Ford Mustang (2005-2014) Owners Manual: Safety belt warning light and indicator chime

This lamp illuminates and an audible warning will sound if the driver’s safety belt has not been fastened when the vehicle’s ignition is turned on.
Conditions of Operation

Fastening the safety belts
The front outboard and rear safety restraints in your vehicle are
combination lap and shoulder belts.
The presenter arm (available on the coupe only) is intended to improve
access to the safety belt ...
Safety belt-minder
This feature supplements the safety belt warning function by providing
additional reminders by intermittently sounding a chime and illuminating
the safety belt warning light when the driver’s or fro ...
Other materials:
General information on radio frequencies
This device complies with part 15 of the FCC Rules and with Industry
Canada license-exempt RSS standard(s). Operation is subject to the
following two conditions: (1) This device may not cause harmful
interference, and (2) This device must accept any interferen ...
Pinpoint Tests
PINPOINT TEST A: NO COMMUNICATION WITH THE INSTRUMENT
CLUSTER
Test Step
Result / Action to Take
A1 CHECK THE BATTERY POWER SUPPLY TO THE INSTRUMENT
CLUSTER
YesGO to A2 .
No
REPAIR the circuit.
TEST the system
for normal
operation.
...
Climate Control System (Description and Operation)
WARNING: To avoid accidental deployment and possible injury, the air
bag system
backup power supply must be depleted before repairing any climate control
components. To
deplete the backup power supply, disconnect the battery ground cable and wait
one minute ...
