Daimler Truck has demonstrated its next generation of active safety systems at its Oregon proving grounds, testing automated braking and hazard detection designed to stop heavy commercial lorries from colliding with cars, cyclists and pedestrians ahead of a planned production rollout in January 2027.
Key points
- Daimler Truck North America showcased upgrades to its Detroit Assurance suite, including Active Brake Assist 6 and Cross Traffic Assist.
- The hardware pairs four short-range radars, one long-range radar and a camera to create roughly 270 degrees of sensor coverage around the tractor and trailer.
- Production for North American Freightliner Cascadia models begins in January 2027, following order openings in late 2026.
- European-market Mercedes-Benz and Setra vehicles will receive separate configurations starting in April 2027.
Automated braking at blind intersections
Large commercial vehicles present severe stopping-distance and visibility challenges for drivers. A fully loaded articulated lorry can weigh tens of thousands of kilograms, requiring far greater distance to stop than a passenger car. At the Daimler Truck North America proving grounds in Oregon, the manufacturer ran demonstrations showing how its updated software and sensor suites intervene when cross traffic enters a lorry’s path.
During track trials, dummy vehicles mounted on remote-controlled sleds moved directly across the travel lanes of approaching Freightliner Cascadia lorries. The test vehicles carried loaded trailers weighing approximately 13,608 kilograms (30,000 pounds) while travelling at speeds between 40 and 55 miles per hour (64 to 89 kilometres per hour).
The newly introduced Cross Traffic Assist system watches for moving objects crossing the lane ahead at junctions. When the system detects an impending impact with a crossing car or motorcycle, it issues visual and audible warnings inside the cab. If the driver does not react, the vehicle can trigger partial or full emergency braking autonomously.
In track tests reported by New Atlas, the autonomous intervention either brought the lorry to a complete halt before reaching the dummy vehicle or reduced the collision speed significantly. Daimler engineers noted that while coming to a complete stop is the ideal outcome, reducing the kinetic energy of an unavoidable impact substantially cuts the risk of fatal injuries for car occupants.
Sensor fusion and 270-degree monitoring
The core of the North American technology suite is Detroit Assurance Active Brake Assist 6 (ABA6). The upgraded package departs from single-sensor setups by combining five separate radar units with a forward-facing multipurpose camera.
Four short-range radar units monitor the immediate perimeter of the vehicle, while a central long-range radar scans further down the road. Working in tandem with the camera, the system establishes approximately 270 degrees of continuous electronic monitoring around the cab and along the length of a standard 53-foot (16.15-metre) trailer.
This broader field of view expands the range of roadside hazards the vehicle can interpret. Standard collision mitigation systems often struggle when vehicles ahead are not aligned squarely within a highway lane. Daimler designed ABA6 to identify stationary vehicles resting at odd angles, such as cars involved in previous accidents or vehicles disabled across multiple highway lanes.
The system also tracks stationary hazards positioned around motorway curves, giving the software earlier notice of stopped traffic hidden beyond a bend. Pedestrians and cyclists crossing or standing near the path of the lorry are tracked simultaneously by the vision and radar pipeline.
Turning protection and lane control
Turning manoeuvres represent another major accident category for commercial transport operators, particularly when long vehicles turn across opposing lanes or navigate tight city corners. Daimler is introducing Active Side Guard Assist 2 to address both sides of the vehicle during turns.
The updated turning assistant monitors hazards along the passenger side, where lorry blind spots are largest. It also adds left-turn protection, using sensors to detect oncoming traffic that might collide with the lorry while it makes a signalled turn across opposing traffic lanes. If an approaching vehicle creates an immediate collision risk, the system can apply active braking intervention rather than simply sounding an alarm.
Alongside collision mitigation, the lorries demonstrated Active Lane Assist 2, which provides continuous steering intervention to keep the vehicle centred in its lane. The system counters the effects of strong crosswinds and eases the physical strain on drivers steering heavy vehicles over long shifts.
The lane-keeping technology includes an emergency driver-monitoring feature called Attentive Driver Protection. If sensors detect that the driver has become completely unresponsive at the wheel, the system can bring the lorry to a gradual, controlled stop within its lane, engage the parking brake and switch on the hazard warning lights to alert surrounding motorists.
Regional variations across global markets
Although Daimler Truck sells vehicles globally, the company maintains separate development tracks for North America, Europe and Asia. Commercial vehicle regulations, maximum permitted weights, average road speeds and cab layouts differ significantly across continents.
North American operations will deploy the technology under the Detroit Assurance brand for the fifth-generation Freightliner Cascadia and Western Star X-series lorries. This rollout includes Active Brake Assist 6, Cross Traffic Assist and Active Side Guard Assist 2.
In European markets, Daimler Truck is introducing Active Sideguard Assist 3 alongside updated Active Drive Assist software. These European systems are tailored for cab-over-engine lorries, including the Mercedes-Benz Actros and Arocs, as well as Mercedes-Benz and Setra touring coaches.
The underlying software philosophy remains consistent across both divisions: shifting lorry safety away from passive cab protection toward active mechanical intervention that overrides driver inaction when a crash is mathematically certain.
Timeline for commercial deployment
Daimler Truck North America first announced the fifth-generation Cascadia safety package in April 2026. The company confirmed that order books for the upgraded Cascadia models will open to commercial fleet buyers in the third quarter of 2026.
Factory production of the 2027 Freightliner Cascadia equipped with Cross Traffic Assist and Active Side Guard Assist 2 is scheduled to begin in January 2027. European deployment for Mercedes-Benz commercial lorries and touring coaches will follow in April 2027.
