Ram Trucks 2015 ProMaster Commercial - Diesel Supplement - Manual (Page 56)

Instrument Cluster Messages
Messages will be displayed in the instrument cluster to
alert the driver when certain unusual conditions occur.
These messages are described below.
MESSAGE DESCRIPTION
Service Transmission When the ignition key is turned to ON/RUN/MAR, the Transmission
Fault Indicator light turns on and should go off after a few seconds.
The Transmission Fault Indicator illuminates either steady or blinking
(together with this message and a buzzer) to indicate a transmission
fault.
Contact your authorized dealer if the message continues to appear.
Reduce Gear Changes This message indicates that the driver is operating the transmission
incorrectly.
Incorrect use (by the driver) could automatically activate a procedure
for protecting the system.
Contact you authorized dealer if the message continues to appear.
54 STARTING AND OPERATING