Vehicle health and conditions monitoring: catching issues before they cost you
Breakdowns rarely happen without warning. Long before a car stops operating, board voltage starts drifting, GPS quality declines, or diagnostic fault codes appear. Vehicle health monitoring helps fleet managers detect these signals early and act before downtime occurs.
The new Conditions dashboard brings these signals into one view. You'll find it inside Dashboards, a free app that brings the most important fleet data into three ready-to-use views inside the Navixy telematics platform. It gives fleet managers continuous visibility into every vehicle's condition instead of reacting only after something breaks. The dashboard is currently in beta, so if something's missing or confusing, your feedback shapes what ships next.
Read a blog post to learn more about the Dashboards app.
Fleet health at a glance
One glance tells you whether issues are becoming more frequent across the fleet, before you drill into any single vehicle.
The dashboard opens with fleet-wide KPIs: Total registered vehicles
- Active and inactive vehicles
- GPS degradation events
- SOS events
- Seatbelt events
- Diagnostic Trouble Code (DTC) events
What vehicle health monitoring signals tell you
GPS degradation means a vehicle is losing reliable positioning, either because the satellite count drops below a safe threshold or HDOP shows poor satellite geometry. A top-10 chart shows which vehicles lose coverage most often, pointing to trackers or installations that need attention.
Board and battery voltage are compared to each vehicle's own seven-day baseline rather than a fixed threshold, since voltage systems vary across a mixed fleet. A deviation within 10% counts as Normal, between 10% and 20% as a Warning, and beyond 20% as Critical. A sustained downward trend may indicate a degrading battery, charging-system issues, or increased electrical load and should prompt inspection.
DTC events come from the OBD II / CAN bus and are classified by severity, so a new one is a cue to check that specific vehicle. Code P2188, for example, means the fuel mixture is running too rich at idle, which can point to a leaking injector, a faulty oxygen sensor, or a fuel pressure regulator problem: cheap to fix now, expensive to ignore.
SOS and seatbelt events cover safety rather than mechanics: an SOS button press, or a vehicle that started moving with the driver unbelted.
Mileage and speed trends over the past seven days help spot vehicles nearing their next service interval without manually checking odometers.
From alert to action
The Latest Diagnostics table consolidates the vehicle health monitoring data that matters most: each vehicle's recent battery status, GPS quality, mileage, RPM, top speed, active DTCs, and safety events, all reviewable from one screen rather than switching between reports. The GPS and Battery Power Supply Health Monitors track those same readings over time and flag vehicles that are drifting away from their own normal, so declining fleet health shows up before it turns into downtime.
Here's what that looks like day to day:
- A vehicle is missing from Latest Diagnostics for several days straight: its tracker has stopped reporting, most likely because of a dead device battery, lost signal, or a wiring fault that needs an on-site check.
- The Battery Power Supply Health Monitor marks a vehicle Critical: its power supply is degrading, and it's a strong candidate to strand a driver unless the battery or alternator gets checked soon.
- A vehicle shows up in Objects with Active Fault Codes: the OBD system has already flagged a real problem, so it should move to the front of the maintenance queue rather than wait for its next scheduled service.
- A vehicle's GPS Health Monitor status slides from Normal toward Warning over the week: its signal quality is getting worse, which usually points to a loose antenna or a mounting problem rather than a one-off dead zone.
What vehicle health monitoring can and can't do
As a vehicle health monitoring tool, the Conditions dashboard doesn't replace a maintenance system, and it doesn't predict failures. It brings diagnostics, power supply health, GPS quality, and telemetry into one place, so operators catch issues earlier, prioritize which vehicles need attention, and act on current fleet health instead of waiting for failures to occur.
Contact our team if you do not have the Fleet Health dashboard in your account yet, or if you want to activate IoT Query and build a dashboard around your own KPIs.