FORD 1999 F-550 v.1 - Manual (Page 14)

Key-in-ignition warning chime
Sounds when the ignition key is left in the ignition in the OFF/LOCK or
ACC position and the driver’s door is opened.
Headlamps on warning chime
Sounds when the headlamps or parking lamps are on, the ignition in the
OFF position (and the key is not in the ignition) and the driver’s door is
opened.
GAUGES
Fuel gauge
Displays approximately how much
fuel is in the fuel tank (when the
ignition is in the ON position). The
fuel gauge may vary slightly when
the vehicle is in motion. The ignition
should be in the OFF position while
the vehicle is being refueled. When
the gauge first indicates empty,
there is a small amount of reserve
fuel in the tank. When refueling the
vehicle from empty indication, the amount of fuel that can be added will
be less than the advertised capacity due to the reserve fuel.
0
0 0 0 0
0 0 0 0 0
MPH
20
km/h
40
60
80
100
120
140
160
0
10
20
30
40
50 60
70
80
90
100
LOW
FUEL
DOOR
AJAR
BRAKE
FUEL
RESET
LOW
RANGE
4 X 4
!
ABS
+ -
L
E
F
H
RPM 1000 X
0
1
2
3
5
6
4
P R N 2 1 8
C
18
H
D
FUEL FILL
SERVICE
ENGINE
SOON
E
F
Instrumentation
14