Questar Total Fleet Health Management
Fleet Health Management. Complete. Actionable. At Scale.
Questar’s Total Fleet Health Solution transforms multi-brand vehicle diagnostics and real-time telematics into proactive maintenance intelligence. Built for modern commercial fleets, our platform helps you reduce downtime, control maintenance costs, and extend asset life across hundreds or tens of thousands of vehicles.
We move your operation beyond reactive “firefighting” to an optimized, data-driven smart maintenance process.
A 360° View of Vehicle Health
Questar continuously monitors every vehicle in a fleet drilling down into the systems that matter most, whether it be Engine, Transmission, Battery, Brakes, Emissions, Electrical or a system you customize. By normalizing data across makes, models, and model years, Questar provides a unified view of every vehicle in the fleet in realtime.
It scales to monitor thousands of vehicles alerting to abnormal behavior and providing early warning signals for individual vehicle issues telling you in clear actionable terms, what’s wrong, what will happen, what to schedule for maintenance.
Advanced Vehicle Health Diagnostics.
Questar continuously monitors a broad spectrum of vehicle systems including engine, transmission, battery, tires, air systems, brakes, emissions, electrical components, and more creating a complete, always-on view of vehicle health.
This monitoring feeds a real-time, fleet-wide dashboard that gives fleet managers immediate visibility into everything happening across their vehicles, with events intelligently prioritized by severity so the most critical issues rise to the top.
Our platform normalizes diagnostic and telematics data across vehicle makes, models, model years, and even disparate telematics ecosystems, delivering consistent, comparable insights regardless of fleet complexity.
The result is smarter maintenance planning, fewer unexpected breakdowns, reduced operational risk, and improved vehicle uptime turning complex diagnostics into confident, proactive decision-making.
Questar AI Speaks Your Language
Questar cuts through the noise by utilizing Large Language Models (LLMs) and Agentic AI to translate complex diagnostic trouble codes (DTCs) into plain English.
Building on this clarity, Questar’s Predictive Failure Analytic, powered by advanced AI uncovers the true root cause behind vehicle issues, explaining not only what went wrong, but why it happened and what triggered it.
Rather than reacting to isolated fault codes, Questar applies data-driven prediction models to calculate failure probability and estimate time-to-failure, giving fleets foresight into what is likely to fail and when.
This intelligence is paired with precise, prescriptive steps for resolution, guiding technicians and fleet managers to address the underlying cause instead of the symptom.
Know Your Costs and Savings Upfront
Questar’s AI-driven fleet health solution prices the cost of failures that can be prevented. By identifying issues early, Questar gives real dollar terms to the cost to fix problems proactively. This gives fleet managers clear visibility into costs, savings, and impact before scheduling service.
Engineered for Total Fleet Health
Calculate Your Potential Savings
Fleet health is about the bottom line. Use our interactive ROI calculator to see exactly how Questar can transform your operational costs. By analyzing your specific data on unplanned downtime, emergency repairs, fuel efficiency, and labor allocation, we’ll provide a customized estimate of the annualized savings waiting for your fleet.
FAQ
What is Questar’s Total Fleet Health Solution?
Questar’s Total Fleet Health Solution is one of the most advanced fleet health management and predictive health platform available in the market. Questar’s solution transforms telematics and vehicle data into actionable insights. It helps fleets detect issues early, reduce unplanned downtime, lower maintenance costs, and manage vehicle health proactively at scale.
Which types of fleets is this solution designed for?
The solution is built for commercial fleets of all sizes, including delivery, logistics, service, rental, and mixed-use fleets. It is particularly well-suited for large, distributed fleets operating across regions and vehicle types.
How far in advance can Questar predict vehicle failures?
Questar provides a significant strategic advantage by allowing you to predict failures 2–4 weeks out. By identifying risks weeks ahead, maintenance directors can bundle repairs with regular preventive maintenance (PM) visits, dramatically reducing roadside failures and preventing shop backlogs before they occur.
Does Questar support mixed fleets and multiple vehicle types?
Yes. Questar is designed to support mixed fleets, normalizing data across different vehicle makes, models, and years to provide consistent health insights across the entire fleet.
How does Questar integrate with existing telematics platforms?
Questar integrates natively with leading telematics providers such as Geotab or Webfleet; and is built on an API-first architecture. This allows fleets to leverage existing hardware and data sources without additional installations or disruption.
How is this different from standard fault-code monitoring?
Traditional fault-code monitoring is reactive and limited. Questar goes beyond fault codes by analyzing patterns, trends, and early indicators to predict potential failures – helping teams act before issues result in downtime or costly repairs.
How long does it take to deploy?
Deployment is fast and lightweight. Since no additional hardware is required, most fleets can be onboarded and start seeing insights within a short timeframe, depending on fleet size and data availability. In addition, to access premium fleet health insights and improved system coverage, our fleet customers have the option to deploy our purpose-built Questar Vehicle Health Telematics Unit and unlock incremental value.
How accurate are the predictive insights?
Questar’s predictive models are trained on large-scale, real-world fleet data and continuously refined. The system is designed to balance early detection with precision, reducing false positives while ensuring critical issues are surfaced in time.
Is the solution secure and compliant with enterprise requirements?
Yes. Questar’s platform is built with enterprise-grade security, including secure data ingestion, access controls, monitoring, and operational safeguards to meet IT and compliance expectations.
Can the solution scale as our fleet grows?
Absolutely. Questar’s cloud-native architecture is designed to scale seamlessly as fleet size, vehicle diversity, and data volume increase—without added operational complexity.
How does this solution deliver measurable ROI?
By reducing unplanned downtime, avoiding emergency repairs, improving maintenance efficiency, and extending vehicle life, fleets see measurable improvements in uptime, cost control, and asset utilization.