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I picked up a new 6-speed '18 diesel hatch yesterday and already ran into an emission system fault. The dealer did an out of state trade so the car had about 200 miles on it and I put about a hundred more miles on it since yesterday. On the way back to the dealer tonight to pick up a car I left there, the new Cruze set a P20BF emission system check engine light with the reduced vehicle speed in xx miles warning.
Not having a scan tool with me I called OnStar and they ran a diagnostic which showed the P20BF. This appears to be for reductant heater circuit low (i.e. DEF tank heater faulty, short circuit or circuit open). One of the two times GM replaced the DEF tank on my first gen Cruze diesel was for the faulty tank heater so I was optimistically hoping to avoid problems on the new powertrain. With any luck this is just a one-off problem and not a systemic issue like the first gens.
I'll post up what they find after the service department takes a look tomorrow.
Not having a scan tool with me I called OnStar and they ran a diagnostic which showed the P20BF. This appears to be for reductant heater circuit low (i.e. DEF tank heater faulty, short circuit or circuit open). One of the two times GM replaced the DEF tank on my first gen Cruze diesel was for the faulty tank heater so I was optimistically hoping to avoid problems on the new powertrain. With any luck this is just a one-off problem and not a systemic issue like the first gens.
I'll post up what they find after the service department takes a look tomorrow.