"Having consulted the competitors groupped at Fiambala’s marathon bivouac, the race direction has taken the decision to cancel the 12th special stage for bikes and quads," a statement said.
Austrian Matthias Walkner is leading the motorcycle standings on a KTM, 32 minutes clear of Argentina's Honda rider Kevin Benavides.
The 12th stage from Fiambala to San Juan was scheduled as a 375km timed leg and 348km of liaison. The rally ends in Cordoba on Saturday.
(Reporting by Alan Baldwin, editing by Pritha Sarkar)