Under these conditions, trailerstability assist begins to stabilize thevehicle/trailer combination byreducing the vehicle speed. Thecontrol unit sends signals toselectively apply the brakes andregulate the engine output. Thebrake lights of your vehicle will beturned on automatically by thesystem even if you do not keep thepressure on the brake pedal.Your vehicle is equipped with trailerstability assist function. Thisfunction works on the same sensorsas the vehicle stability assist (VSA)system. This function helps tostabilize the vehicle/trailercombination when the trailerseverely sways or oscillates. Formore information of the VSA system,see page .When the brakes are applied, thetrailer’s brake lights come on alongwith the vehicle brake lights.When the trailer stability assistactivates, you will see the VSAactivation indicator blink. There mayalso be some noise from the VSAhydraulic system.Trailer stability assist cannot preventa loss of control. Always reduce thevehicle speed and steer firmly. Donot brake suddenly or make quicksteering motion. It could cause thetrailer to jackknife or turn over andthe system becomes ineffective.Trailer stability assist cannot preventswaying that can occur in crosswindsand in normal and emergencydriving maneuvers. It helps only tostabilize the vehicle/trailercombination in these conditions,after the oscillation becomes severe.If the function detects the vehicle/trailer instability, it checks if theswaying is caused by the trailer, andif the trailer swaying or oscillation isincreasing.The vehicle/trailer combination ismore affected by crosswinds,buffeting, and improper tongue load.These conditions can make thetrailer unstable, and cause it to sway. Always obey the recommendedspeed limits for towing a trailer, seepage .Trailer stability assist will also beineffective while driving at highspeed or towing a trailer with a highcenter or gravity.351365Trailer Stability Assist Driving367
