Mercury 2000 Grand Marquis Owner's Manual page 86

Controls and features
Keep vehicle doors and
luggage compartment
locked and keep keys out of a
child's reach. Unsupervised
children could lock themselves in
an open trunk and risk injury.
Children should be taught not to
play in vehicles.
On hot days, the temperature in the trunk or vehicle interior can
rise very quickly. Exposure of people or animals to these high
temperatures for even a short time can cause death or serious
heat-related injuries, including brain damage. Small children are
particularly at risk.
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