The latest hike averaged $141 on Chevrolet, Oldsmobile, Pontiac and Cadillac models, an Automotive News analysis finds.
Combined with an earlier increase of $286, GM car prices are about $427, or 2.1 percent, higher than at the end of the 2001 model year, Automotive News estimates.
The figures are before adjustments for 2001 optional equipment that was made standard for 2002 models.
Those adjustments will cut the dollar amount and the percentage amount.
Price increases on the four makes of 2002 GM cars studied are: Chevrolet, $108 now, $280 earlier; Oldsmobile, $138 now, $350 earlier; Pontiac, $144 now, $267 earlier; and Cadillac, $341 now, $736 earlier.
Elsewhere in pricing, Nissan's luxury division, Infiniti, shaved $965 from the price of its I35 sedan. The 2002 model is $29,295, including freight.
Toyota raised its Highlander sport wagon $395 and hiked the small Echo sedans $30 and $90.
The Toyota hikes include a $30 bump in the destination charge.