Help that never clocks out.
Mack OneCall connects drivers and fleets to real people 24/7—linking directly with GuardDog® Connect to turn alerts into action and keep every truck earning.
Connect your operation to nonstop support
When an issue arises, Mack OneCall connects drivers with live Mack experts day or night. Our team monitors GuardDog® Connect alerts, coordinates roadside service, and manages repairs through Mack ASIST, ensuring every step happens quickly and seamlessly.
It’s more than a helpline—it’s a connected support network built around your fleet. By combining technology with human expertise, OneCall helps fleets recover faster, stay informed, and prevent downtime from turning into lost revenue.
Smarter uptime through
live coordination
Built for the people who answer the call
Mack OneCall empowers the drivers, dispatchers, and support teams who keep freight moving — connecting real people with real solutions, any time of day.
Driver — gains confidence knowing help is only a call away.
Fleet manager — gets instant visibility into alerts, repair progress, and roadside updates.
Business owner — keeps operations running smoothly with around-the-clock expert support.
Part of the Mack Integrated Uptime Suite
Connected solutions that predict, prevent, and resolve issues faster — keeping every truck earning and every operation efficient.
Uptime Solutions
- Detect issues early with real-time vehicle monitoring.
- GuardDog® Connect
- Get 24/7 roadside and technical support from Mack experts.
- Mack OneCall
- Manage repairs and communication between fleets and dealers.
- Mack ASIST
- Install remote software updates to save time and prevent downtime.
- Over-the-Air Updates
