The slump saw sales fall from 93,400 to 73,000 units.
The biggest fall was in saloon car sales, at 29,242 units, down 27.7 per cent, while sales of vehicles for commercial purpose stood at 43,826 units, a decline of 17.4 per cent.
It said sales of one-tonne pick-up trucks dropped to 35,644 units, down 22.6 per cent.
It attributed the dive in sales of peersonal vehicles (as opposed to commercial) to high household debt which has slowed spending by the household sector.
The year-to-date figure is even worse, with sales during the first 11 months this year totalling at 792,000 units, from 1,216,000 the first 11 months of 2013 – a fall of 34.9 per cent – Toyota said.
The slump is attributed to low consumer confidence. The Consumer Confidence Index in November was still in retreat due to the public’s worries over global economics.