# Why Use a Professional Installer for Fleet GPS and Dash Cams?

A professional installer picks the right harness, secures and aims each device, tests it and records the install. Why fleets use one for GPS and dash cams.

Source: https://www.highpointgps.com/resources/why-use-a-professional-installer-fleet-gps-dash-cams
By Stefano Mazzone, IT Technical Support Specialist, published 2026-10-14, updated 2026-10-14

## Why Use a Professional Installer for Fleet GPS and Dash Cams?

A professional installer fits each GPS tracker and dash cam on the right harness, secures it where it will stay put, tests it on the platform and records the install vehicle by vehicle, so the data and the footage can be trusted from the first day. For a Geotab installation, Geotab's own documents go further: its GO10 harness guides say professional installation by a Geotab Authorized Installer is required, and the GO Focus Plus guide asks for a Certified Geotab Installer or equivalent.

A fleet can still do the work itself, and some do. High Point GPS always recommends a professional installer, because the problems a hurried install creates, such as a loose connector, a blocked port or a camera pointed at the sky, tend to show up later, on the day you need the record.

## What Does a Professional Installer Do on Each Vehicle?

Fleet GPS installation comes down to five jobs, repeated on every vehicle. The installer chooses the harness, places and secures the device, aims and calibrates any camera, tests that everything reports, and writes down what went where.

| Job | What the installer does | What it prevents |
| --- | --- | --- |
| Harness choice | Matches the vehicle's port to the right kit: an OBD-II or 9-pin T-harness, or a 3-wire kit where there is no port | A device that does not fit, or engine data that never arrives |
| Placement | Fastens the device and cables with cable ties, clear of the pedals and controls | Connectors that work loose and cables near the gas or brake pedal |
| Camera aim and calibration | Mounts the camera and frames the road and cab views in the camera app before the adhesive goes on | Footage that misses the road, the lane or the driver |
| Testing | Confirms the device reports to the platform and the camera completes its setup | Vehicles that look installed but send nothing |
| Documentation | Records the unit, the device serial, the harness and the mounting position for each vehicle | Guesswork when a device has to be found, moved or replaced |

## How Does an Installer Choose the Right Harness?

The installer starts with the vehicle's diagnostic port. Geotab says a harness is required to install its current GO devices, and it lists separate GO10 kits: a 16-pin light-duty OBD-II T-harness (HRN-XGS16K2-LD), a 16-pin heavy-duty OBD-II T-harness (HRN-XGS16K2-HD), a 9-pin Deutsch T-harness for most medium and heavy-duty vehicles (HRN-XGS09K2), and a 3-wire kit (HRN-XCW03K3) for vehicles where a T-harness does not suit.

A T-harness connects at the OBD-II or 9-pin port with no wires cut, and Geotab notes that the harness keeps the diagnostic port accessible for maintenance, so a mechanic can still plug in a scan tool. The 3-wire kit is a hardwired job on the vehicle's electrical system. On a mixed fleet the kit changes from one vehicle to the next, and our guide to OBD and hardwired GPS trackers explains when each one fits.

## Where Should the Tracker and Camera Be Mounted?

The tracker and its cables have to be fastened down and kept away from the controls. Geotab's harness and camera guides say all in-vehicle devices and cabling must be securely fastened and kept clear of the gas, brake and clutch pedals, and they call for a cable tie on both sides of the harness at the OBD connector. Without one, vibration can loosen the connection, which Geotab warns could indirectly cause the engine computer to fail.

A camera has its own placement rules. Geotab's GO Focus Plus guide says the camera must not affect the driver's view of the road, the mirrors or the controls. Its cable runs behind the A-pillar trim and into the door weatherstrip, clear of the roof airbag zone, and never under the headliner in a vehicle with roof-mounted airbags. When the installer is not sure whether a vehicle has roof airbags, Geotab says to check the owner's manual first.

## How Is a Dash Cam Aimed and Calibrated?

A dash cam is aimed with its setup app, before it is stuck to the glass. For the GO Focus Plus, Geotab says the Geotab Video app is required to adjust the mounting and the road and cabin cameras, and it warns that a camera not mounted in the best spot and configured properly will have performance issues. The adhesive strip stays on until the app says to remove it.

Before the final position is set, the installer lowers the sun visor fully to make sure it does not block the lens and checks that the rear-view mirror does not hide the driver's face from the cabin camera. Then the locking screws and the I/O cover are tightened. A camera that skips these steps still records, but the clip may show the sun visor instead of the intersection, and our guide to dash cam installation mistakes lists the checks to run after the fact.

## How Does an Installer Test and Document Each Install?

Testing means confirming each device reports before the vehicle leaves. A tracker should show up on the platform with its location, trips and engine data, and a GO Focus Plus produces an installation report in the Geotab Video app once setup is complete. Geotab also says that if a warning light comes on, the vehicle stalls or performance drops after a device is installed, the driver should shut off the engine, remove the device and call the reseller.

