Michigan CDL - Air Brakes Practice Exam

Where are the ABS malfunction lamps located on trucks and buses?

1. On the side mirrors

2. On the windshield

3. On the instrument panel

4. On the dashboard

The correct answer is: On the instrument panel

The ABS malfunction lamps are typically located on the instrument panel of trucks and buses. This is because the instrument panel is designed to provide the driver with key information about the vehicle's systems and operational status. The ABS light, which alerts the driver to any issues with the anti-lock braking system, is strategically placed within the driver's line of sight for easy visibility while driving. Having the ABS light on the instrument panel ensures that the driver can quickly notice and respond to any malfunctions, which is crucial for maintaining safe vehicle operation. Proper and immediate acknowledgment of an ABS warning can prevent further issues related to braking effectiveness, thereby enhancing safety on the road. Other locations, such as the side mirrors, windshield, or dashboard, are not standard for the placement of ABS indicators, as these areas are not primarily meant for operational alerts that need to be viewed instantly while driving.