Eight different priorities are differentiated in the events on the event/fault memory. Priorities 1 and 2 count as errors, 3 and 4 as faults, priorities 5 to 8 provide information while priority 7 is an early warning message.
| Priority | Symbol | Lamp status at driver's workplace | Description |
| 1 |
|
Red Lamp |
A serious fault that impairs the roadworthiness and/or the safety. Stop the vehicle immediately! Transmission switches to the neutral position. |
| 2 |
|
Amber Lamp |
An error has occurred that requires an immediate visit to the workshop. Driving to the repair shop - possibly with restricted functions - is possible. |
| 3 |
|
A minor fault has occurred that causes a recommended action to be displayed before starting to drive. The vehicle performance is not affected or is only slightly impaired. | |
| 4 |
|
Minor fault that causes an instruction to be displayed during the next visit to the repair shop. The vehicle performance is not affected. | |
| 5 |
|
Indicates that the transmission/retarder is being operated outside the permissible range. (e.g. overtemperature). This does not represent a malfunction of the transmission. | |
| 6 |
|
Temperature display | Indicates that the transmission is being operated outside the optimum range. (e.g. increased temperature). This does not represent a malfunction of the transmission. |
| 7 |
|
Service display | Message of the early warning system. Information about wear or maintenance work. |
| 8 |
|
Developer/experimental information. |