Ford 2008 Explorer Owner's Manual page 457

Instrument Cluster
Optional instrument cluster
Type A
Type B
Warning lights and gauges can alert you to a vehicle condition that may
become serious enough to cause expensive repairs. A warning light may
illuminate when a problem exists with one of your vehicle's functions.
Many lights will illuminate when you start your vehicle to make sure the
bulb works. If any light remains on after starting the vehicle, refer to the
respective system warning light for additional information.
Note: Some warning lights will display in the message center as words
and function the same as the warning light.
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2008 Explorer (exp)
Owners Guide (post-2002-fmt)
USA (fus)