Which of the following indicates normal operation for brake warning indicators?

The statement regarding brake warning indicators coming on with the ignition and then turning off after a few seconds accurately reflects their normal operation. When the vehicle's ignition is activated, various warning lights, including the brake warning indicator, typically illuminate as part of a system check. This is an essential step to confirm that the indicator bulbs are functioning properly. If all systems are normal, the brake warning indicator will turn off after a few seconds. This sequence indicates that the brake system is operating correctly and that no issues, such as low brake fluid or a problem with the braking system, are present.

In contrast, other options refer to abnormal situations. Having the indicators remain dimly lit at all times does not signify normal operation and may indicate a persistent alert that needs attention. If the indicators never light up at any point, it could suggest a malfunction in the indicator system itself, meaning the driver would not be aware of any potential brake system issues. Lastly, a blinking indicator generally does not represent standard operation; it may suggest a malfunction or an alert that requires immediate investigation. Thus, the correct answer reinforces an understanding of how warning systems function during normal operation in a vehicle.