Firmware version 5.16.16 includes improvements to how the speed filter is synchronized with other system components. On vehicles with poor or unstable CAN signal quality, this change may produce unexpected results.
Vehicles with frequent CAN signal dropouts, unstable wiring, or wireless CAN setups are most at risk. Vehicles running older CAN scripts are at higher risk.
Who may be affected
Vehicles most likely to experience issues are those with:
- Frequent CAN signal dropouts
- Unstable wiring
- Wireless CAN setups
- Older CAN scripts
What you may observe
On affected installations, you may notice an increase in harsh events being recorded. This can have a knock-on effect on driver scoring, benchmarks, and monitored event data. If you are not seeing any unexpected changes, no action is required.
Recommended mitigation
If you are observing the effects described above, two options are available:
- Upgrade to a newer CAN script. Check with your configuration team before doing so, as newer scripts may require changes to associated configuration parameters.
- Have a technician inspect the CAN installation to identify and resolve the underlying cause of signal dropouts. This is especially recommended for wireless CAN setups.
Please reach out to our support team if you would like help identifying whether your vehicles may be affected.