What does the Cold Boost function do and how long does it stay on?
The Cold Boost function is used to quickly freeze food and can be turned on or off by pressing the Cold Boost button. The function turns off automatically after 3 hours if the temperature drops below -13°F (-25°C), or after 24 hours if the temperature stays above -13°F (-25°C).
From the official Graco Snugride Snuglock 35 Dlx manual, page 8
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