being operated in
a manner that would allow effective
automatic DPF cleaning, a Driver
Information Center (DIC) message
will display. Start the cleaning
process as soon as possible.
To activate the cleaning process,
continue driving safely, and keep
vehicle speed above 50 km/h (30
mph) until the warning message in
the DIC turns off.
If the vehicle continues to be driven
with the DPF warning message on,
and the exhaust filter is not cleaned
as required, the malfunction
indicator lamp and the ENGINE
POWER IS REDUCED message
will come on. Dealer service is
2018 equinox 1.6l Diesel LT, Hecho en Mexico, julio 2017
Last edited by tizan; 11-29-2018 at 04:05 PM.