Kia Sorento: Vehicle Stability Management (VSM) system. Trailer Stability Assist (TSA) system

Vehicle Stability Management (VSM) system

The Vehicle Stability Management (VSM) system works in harmony with the Electronic Stability Control and Motor-Driven Power Steering to further enhance your Kia Sorento's directional stability and precise steering response during demanding maneuvers:

• When navigating through slippery rain, snow, or ice-covered road surfaces.

• When the vehicle sensors detect an asymmetric change in the coefficient of friction between the left and right tires.

WARNING

VSM operation

When the VSM system is actively functioning to correct vehicle dynamics, you might notice a subtle pulsation through the chassis or slight adjustments in steering resistance (MDPS). This normal feedback confirms the system is working.

• You are driving along a heavily banked road profile, such as a sharp highway transition gradient or steep incline.

• You have shifted the transmission into reverse and are driving backward.

• The ESC OFF indicator light ( ) remains illuminated on the instrument cluster display.

• The Motor-Driven Power Steering (MDPS) warning indicator remains lit on the instrument cluster.

VSM operation OFF

If you press the console ESC OFF button to deactivate the stability control system, the VSM system automatically turns off alongside it, and the ESC OFF indicator light () illuminates.

To restore normal VSM operation, press the ESC OFF button again, which will extinguish the warning indicator light on your dashboard.

WARNING

Malfunction indicator

The VSM system may occasionally deactivate independently even if you have not manually pressed the console ESC OFF button. This occurrence points to a detected diagnostic fault within the power steering or stability control architecture. If the ESC indicator light ( ) or the MDPS warning light stays lit, have your vehicle inspected promptly by an authorized Kia service specialist.

Vehicle Stability Management serves strictly as a supplementary safety feature rather than a replacement for attentive driving habits. It is always your duty to monitor vehicle speed and maintain a safe following distance from traffic ahead, keeping both hands firmly on the steering wheel.

Your Kia Sorento is engineered to respond predictably to driver steering inputs even when stability systems are active, but you must always adjust your speed to match challenging weather conditions or slick road surfaces.

WARNING

Trailer Stability Assist (TSA) system

The Trailer Stability Assist (TSA) system functions as a specialized extension of vehicle dynamics control, designed specifically to stabilize your Kia Sorento and attached towed unit whenever trailer oscillations or swaying begin to develop.

Trailer swaying most frequently occurs at higher highway velocities, but can also be triggered unexpectedly by sudden crosswinds, aerodynamic buffeting from large passing trucks, or incorrect cargo weight distribution.

The following factors can cause swaying:

• Excessive driving speed while towing

• Severe crosswinds or sudden gusts

• Improper cargo overloading or tongue weight imbalance

• Abrupt steering adjustments or sudden overcorrection maneuvers

• Rough, uneven road surfaces or potholes

TSA constantly monitors vehicle sensors for signs of oscillatory instability. When the system detects dangerous trailer sway, it automatically applies targeted braking forces and throttles engine output to regain full control, returning your Kia Sorento and trailer to a stable straight-line trajectory.

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