Trailer Tracking vs. Truck Tracking: What's the Difference and Why Does It Matter?
3 minute read
Author: M.S.
When it comes to fleet visibility, most trucking companies already know the importance of tracking their trucks. But what about the trailers?
Just because you know where your truck is doesn't necessarily mean you know where its trailer is. And when you're managing dozens or even hundreds of trailers across different locations, that missing information can create some serious headaches.
That's where understanding the difference between truck tracking and trailer tracking becomes important.
While the two technologies work together, they serve different purposes. Let's break down how each works, why both matter, and what they mean for your fleet.
What Is Truck Tracking?
Truck tracking uses GPS technology and telematics to monitor the location and activity of a truck.
Most modern fleets use electronic logging devices (ELDs), GPS systems, or telematics platforms to keep track of their vehicles.
Depending on the technology, truck tracking can provide information such as:
Real-time truck location
Driver activity and hours of service
Vehicle movement and trip history
Engine diagnostics and vehicle performance
Routes and estimated arrival times
For dispatchers, this information is incredibly useful. It helps them coordinate drivers, monitor deliveries, and respond to delays.
But there's one important limitation: truck tracking follows the truck, not necessarily the trailer.
If a driver drops a trailer at a warehouse and leaves to pick up another load, the truck's GPS will follow the driver. The trailer stays behind.
Without separate trailer tracking, dispatch may have to rely on manual updates to know exactly where that equipment is.
What Is Trailer Tracking?
Trailer tracking uses GPS devices and asset-tracking technology to monitor the location and movement of trailers independently of the trucks pulling them.
Unlike truck tracking, trailer tracking can continue providing location updates even when a trailer is disconnected from a tractor, depending on the device, its power source, and connectivity.
This is particularly useful for carriers operating drop-and-hook freight, managing trailer pools, or leaving equipment at customer facilities.
GPS trailer tracking systems can help fleets:
Locate trailers across multiple yards and customer facilities
Monitor when trailers arrive at or leave specific locations
Review trailer movement history
Identify equipment that has been sitting idle
Improve trailer utilization and availability
Monitor reefer temperatures when supported by the tracking technology
For example, SkyBitz's trailer tracking solutions provide asset-level visibility, helping fleets monitor equipment location, utilization, and movement independently of the truck.
Trailer Tracking vs. Truck Tracking: Key Differences
Although both technologies use GPS, the information they provide is different.
Feature | Truck Tracking | Trailer Tracking |
Primary purpose | Monitor trucks and drivers | Monitor trailers and equipment |
GPS location | Follows the truck | Follows the trailer |
Detached equipment | Doesn't independently track the trailer | Can track detached trailers |
Driver information | Often includes HOS and vehicle data | Primarily focuses on trailer data |
Geofencing | Monitors truck arrivals and departures | Monitors trailer arrivals and departures |
Main benefit | Driver and vehicle visibility | Equipment visibility and utilization |
The biggest difference? Truck tracking tells you where your power unit is. Trailer tracking tells you where your equipment is, even when the two aren't together.
Why Trailer Tracking Matters for Fleet Operations
1. Less Time Spent Looking for Trailers
Picture this: a dispatcher needs an empty trailer for a pickup, but the last recorded location is from yesterday.
Now someone has to call the driver, contact the warehouse, or check multiple systems just to figure out where it is.
With GPS trailer tracking, dispatchers can look up the trailer's latest reported location instead.
That means fewer phone calls, less guesswork, and more time spent keeping freight moving.
2. Better Visibility Into Detention and Dwell Time
Trailers don't always move as quickly as planned.
A trailer might sit at a customer facility waiting to be unloaded, or remain in a yard longer than expected.
Trailer tracking systems with geofencing can help record when equipment enters and leaves designated locations.
This makes it easier to identify extended dwell times and investigate potential detention charges.
According to SkyBitz's asset tracking platform, GPS and geofencing data can support detention monitoring by recording trailer arrivals and departures at customer locations.
3. Improved Trailer Utilization
A trailer sitting unused isn't helping your operation.
When dispatchers have better visibility into equipment locations and movement, they can identify trailers that may be available for upcoming loads.
Instead of relying entirely on spreadsheets or manual yard checks, teams can make better-informed decisions about where equipment is needed.
4. More Visibility for Refrigerated Freight
For fleets hauling temperature-sensitive products, location isn't the only information that matters.
Compatible reefer tracking technology can also monitor temperature conditions and alert teams to potential issues.
ORBCOMM's reefer monitoring technology is one example of how trailer telematics can support cold-chain visibility and temperature monitoring.
Why Tracking Both Trucks and Trailers Is Better
Truck tracking and trailer tracking shouldn't be viewed as competing technologies.
They work best together.
Truck tracking helps dispatchers understand where their drivers and vehicles are. Trailer tracking adds visibility into the equipment being picked up, dropped off, and moved between facilities.
Together, they give transportation teams a more complete picture of their operations.
But there's another piece to consider: where all that tracking information goes.
If your truck data is in one platform, trailer locations are in another, and dispatch is managed somewhere else, your team may still spend a lot of time switching between systems.
That's why connecting tracking technology to your transportation management system (TMS) can make such a difference.
Bringing Trailer Tracking Into Amous TMS
Amous TMS helps transportation companies bring trailer tracking information into the same system they use to manage daily operations.
Through Amous Trailer Tracking Integrations, supported GPS tracking providers can share trailer information directly with the TMS.
This includes features such as:
Last Known Location: View the latest reported trailer position and tracking provider.
Trailer Tracking History: Review recorded movements and location updates.
Geofencing: Monitor when trailers enter or leave designated locations.
Battery Status: See device battery conditions when supported by the provider.
On-Demand Refresh: Request an updated location from the connected tracking provider.
Amous also supports trailer-related dispatch workflows, including drop-and-hook operations, so teams can manage equipment assignments alongside their transportation activity.
Already Using GPS Tracking? You May Not Need to Start Over.
Amous offers 200+ integrations across transportation technology, including trailer tracking, ELDs, load boards, accounting systems, and more.
Rather than forcing every operation into a completely new technology setup, Amous can connect with many of the systems companies already use.
Explore our full integrations library to see what's available.
The Bottom Line
Truck tracking tells you where your trucks are. Trailer tracking tells you where your trailers are.
For carriers managing multiple trailers, drop-and-hook freight, or equipment spread across customer locations, having both can make a meaningful difference.
And when that information connects directly to your TMS, your team can spend less time searching for updates and more time managing freight.
Want to see how trailer tracking works inside Amous?
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