Is a TPMS Necessary For Towing?

When towing a trailer, it’s easy for the tyres on there to become an afterthought. Unlike the tyres on your tow vehicle, trailer tyres are often out of sight and receive far less attention during a trip.

This creates a serious risk when a tyre issue develops. A slow puncture, underinflation, overheating or tread separation can go unnoticed for kilometres until the problem escalates. By the time the driver feels instability, sees smoke or notices a problem, the tyre may already be destroyed and there could be damage to the trailer, cargo or surrounding vehicles.

Because trailer tyre problems are harder to detect in real time, monitoring tyre pressure and temperature becomes far more important when towing.

Different Types of Trailers

Caravans

Caravans are one of the most common trailer types used for long-distance travel and recreational towing. Because caravans are often heavily loaded with living essentials, water tanks, batteries and appliances, maintaining correct tyre pressure is critical for both safety and stability. Since caravans frequently travel across varying road and weather conditions, a TPMS provides added peace of mind and can help improve fuel efficiency and tyre lifespan.

Open Car Trailers

Open car trailers are widely used for transporting small vehicles or machinery. Because open car trailers are often used for long-distance towing at highway speeds, a TPMS can provide real-time alerts if a tyre begins losing pressure or overheating. This is especially important when carrying valuable or heavy loads, where tyre failure could lead to damage to the transported items.

Enclosed Trailers

Closed car trailers offer extra protection for cargo during transport but the tyres are still exposed. Additionally, depending on bulkiness, the trailer may also block view of the tyres from the driving vehicle. This makes TPMS more important as it acts as an extra pair of eyes on the tyres.

Tilt Car Trailers

Tilt car trailers are designed to simplify vehicle loading and unloading by tilting the trailer bed rather than using ramps. While convenient, the shifting weight distribution during loading and transport places additional stress on trailer tyres.

Tandem Car Trailers

Tandem car trailers use two axles and typically four tyres to support heavier loads and improve towing stability. Tandem setups offer better weight distribution and redundancy compared to single-axle trailers but may be used to carry heavier goods.

Why TPMS Matters

Immediate Insight Into Tyre Problems

One of the biggest challenges when towing is that you usually can’t see or feel what’s happening with the trailer tyres in the same way you can with the tow vehicle. If a tyre on your car loses pressure, you’ll often notice changes in steering, braking, handling or road noise. Trailer tyres, however, can develop problems silently behind the vehicle without obvious warning signs.

A TPMS provides real-time visibility into tyre pressures and temperatures. Instead of discovering a puncture after debris appears in the mirror, drivers receive immediate alerts that something is wrong before the situation escalates.

Trailers Behave Differently Under Failure

Trailers can become highly unstable when a tyre fails, particularly at highway speeds. Because the trailer pivots behind the tow vehicle, sudden changes in tyre pressure or grip can cause the trailer to sway, pull unpredictably or behave like a pendulum. This instability can place enormous stress on both the trailer and tow vehicle, making the situation difficult to control.

The heavier the trailer, the greater the forces involved. A blowout on a heavily loaded caravan, car trailer, or boat trailer can quickly turn into a dangerous loss-of-control event.

Protecting Valuable Cargo

Many trailers carry expensive and valuable cargo. Caravans contain personal belongings and living equipment, boat trailers transport boats worth tens or hundreds of thousands of dollars and car trailers often carry high-value equipment. A tyre failure doesn’t just risk the trailer itself - it can also cause serious damage to whatever is being towed.