Brake Assist System (BAS) and Anti-Slip Regulation (ASR) Fault Indicator

Brake Assist

The picture symbol, and the acronyms in the text fault symbol shown next to it, both mean Brake Assist System (BAS) and Electronic Anti-Slip Regulation (ASR), which is a Stability and Traction Control system. Any problem with the Brake Assist System shuts down the ASR, since ASR requires that all brake functions are operating properly for its own proper operation. The picture is of a tire with a double-ended arrow in it meant to suggest the tire and the vehicle it is attached to rolling or moving.

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The Brake Assist system helps in emergency braking situations when the driver can’t push the brake pedal hard enough. A sensor recognizes the attempt at full braking and transmits the signal calling for full brake pressure from the hydraulic booster reducing the stopping distance.

Remember that these advanced systems come into play in extreme driving conditions, such as rounding a curve excessively fast. The brakes will continue to operate normally with the enhancements shut down. So, your vehicle is safe to drive under most normal conditions. Contact your dealer or authorized repair facility for repairs as soon as possible.

Related Symbol

Note that BAS/ASR are essentially the same as ESP/BAS, but be aware of the acronyms. You can learn more about ESP/BAS here.

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Remember that only proper service and repair procedures will ensure the safe and reliable operation of your car. In addition, proper safety procedures and precautions, such as the  use of safety goggles, the right tools and the equipment should be followed at all times to eliminate the possibility of personal injury or improper service which could damage the vehicle or compromise its safety.

These posts are for information sharing purposes only, and should not be used in lieu of an OEM service manual or factory authorized service procedure. We are not in the auto repair business nor do we publish automotive service manuals. Nothing we include on these pages and posts has been reviewed, approved or authorized by any vehicle manufacturer.

Technology is always changing and what is current and accurate today may be literally out-of-date and inaccurate tomorrow. And when it comes to the current state of flux in the auto industry, nothing is more true.