2006 Subaru B9 Tribeca Owner's Manual - Page 234

7-20 Starting and operating Activation of the Vehicle Dynamics Control system is an indication that the road being travelled on has a slippery surface; since having Vehicle Dynamics Control is no guarantee that full vehicle control will be maintained at all times and under all conditions, its activation should be seen as a sign that the speed of the vehicle should be reduced considerably. Whenever suspension components, steering components, or an axle are removed from a vehicle equipped with Vehicle Dynamics Control, have an authorized SUBARU dealer perform an inspection of that system. The following precautions should be observed in order to ensure that the Vehicle Dynamics Control system is operating properly: - All four wheels should be fitted with tires of the same size, type, and brand. Furthermore, the amount of wear should be the same for all four tires. - Keep the tire pressure at the proper level as shown on the vehicle placard attached to the driver's side door pillar. In the event of wheelspin and/or skidding on a slippery road surface and/or during cornering and/or an evasive maneuver, the Vehicle Dynamics Control system adjusts the engine's output and the wheels' respective braking forces to help maintain traction and directional control. Traction Control Function The traction control function is designed to prevent spinning of the driving wheels on slippery road surfaces, thereby helping to maintain traction and directional control. Activation of this function is shown by steady illumination of the Vehicle Dynamics Control operation indicator light. Skid Suppression Function The skid suppression function is designed to help maintain directional stability by suppressing the wheels' tendency to slide sideways during steering operations. Activation of this function is shown by flashing of the Vehicle Dynamics Control operation indicator light. may be felt when the Vehicle Dynamics Control system operates; a small degree of vehicle or steering wheel shaking may also be noticed in this situation. These are normal characteristics of Vehicle Dynamics Control operation and are no cause for alarm. When driving off immediately after starting the engine, a short-lived operation noise may be noticed coming from the engine compartment. This noise is generated as a result of a check being performed on the Vehicle Dynamics Control system and is normal. Depending on the timing of activation of the brakes, certain situations may occur just after driving off where the brake pedal seems to exhibit a jolting motion. This too is a consequence of the Vehicle Dynamics Control operational check and is normal. In the circumstances listed in the following, the vehicle may be more unstable than it feels to the driver. The Vehicle Dynamics Control System may therefore operate. Such operation does not indicate a system fault. on gravel-covered or rutted roads on unfinished roads when the vehicle is towing a trailer when the vehicle is fitted with NOTE Slight twitching of the brake pedal