DeVille V8-4.6L VIN Y (1998)
Driver/Vehicle Information Display: Description and Operation
VEHICLE OVERSPEED
The IPC displays the VEHICLE OVERSPEED message under the following conditions:
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The vehicle speed data that the PCM sends over a class 2 serial data line indicates that the vehicle exceeds 120 km/h.
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The Saudi/Gulf states that the IPC override option is set.