2012 Acura MDX Owner's Manual - Page 506

Trailer Stability Assist Under these conditions, trailer stability assist begins to stabilize the vehicle/trailer combination by reducing the vehicle speed. The control unit sends signals to selectively apply the brakes and regulate the engine output. The brake lights of your vehicle will be turned on automatically by the system even if you do not keep the pressure on the brake pedal. When the brakes are applied, the trailer's brake lights come on along with the vehicle brake lights. When the trailer stability assist activates, you will see the VSA system indicator blink. There may also be some noise from the VSA hydraulic system. Trailer stability assist cannot prevent a loss of control. Always reduce the vehicle speed and steer firmly. Do not brake suddenly or make quick steering motion. It could cause the trailer to jackknife or turn over and the system becomes ineffective. Trailer stability assist cannot prevent swaying that can occur in crosswinds and in normal and emergency driving maneuvers. It helps only to stabilize the vehicle/trailer combination in these conditions, after the oscillation becomes severe. Trailer stability assist will also be ineffective while driving at high speed or towing a trailer with a high center of gravity. Always obey the recommended speed limits for towing a trailer, see page 497. Trailer Stability Assist Failure Driving The control unit monitors the VSA circuitry and the braking system. If there is a problem with the brake lighting system, the trailer stability assist function shuts down and the ''CHECK TRAILER STABILITY ASSIST'' message appears on the multi-information display. If you see this message, have your vehicle checked at your dealer as soon as possible. CONTINUED 499