These cars' curtain side airbags may inflate for no apparent reason because of a manufacturing error.

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"Side airbags aren't required yet, and unfortunately, they're less common on SUVs than on cars, " says Rader.

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Hyundai dealers are expected to notify owners and replace the curtain side airbags free of charge, the NHTSA said.

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Those low prices usually don't include tax and license fees -- or may apply to cars with the fewest options, like side airbags.

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Side airbags are another major safety device that's not yet on most vehicles but has been shown to make a significant difference in fatality rates.

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Mr Vogel points to car companies, which may charge extra for features such as anti-lock brakes and passenger-side airbags, instead of offering them as standard features.

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Both models will also apparently come packed with features, include driver and passenger side airbags, interior and exterior LED lighting, a "solar assisted" climate control system, and an "advanced drive computer" that includes GPS, a rear-view camera, and a complete vehicle diagnostic system.

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This recall is to apply adhesive strips to the interior roof liner to prevent it becoming loose during the deployment of side curtain airbags, which could increase the risk of cuts during a crash, the NHTSA said.

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"The better vehicles are going to have side and curtain airbags, and you'll get three-point belts in the third-row seat, " says Shenhar, who added that head restraints with whiplash protection are another feature that separates the safest SUVs from the rest of the pack.

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