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Parking sensors are now fitted to many modern vehicles, and they are incredibly useful when reversing into tight spaces. But if you are thinking about having a towbar fitted, you may be wondering whether the towbar will interfere with your parking sensors.
The simple answer is: it depends on your vehicle, towbar type and wiring setup.
Some vehicles work perfectly well with a towbar fitted. Others may detect the towbar as an obstacle, especially if a fixed towbar remains in place all the time. This is why it is important to choose the right towbar style and the correct wiring option before booking your fitting.
👉 Read our simple towbar guide
Rear parking sensors are designed to detect objects behind your vehicle. When a towbar is fitted, especially a fixed towbar, part of the towbar may sit within the sensor detection area.
If the sensor picks up the towball or towbar neck, it may beep as though there is something behind the car. In some cases, this may only happen occasionally. In others, it can become annoying every time you reverse.
This does not mean you cannot have a towbar fitted to a vehicle with parking sensors. It simply means the towbar needs to be chosen carefully.
A fixed towbar stays permanently attached to the rear of the vehicle. This makes it practical and convenient, especially if you tow regularly. However, because it remains visible and in place all the time, it can sometimes interfere with rear parking sensors.
There are two main fixed towbar types: fixed flange and fixed swan neck.
A fixed flange towbar is the more traditional style. It has a towball bolted to a faceplate, which usually makes it bulkier than a swan neck option. Because of this, it is more likely to be picked up by parking sensors on some vehicles.
A fixed swan neck towbar is usually neater and slimmer. It may be less likely to cause sensor issues than a flange towbar, but because it still remains fixed in place, it can still be detected on some vehicles.
For more detail, visit our main towbar types page or read our guide to fixed vs detachable towbars.
In many cases, yes. A detachable towbar is often the preferred choice for vehicles with rear parking sensors.
The main benefit is that the towbar neck can be removed when you are not towing. This means the visible part of the towbar is not sitting in the parking sensor detection area during everyday driving and reversing.
When you need to tow, you attach the towbar neck. When you have finished towing, you remove it and store it safely.
This makes a detachable towbar a good choice if:
A detachable towbar is usually more expensive than a fixed towbar, but for many modern vehicles it is worth considering.
Retractable towbars are another option on some vehicles. Instead of removing the towbar neck completely, the towbar folds away when not in use.
This gives a very neat finish and can also help avoid parking sensor issues when the towbar is retracted. However, retractable towbars are not available for every vehicle and are usually a more premium option.
If available for your vehicle, a retractable towbar can be a smart choice if you want convenience, appearance and good day-to-day usability.
Yes, wiring can make a difference, especially on modern vehicles.
The towbar itself may physically affect the parking sensors, but the wiring setup can also affect how the vehicle behaves when towing.
With some vehicle-specific wiring kits, the vehicle may recognise when a trailer or caravan is connected. Depending on the vehicle, this can allow towing-related features to activate, including changes to parking sensor behaviour.
For example, some vehicles may automatically disable rear parking sensors when a trailer is connected. Others may adjust dashboard warnings or towing safety systems.
Universal wiring may provide the basic lighting functions, but it may not always communicate with the vehicle in the same way as dedicated wiring. This is why it is worth reading our guide to universal vs dedicated towbar wiring before choosing your setup.
Not all vehicles need coding, but many modern cars do.
Towbar coding tells the vehicle that towing equipment has been fitted. Depending on the make and model, coding may help the vehicle recognise trailer lights, adjust parking sensors, activate towing safety systems, or manage dashboard alerts.
If your vehicle needs coding and it is not carried out, some features may not work as intended. This is another reason why professional towbar fitting is important.
We will cover this topic in more detail in a separate guide: Does My Towbar Need Coding?
As a general rule, a detachable towbar is often the safest choice for vehicles with parking sensors. It gives you towing ability when needed, but keeps the rear of the vehicle clear when not in use.
However, the best option still depends on the vehicle. Some vehicles may be fine with a fixed swan neck towbar. Others may be better suited to detachable or retractable options.
Before choosing, it is worth checking:
Parking sensors do not have to stop you from having a towbar fitted. The key is choosing the right towbar and wiring setup for your vehicle.
First 4 Towbars can help you compare suitable towbar types, choose between fixed and detachable options, and understand the correct wiring setup for your vehicle.
Towbar fitting does not need to be complicated. Once you know your vehicle, what you want to tow and which wiring option you need, choosing the right setup becomes much easier.
For more information, read our full towbar fitting guide, compare available towbar types, visit our towbar wiring types page, or get in touch with the First 4 Towbars team for advice before requesting a quote.
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