Gallas got out of the buggy and waved to his team-mates to indicate he had not been hurt in the crash, a Reuters photographer at the scene reported.
The defender escaped with just a graze on his left hand, a team spokesman said.
The former Arsenal skipper is recovering from a calf injury and has been back in training for several days, suggesting he will be fit to take part in the June 11-July 11 finals in South Africa.
France, in a week-long training camp at this scenic ski village, have been taking part in activities such as hiking up a glacier and an introduction to biathlon, a mixture of cross-country skiing and shooting.
Bizarre Jose Mourinho statement aims to pre-empt punishment after Fenerbahce boss clashes with Galatasaray counterpart
'Andy Robertson has a decision to make as a player, where you either roll your sleeves up and give someone great competition or you accept decisions and say that your time is done.' Alan Shearer on the conundrum facing Arne Slot's Liverpool
