The function has several limitations that the driver should be familiar with:
Low objects
Hanging objects, such as flags for overhanging loads or accessories such as auxiliary lights or front protective grids that extend beyond the height of the hood may limit City Safety's function.
Slippery driving conditions
The extended braking distance on slippery roads may reduce City Safety's capacity to help avoid a collision. In situations of this type, the ABS brakes and Electronic Stability Control will help provide braking power and stability.
Backlighting
Strong sunlight, reflections, extreme light contrasts, the use of sunglasses, or if the driver is not looking straight ahead may make the visual warning signal in the windshield difficult to see.
Heat
If the temperature in the passenger compartment is very high due to e.g., strong sunlight, the visual warning signal may be temporarily disabled.
Camera and radar sensor's field of vision
The camera and radar sensor have limited fields of vision. In some situations they may detect a vehicle, large animal, pedestrian or cyclist later than expected or not detect them at all.
Other vehicles that are dirty may be detected later than others and in dark conditions, motorcycles may be detected late or not at all.
If a text message is displayed in the instrument panel indicates that the camera or radar sensor are blocked, it may be difficult for City Safety to detect a vehicle, pedestrian or cyclist and the system's functionality may be reduced.
Warning
Text messages may not be displayed in all situations in which the camera and/or radar sensor are blocked. It is therefore essential to keep the windshield in front the camera/radar sensor clean and free from snow, ice, etc.
Camera and radar sensor components should only be serviced or replaced by a trained and qualified Volvo service technician.
Action by the driver
Backing up
City Safety is temporarily deactivated while the vehicle is backing up.
Low speed
City Safety is not activated at very low speeds (under approx. 3 mph (4 km/h). This means that the system will not be triggered if your vehicle approaches a vehicle ahead at very low speed, such as when parking.
Active driver
Action by the driver always has priority. For this reason, City Safety may not react or react later than expected in situations in which the driver is actively operating the vehicle, even if a collision is imminent. This is also done to help eliminate excessive warnings.
Other limitations
City Safety uses the vehicle's camera and radar sensor, which have certain general limitations. See the articles "Camera limitations" and "Radar sensor limitations" for additional information.
Warning
- Warnings and braking may be delayed or not occur at all if traffic, weather or other conditions prevent the camera and/or radar sensor from detecting pedestrians, cyclists, large animals or other vehicles correctly.
- Other vehicles can only be detected in darkness if their headlights and taillights are clearly visible.
- The sensors have a limited range for pedestrians and cyclists. The system functions best at relative speeds up to 30 mph (50 km/h). For stationary or slow-moving vehicles, the system functions best at speeds up to approx. 43 mph (70 km/h).
- If there is a risk of colliding with a large animal, City Safety can reduce the vehicle's speed by up to 9 mph (15 km/h). Warnings and braking are most effective at speeds above 43 mph (70 km/h) and less effective at lower speeds.
Warning
- Warnings for stationary or slow-moving vehicles and large animals may be impeded by darkness or poor visibility.
- Warnings and braking for pedestrians and cyclists will not be provided at speeds above approx. 43 mph (70 km/h).
- Do not place, attach or mount any objects on the inside or outside of the windshield near or over the sensor. This could affect the camera-based functions.
- Objects, snow, ice or dirt in the camera's field of vision may result in certain functions being reduced or disabled, or they may respond incorrectly.