Issue Description

The Events section in Fleet Positioning displays vehicle-generated notifications based on signals received from vehicle systems. These events provide information about vehicle status, active warnings, faults, maintenance needs, and operational conditions. Which warnings to receive can be chosen in Settings in the Fleet positioning service in MyScania.

Customers may contact support asking:

• What does a specific event, warning, fault, or alarm mean?
• Why was an event triggered?
• When is an event generated?
• What actions should be taken after receiving an event notification?

Resolution / Workaround

Support agents should explain that:

• Events are generated automatically by vehicle systems.
• Each event has a specific trigger condition.
• Events are informational and do not always indicate a vehicle breakdown.
• Some events represent warnings requiring attention, while others simply report a status change.
• Support can explain the meaning of the event but cannot diagnose vehicle faults remotely unless additional vehicle diagnostics are available.

Use the event definitions below when responding to customers.

Event Definitions

Engine

Serious Engine Fault

What: Indicates a serious engine malfunction.

Why: The vehicle detected a critical engine fault.

When: Triggered when the red STOP lamp remains active for at least one second.

High Engine Temperature

What: Engine coolant temperature warning.

Why: Engine temperature has exceeded normal operating limits.

When: Triggered when coolant temperature telltale status changes.

Blocked Engine Air Filter

What: Indicates restricted airflow through the engine air filter.

Why: The filter may be dirty or clogged.

When: Triggered when air filter status changes to reduced functionality or clogged.

Coolant Level Low

What: Low engine coolant level warning.

Why: Coolant level has fallen below the expected range.

When: Triggered when coolant level telltale status changes.

Oil Pressure Low

What: Low engine oil pressure warning.

Why: Insufficient oil pressure has been detected.

When: Triggered when oil pressure falls below acceptable levels.

Low Clutch Fluid Level

What: Critical clutch fluid warning.

Why: Clutch fluid reservoir level is low.

When: Triggered when clutch fluid reaches a critical threshold.

Faults in the Nitrogen Oxide Check for Exhaust Gases

What: Emissions monitoring system warning.

Why: A fault has been detected in the NOx emissions monitoring system.

When: Triggered when engine malfunction telltale status changes.

Torque Reduction Activated

What: Engine power limitation has been activated.

Why: Usually caused by emissions-related restrictions or high-temperature protection.

When: Triggered when engine torque limit status changes.

Reductant Level Low

What: AdBlue/DEF level warning.

Why: Exhaust after-treatment reagent level is low.

When: Triggered when reagent status changes to low, pending limitation, or empty.

Information Events

Change of Ignition Voltage

What: Ignition status notification.

Why: The vehicle ignition was switched on or off.

When: Triggered whenever ignition status changes.

Change of Driver

What: Driver change notification.

Why: A different Driver 1 identification has been registered.

When: Triggered when the driver ID changes.

Bus Door Open

What: Bus door status notification.

Why: One or more doors were opened or closed.

When: Triggered when door status changes.

Power Take-Off Activated

What: PTO engagement notification.

Why: PTO equipment has been activated or deactivated.

When: Triggered when PTO state changes.

Change of Battery Charging

What: Battery charging status notification.

Why: Vehicle charging state changed.

When: Triggered when cable charging starts or stops (SESAMM7 vehicles only).

Brake System

Worn Brake Linings

What: Brake wear warning.

Why: Brake lining wear threshold has been reached.

When: Triggered when brake lining wear warning status changes.

High Brake Temperature

What: Brake overheating warning.

Why: Brake temperatures exceeded normal limits.

When: Triggered when brake temperature warning status changes.

EBS Fault

What: Electronic Braking System warning.

Why: A fault has been detected in the braking system.

When: Triggered when brakes telltale status changes.

ABS Fault on Trailer

What: Trailer ABS warning.

Why: A fault has been detected in the trailer ABS system.

When: Triggered when ABS telltale status changes.

Retarder Fault

What: Retarder system warning.

Why: A fault or abnormal condition has been detected in the retarder system.

When: Triggered when retarder telltale status changes.

Electrical System

Alternator Not Charging

What: Charging system fault.

Why: The starter battery is not receiving charge while the vehicle is operational.

When: Triggered when a power generation malfunction is detected.

Battery Charging Was Unsuccessful

What: Battery charging warning.

Why: The battery charging process did not complete successfully.

When: Triggered when battery charging telltale status changes.

Low State of Charge – Limp Home Mode

What: Critical battery charge warning.

Why: Battery charge has become very low.

When: Triggered when battery state of charge activates limp-home mode.

Clutch and Transmission

High Gearbox Temperature

What: Transmission overheating warning.

Why: Gearbox oil temperature exceeded normal operating range.

When: Triggered when transmission temperature telltale status changes.

Clutch Overloaded

What: Clutch overload warning.

Why: Excessive clutch load has been detected.

When: Triggered when clutch overload condition changes.

Exhaust System

Regeneration

What: Diesel particulate filter regeneration notification.

Why: The DPF is cleaning accumulated soot.

When: Triggered when regeneration starts, is manually activated, or completes.

Regeneration of the Particulate Filter is in Progress

What: Active regeneration notification.

Why: DPF cleaning process is currently running.

When: Triggered while regeneration is ongoing.

Torque Reduction Activated

What: Engine power limitation due to emissions or temperature conditions.

Why: Vehicle protection or emissions control measures are active.

When: Triggered when torque limit status changes.

Communication and Connection

Maintenance Should Be Carried Out

What: Service reminder.

Why: Vehicle has exceeded the configured service threshold.

When: Triggered when the service distance warning changes.

Driving Without CAN

What: Communication network warning.

Why: Vehicle is operating without valid CAN communication.

When: Triggered when driving occurs without CAN network connectivity.

Tachograph Fault

What: Tachograph warning.

Why: Possible tachograph tampering or abnormality detected.

When: Triggered when tachograph tampering is detected.

Driving Without GPS Signal

What: GPS connectivity warning.

Why: Vehicle has operated without GPS coverage.

When: Triggered after driving more than 10 km without GPS signal.

Security

Driving Without Safety Belt

What: Seatbelt warning.

Why: Driver seatbelt was not fastened while driving.

When: Triggered after driving above 30 km/h for more than 5 minutes without a fastened seatbelt.

General

Tyre Pressure Deviations

What: Tyre pressure monitoring warning.

Why: Abnormal tyre pressure or sensor fault detected.

When: Triggered when tyre pressure detection state changes.

Lighting Fault

What: Vehicle lighting system warning.

Why: A lighting malfunction has been detected.

When: Triggered when lighting malfunction status changes.

Headlamp Fault

What: Headlamp malfunction warning.

Why: One or more headlamps are not functioning correctly.

When: Triggered when a headlamp failure is detected.

Tools Involved

• MyScania Portal – Fleet Positioning
• Vehicle telematics systems
• Vehicle event and fault reporting services

Escalation 

Escalate to 2nd-line support if:

• Event descriptions do not match vehicle behaviour.
• Customers report repeated events with no apparent vehicle issue.
• Events are missing or not updating in Fleet Positioning.
• There are suspected telematics or communication issues affecting event reporting.

When escalating, provide:

• Vehicle VIN
• Event name
• Date and time of occurrence
• Screenshots from Fleet Positioning
• Customer description of the issue

User cases/related to ticket no

Tickets solved via instruction - previous user cases about the same topic.