Severe Usage Condition Codes (Read This First)

Severe Usage Conditions
A: Repeated short trips.
B: Driving on rough and/or muddy roads.
C: Driving on dusty roads.
D: Driving in extremely cold weather and/or salted roads.
E: Repeated short trips in extremely cold weather.
F: not used.
G: not used.
H: Towing a trailer.