Documentation is the part fleets notice months later. A good install record lists, for each vehicle, the unit number and VIN, the device serial number, the harness kit, where the tracker and camera are mounted and the test result. When a device needs attention or a truck is sold, that record tells the next technician where to look.

## What Can Go Wrong When a Fleet Installs Its Own GPS Trackers?

Four problems are worth knowing about before a self-install. Loose connectors are the first: a harness without cable ties can work loose with vibration, and a tracker that loses its connection can stop reporting. Blocked ports are the second: a device fitted without a T-harness, or a port already taken by another dongle, leaves the mechanic without a place to plug in. Cameras aimed wrong are the third: a lens framed in a hurry records the hood, the sky or the visor.

Warranty questions are the fourth. Geotab's GO10 documentation says configuration, servicing and repairs must only be made by an authorized reseller or installer, and that unauthorized servicing will void the product warranty. It also says not to remove a device from the vehicle it was installed in to put it in another one, because not all vehicles share compatibility. Ask your provider how a self-install affects your warranty before you start.

## Can a Fleet Install GPS Trackers Itself?

Yes, a fleet can install its own GPS trackers, and High Point GPS still recommends a professional installer every time. A fleet doing it in house needs the right harness kit for each vehicle, Geotab's installation document for that kit, cable ties, a phone with the camera app for any dash cam, and a way to confirm each device reports before the vehicle goes back out.

Keep in mind that Geotab's own harness documents call for professional installation by an authorized installer. A fleet that installs its own devices should read those documents first and agree with its provider on who handles a vehicle that throws a warning light or a device that never reports.

## How Does High Point GPS Handle Installation?

Installation is a core part of the High Point GPS service, done by professional installers across North America, including Montreal. Our team plans the work with you from your vehicle list, ships each tracker with the harness that fits the vehicle, assigns each device to its vehicle in the platform and checks that it reports before the vehicle goes back on the road.

Our installers mount, aim and test dash cams as well as trackers, and when a truck joins the fleet or is retired, the same team moves or removes the device. For fleets in and around the city, our page on GPS fleet tracking in Montreal covers local installation, support in French and English and the city's truck and idling rules.

## FAQ

### Do I need a professional installer for a fleet GPS tracker?

You are not forced to use one, but we always recommend it. Geotab's harness documents for the GO10 say professional installation by an authorized installer is required. A professional picks the right harness, fastens the device and cables clear of the pedals, confirms the tracker reports to the platform and records what was installed in each vehicle.

### Can I install a Geotab GO10 myself?

A fleet can, though we always recommend a professional installer. The GO10 needs a harness: a T-harness at the OBD-II or 9-pin port with no wires cut, or a 3-wire kit where there is no usable port. Geotab's harness guides call for an authorized installer and for cable ties on both sides of the harness at the connector.

### Does installing a GPS tracker myself void the warranty?

It can raise warranty questions. Geotab's GO10 documentation says configuration, servicing and repairs must only be made by an authorized reseller or installer, and that unauthorized servicing will void the product warranty. Before a self-install, ask your provider in writing how it affects your coverage, and keep a record of each device, harness and vehicle.

### What should a dash cam installer check before leaving?

The installer should confirm the camera does not block the driver's view, frame the road and cabin views in the camera app, check that the sun visor and rear-view mirror do not block the lenses, route the cable clear of roof airbags, tighten the locking screws and confirm the setup completed. For the GO Focus Plus, the app keeps an installation report.

### What is a T-harness on a fleet GPS tracker?

A T-harness is the cable kit that connects a tracker such as the GO10 to the vehicle's OBD-II or 9-pin diagnostic port without cutting any wires. It shares the port instead of taking it over, so the diagnostic port stays accessible for maintenance. Geotab sells separate T-harness kits for light-duty and heavy-duty vehicles.

### Who installs fleet GPS trackers and dash cams in Montreal?

High Point GPS does, through professional installers in Montreal and across North America. Our Montreal team plans the installation from your vehicle list, assigns each device to its vehicle in the platform and checks that it reports. Support for drivers and managers is available in French and English, from the same team that set up the account.

## Sources

- [Geotab: GO10 device documentation (Support Center)](https://support.geotab.com/go-devices/go10/doc/go10)
- [Geotab: HRN-XGS16K2-LD light-duty OBD-II T-harness installation](https://support.geotab.com/harnesses/installation/doc/HRN-XGS16K2-LD)
- [Geotab: HRN-XGS16K2-HD heavy-duty OBD-II T-harness installation](https://support.geotab.com/harnesses/installation/doc/HRN-XGS16K2-HD)
- [Geotab: HRN-XGS09K2 9-pin T-harness installation](https://support.geotab.com/harnesses/installation/doc/HRN-XGS09K2)
- [Geotab: HRN-XCW03K3 3-wire harness kit installation](https://support.geotab.com/harnesses/installation/doc/HRN-XCW03K3)
- [Geotab: GO Focus Plus quick start guide](https://support.geotab.com/go-devices/doc/qsg-go-focus-plus)
- [Geotab: next-generation GO devices overview](https://www.geotab.com/vehicle-tracking-device/)