Tyre Pressure Monitoring Systems (TPMS) have been mandatory on new trailer types across the EU since July 2022, and on all newly registered trailers from July 2024, as part of the latest safety regulations. In the UK, while not yet universally required, TPMS is rapidly growing in popularity as operators recognise its value in preventing tyre-related incidents, reducing downtime, and improving overall fleet performance.
Fruehauf trailers have implemented TPMS on their trailers as standard, which is a step forward in maintaining safety on the roads across the UK and Ireland. But how will this affect operators?
How the System Works:
A Tyre Pressure Monitoring System (TPMS) works by using sensors fitted to each wheel to continuously measure tyre pressure and, in many cases, temperature. These sensors transmit real-time data wirelessly to a receiver on the trailer or tractor unit, which then displays the information to the driver via an in-cab screen or telematics system. If a tyre drops below a safe pressure level or begins to overheat, the system immediately triggers a warning, allowing the driver. Here are how key elements work on your trailer:
- TPMS Sensors
The TPMS operates using direct sensors installed within each of the trailer’s tyres. These sensors accurately monitor the internal air pressure and, in some cases, the temperature. Positioned either on the valve stem or inside the tyre cavity, they are powered by compact, long-life batteries to ensure consistent and reliable performance. - Data Transmission
The sensors send tyre pressure data wirelessly to a receiver mounted on the trailer chassis, which links into the braking system and communicates with the truck’s onboard computer. This data is continuously analysed, and if any tyre moves outside the recommended pressure range, the system provides an immediate alert. - Dashboard Alerts
If a tyre’s pressure moves beyond the set 20% threshold (for example, on a 385/65R22.5 tyre, around 1.8 bar or 26 psi), the TPMS will trigger a warning on the truck’s dashboard. This may appear as a simple warning light or a more detailed alert identifying the specific tyre and its current pressure. Where supported, some systems can also display temperature data. However, older vehicles that do not support TPMS communication via the CAN bus may not display these warnings. - Trailer Integration
The trailer’s TPMS links with the truck’s onboard system, allowing tyre data from both the trailer and the unit to be combined into one clear, complete overview of tyre conditions. - Preventive Maintenance
By offering constant monitoring, a TPMS helps you spot issues like underinflation, overinflation, or gradual leaks early, before they turn into major problems. This preventative approach reduces the risk of tyre blowouts, enhances fuel efficiency, and prolongs tyre lifespan, resulting in safer driving and lower overall costs. - Battery Life and Maintenance
TPMS sensors are powered by batteries that usually last between 5 and 10 years. Once the battery is depleted, the sensor will need replacing. As part of routine maintenance, it’s important to check that all TPMS sensors are working properly and replace any that are no longer functioning.
The Benefits for Operators:
TPMS offers a range of benefits that help improve vehicle safety by continuously monitoring tyre pressure and alerting drivers to potential issues early. This helps maintain better control, stability, and braking performance, while also supporting fuel efficiency and reducing tyre wear.
- Early Fault Detection – Helps identify issues such as underinflation, overinflation, or slow leaks before they become serious problems.
- Reduced Risk of Tyre Blowouts – Maintains correct pressure to prevent excessive heat and stress that can lead to sudden tyre failure.
- Improved Vehicle Stability – Ensures tyres perform as intended, supporting better control and balance while driving.
- Enhanced Braking Performance – Properly inflated tyres improve grip on the road, leading to more effective braking.
- Real-Time Driver Alerts – Provides immediate warnings so drivers can act quickly when pressure issues arise.
- Consistent Tyre Pressure Monitoring – Continuously tracks tyre condition to help maintain optimal performance at all times.
- Safer Heavy and Long-Distance Operation – Reduces the strain on tyres during demanding journeys, supporting safer transport.
- Lower Risk of Tyre-Related Accidents – Minimises the chances of incidents caused by tyre failure or poor tyre maintenance.
Over time, the initial cost of installing and maintaining TPMS can be balanced by savings in fuel, reduced tyre wear, and less vehicle downtime. In addition, the ability to help prevent accidents and avoid the associated repair and disruption costs makes TPMS a worthwhile long-term investment.
WHAT SHOULD THE DRIVER DO WHEN ALERTED BY THE TPMS?
When a warning appears, a driver will either be faced with one of these two scenarios: there is a pressure loss within the tyre, or the wheel is overheating. The driver needs to pull up where it is safe to do so and check the tyres, brakes, and rims. They should look for any visible damage on the wheel, if there is or if the driver is feeling uneasy, they need to call for help to ensure everyone’s safety on the roads.
- What do I do if the warning light stays on after changing or refilling a tyre?
Switch the ignition off for around five seconds, then restart the system and try resetting it again. Allow a few minutes for the sensors to update and reflect their status. If the warning light remains, inspect the tyres, brakes, and rims carefully. If any damage is visible or there is any uncertainty, the tyre should be replaced, or professional assistance should be sought.
TPMS Overview:
In conclusion, as regulations continue to focus on improving vehicle safety and efficiency, and as technology evolves, TPMS is set to become even more advanced and widely adopted. Future developments are likely to bring more precise monitoring, real-time data insights, and greater integration with emerging vehicle technologies, alongside improved sensor durability, and reduced maintenance requirements.
TPMS already plays a vital role in enhancing tyre safety, efficiency, and lifespan, helping fleet operators and truck owners make more informed maintenance decisions. With these ongoing advancements, it will continue to be an essential component in supporting safer and more efficient transport operations.
Fruehauf already offers this technology, and if your vehicle is compatible (your dealer can confirm), we can retrofit a suitable TPMS system. Please get in touch with our team for more information.
For more information you can contact our team direct:
