Volvo's environmental activities are based on a holistic view, which means we consider the overall environmental impact of a product throughout its complete life cycle. In this context, design, production, product use, and recycling are all important considerations. In production, Volvo has partly or completely phased out several chemicals including CFCs, lead chromates, asbestos, and cadmium; and reduced the number of chemicals used in our plants 50% since 1991.
Volvo was the first in the world to introduce into production a three-way catalytic converter with a Lambda sond, now called the heated oxygen sensor, in 1976. The current version of this highly efficient system reduces emissions of harmful substances (CO, HC, NOx) from the exhaust pipe by approximately 95 – 99% and the search to eliminate the remaining emissions continues. Volvo is the only automobile manufacturer to offer CFC-free retrofit kits for the air conditioning system of all models as far back as the 1975 model 240. Advanced electronic engine controls and cleaner fuels are bringing us closer to our goal. In addition to continuous environmental refinement of conventional gasoline-powered internal combustion engines, Volvo is actively looking at advanced technology alternative-fuel vehicles.
Driving lane assistance
The Lane Assistance functions are designed to help reduce the risk of accidents in situations where the vehicle unintentionally leaves its lane on highways or other major roads. Driving lane assistance system
Volvo XC90 Lane Keeping Aid (LKA) actively steers the vehicle to help keep it in its traffic lane and/or alerts the driver using an audible signal or through vibrations in the steering wheel. The driving lane assistance system are active at speeds between approx. 40-125 mph (65-200 km/h) on roads with clearly visible traffic lane marker lines. Always observe posted speed limits. On narrow roads, the system may not function and will go into standby mode. It will return to active mode if the road becomes sufficiently wide.
Driver Alert Control (DAC)
DAC is intended to alert the driver if his/her driving becomes erratic due to e.g., distraction or fatigue. DAC is designed to help detect a slowly changing driving pattern. It is primarily intended to be used on main roads and is not meant for use in city traffic. The function activates initially when the vehicle's speed first exceeds 40 mph (65 km/h) and remains active as long the speed remains above approx. 38 mph (60 km/h)
Steep roads and/or heavy loads
Pilot Assist is primarily intended for use on relatively level roads. The function may not be able to maintain the correct time interval to the vehicle ahead on when driving down steep hills. The driver should be attentive and prepared to apply the brakes in these situations. Do not use Pilot Assist when the vehicle is transporting a heavy load or if it is towing a trailer.
Integrated booster cushion
Volvo's optional integrated booster cushion is located in the rear seat's center position and is designed to raise the child higher so that the shoulder strap crosses over the child's collarbone, not over the neck.