More than 3,000 flights are cancelled as snow and frigid winds slam into eastern North America.
Forecasters say there could be disruption to transport and power supplies across a wide area.
It says it will reduce the price of replacements and will issue battery-monitoring software.
Police warn of hazardous driving conditions on roads, as thousands of homes are left without power.
Alberto Fujimori, 79, is being released by current President Pedro Pablo Kuczynski on health grounds.
Some 200 people have died in flash floods and mudslides brought by Tropical Storm Tembin.