Baby Bullet Heat Plan

Due to extreme heat Caltrain has suspended Baby Bullet service today, September 8, 2022. Please plan to use Limited and Local trains.

This proactively allows us to maintain consistent and reliable service throughout the day. Special event service for the Lady Gaga concert at Oracle Park will operate as planned.

Our diesel fleet is aging and is more prone to mechanical issues caused by extreme heat. The current fleet will largely be replaced in 2024 by new electric trains (

Please check this page as the heat wave may continue to impact Caltrain service for the rest of the week. Crews will continue to monitor conditions.

Heat Restrictions: Federal regulations mandate trains slow down in conditions above 90 degrees. This can also impact service.

Check visual message signs, the Caltrain website Alerts Tab and follow us on Twitter @CaltrainAlerts for real-time updates.

We appreciate your patience in this time.