Unlike theft, towing doesn't remove a vehicle from your fleet for good. Perhaps because of that, managing towing in car sharing rarely gets the systematic attention that theft receives. The costs, however, grow with every day a towed vehicle sits in an impound lot. It accrues storage fees while earning nothing.
In this lesson, we'll cover why slow detection makes towing expensive, how to notice a tow whether it happens between rentals or during one, and how to prevent your vehicles from being towed in the first place.
A towed vehicle is recoverable, but recovery only limits the damage if it happens quickly. Impound lots charge storage fees for every day a vehicle sits on their premises, on top of the initial towing charge. The longer detection takes, the higher the final bill.
The second cost doesn't appear on the invoice. A vehicle in an impound lot serves no customers, so every day of slow detection also means lost rentals and a potential gap in your coverage area. If the tow happens during an active rental, a third cost joins the first two: a stranded customer, and possibly a next renter whose booking now has no vehicle.
The financial costs scale with time, which makes early detection the core of towing management.
The data you need already exists. The telematics unit in your vehicles continuously reports position, movement, and shock and motion events. Every detection method in this section builds on that stream.
A vehicle that moves without an active rental looks like theft, and it records shocks while being loaded, which looks like vehicle damage. Without further classification, a single tow can trigger a theft response, a damage case, or both.
Classify by mileage, engine state, and route.
Mileage stays flat because the wheels don't turn, and the engine is usually off. A towed vehicle also travels on a direct route to a towing yard, while a stolen vehicle's route is far less predictable. Some telematics providers, including INVERS, combine these signals automatically to tell the two apart. Getting this right matters, since a tow mistaken for a theft can trigger a needless police dispatch and strain the relationship you need for real thefts.
Geofence known impound lots.
Map the towing company lots in your area and set a geofence around each one. A vehicle entering one of these zones is almost certainly on a truck, so the event becomes your towing alert, routed automatically to operations. This works well for lots inside your operating area, but a vehicle towed during a longer trip can end up outside that mapped network entirely.
Your customers can also park illegally while their rental is active. In this case, they are usually the ones who inform you, because they return to a parking spot and find the car gone.
Telematics gives you a fallback for the cases where the customer doesn't call right away. The same signals apply as between rentals: flat mileage and engine off. But here a booking is still technically open.
Most tows trace back to a vehicle parked where it shouldn't be. Prevention therefore starts with the customer who parks it.
Spell out where rentals may end and which parking rules apply within your operating area. Cover the basics during onboarding and repeat them in the app at the end of a rental, when the information is actually needed. On longer trips, remind customers the rules apply wherever the vehicle stops, not only at drop-off.
Some operators require customers to photograph the parked vehicle before the rental ends. That photo settles later disputes over whether a tow was the customer's fault or yours, and decides who pays the towing and storage costs.
In free-floating services, some zones cause far more tows than others. Semi-public spaces that close in the evening, for example, trap vehicles that were parked legally at noon. Exclude these zones from your permitted parking area with a geofence, so a rental simply can't end there.
Detection and prevention reduce the number of tows. For the ones that still happen, four routines keep the impact small.
The moment a tow is verified, take the vehicle out of your booking system. A customer who books a car that sits in an impound lot has a guaranteed bad experience, and your support team inherits the fallout. Restore availability only after the vehicle is back and checked.
If the tow happened during an active rental, the customer is now stranded, often far from home. Reach out proactively rather than waiting for their call, and help arrange alternative transport for the rest of their trip.
Next, check for a booking that depends on this vehicle. If one exists, tell that customer as early as possible and offer a substitute vehicle instead of leaving them to find out at pickup.
Define who receives the towing alert, who creates the retrieval ticket, and who picks the vehicle up. Retrieval usually competes with other field work, so treat it like a relocation task with a deadline. Storage fees make every day of delay more expensive.
The retrieval ticket is also where cost attribution happens. If the end-of-rental photo shows the customer parked illegally, pass the towing and storage costs on according to your terms and conditions.
Your vehicles are branded, so local towing companies already know they're handling a car sharing fleet. That familiarity is worth building on. Introduce yourself to the operators of the lots in your area and leave a direct contact number.
A short call from the towing company when they pick up one of your vehicles often beats any automated alert. A good relationship can also make the release at the gate easier. Reducing the response time from days to hours is realistic once both sides know each other.
Watch for GPS movement without an active rental, combined with flat mileage and the engine off. Also geofence impound lots. A vehicle entering a towing yard is your most reliable towing alert.
Customers usually report it on their own since they can't find their vehicle anymore. Telematics also helps: the vehicle moves, but mileage stays flat and the engine is off.
A towed vehicle often moves without an active rental and records shocks while being loaded, which matches theft and damage patterns. Configure towing as its own alert category to avoid false alarms.
Yes, if the customer caused the tow. An end-of-rental photo showing illegal parking gives you the evidence, and your terms and conditions define how the costs are passed on.
Educate customers on parking rules during onboarding and at rental end, require an end-of-rental photo, and use geofences to block zones where parked vehicles are frequently towed.