Twenty-four minor accidents stemming from the rollaway issue have been reported.
Toyota is calling back about 615,000 Sienna minivans in the United States to address a problem that could cause a rollaway risk.
Affected vehicles include Siennas from the 2004-05 and 2007-09 model years, all of which were built at Toyota's plant in Princeton, Indiana.
Toyota says that due to possible damage to the shifter lock solenoid, the vehicles could shift out of park and roll off without the driver depressing the brake pedal.
The automaker is notifying owners by way of first class mail, and dealers will remedy the situation by replacing the shift lock solenoid with a new unit.
Speaking with Reuters, Toyota spokeswoman Cindy Knight said the company has received reports of 21 minor accidents stemming from the issue in the United States along with an additional three accidents in Canada. Bruises and other small injuries were reported in conjunction with three incidents.
Toyota is also recalling 56,000 Siennas in Canada, 23,000 in Mexico, 300 in Germany and 10 in Guatamala over the same defect.