How do I stop the high temperature alarm from sounding?
Press any button to stop the high temperature alarm. The alarm activates when the interior temperature stays above 59°F (15°C) for 36 hours in Refrigerator mode, or above 18°F (-8°C) for 36 hours in Freezer mode. After silencing the alarm, check that the appliance is in a well-ventilated room, the door closes and seals properly, and the room temperature is not too high.
From the official Graco Snugride Snuglock 35 Dlx manual, page 8
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