Consider a 2018 school bus that has the DPF warning lamp Illuminated. The amber DPF warning light is on steadily. What is
the most correct
service recommendation?
(A) Drive the vehicle under load at a moderate speed for 20-40 minutes.
B) Use a dash switch to initiate a stationary regeneration.
C Use OEM software to initiate an active regeneration.
(D) Tow the vehicle to a service location and replace the DPF.