He said surveillance video showed that the brake lights didn't illuminate until after the crash.

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The affected switch in the larger recall may cause the brake lights not to come on when the brake pedal is depressed.

BBC: Hyundai and Kia in US car recalls

Instead, you're more likely to get context clues, like the brake lights.

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The safety agency says the brake lights may not come on when the pedal is pressed, while at other times the lights can illuminate for no reason.

NPR: Feds Could Add A Million GM Midsize Cars To Recall

Failure to illuminate the brake lights or disengage cruise control could increase the risk of a crash, while disabling the brake-transmission interlock could result in the vehicle rolling away, it added.

BBC: Hyundai and Kia in US car recalls

Where the ActiveE will turn the brake lights on as soon as you let go of the accelerator, the Model S relies on accelerometer readings to warn the vehicles behind you -- clever.

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The two cars share many of the same parts with the G6, but GM spokesmen were unsure Tuesday whether all three cars have the same brake lights.

NPR: Feds Could Add A Million GM Midsize Cars To Recall

The spot did not show a Jeep, just its red brake lights and blinker as it burrowed under the deep snow and stopped at a stop sign.

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They also have a website that has in a mere fortnight become a hotbed of bright ideas, such as brake lights that glow brighter the harder you brake.

ECONOMIST: Now that's a good idea