Electronic Stability Control (ESC)
ESC improves vehicle handling and stability in a variety of driving conditions. ESC corrects oversteer or understeer by applying the brake at the appropriate wheel(s) to counteract the above conditions. Engine power may also be reduced to help the vehicle follow the intended path.
- Oversteer is when the vehicle turns more than the steering wheel position indicates.
- Understeer is when the vehicle turns less than the steering wheel position indicates.
ESC uses sensors in the vehicle to determine the path intended by the driver and compares it to the actual path of the vehicle. When the actual path does not match the intended path, ESC applies the brake at the appropriate wheel to help counteract oversteer or understeer.
The ESC Activation/Malfunction Indicator Light in the instrument cluster will flash as soon as the ESC system becomes active. The ESC Activation/Malfunction Indicator Light also flashes when TCS is active. If the ESC Activation/Malfunction Indicator Light begins to flash during acceleration, release the accelerator pedal and apply as little throttle as possible. Be sure to adapt your speed and driving to the prevailing road conditions.
- Electronic Stability Control (ESC) cannot overcome the laws of physics acting on the vehicle, nor can it increase the traction provided by the prevailing road conditions. ESC cannot prevent accidents, including those resulting from excessive speed in turns, driving on very slippery surfaces, or hydroplaning. ESC also cannot prevent accidents resulting from loss of vehicle control due to inadequate driver input for conditions. Only a safe, attentive, and skillful driver can prevent accidents. The capabilities of a vehicle equipped with ESC must never be exploited through reckless or dangerous driving that could jeopardize the safety of the user or others.
- Modifications to your vehicle or improper maintenance may change the handling characteristics of your vehicle and may adversely affect ESC system performance. Changes to the steering system, suspension, brake system, tire type and size, or wheel size may adversely affect ESC operation. Improperly inflated and unevenly worn tires may also degrade ESC performance. Any vehicle modification or poor vehicle maintenance that reduces the effectiveness of the ESC system may increase the risk of loss of vehicle control, vehicle rollover, personal injury, and death.
Test yourself
A quick Jeep Wrangler quiz: every answer comes with an explanation and a link to the manual page.