Riviera V6-3.8L SC VIN 1 (1995)
Driver Information Center: Description and Operation
HVAC Overheated and Low Refrigerant Warning
THE A/C OFF OVERHEATED message is displayed when the PCM detects an AC overheating condition. The DIC displays the LOW A/C
REFRIGERANT message when the PCM determines the refrigerant is low. The DIC receives the HVAC information over the serial data line from the
PCM via the IPC.