How technology is helping drive car recalls

On Tuesday, General Motors' new chief executive appeared before U.S Congress to explain why the automaker took 10 years to recall cars with afaulty GM ignition switch linked to 13 traffic deaths.

But General Motors is not the only car company dealing with big recalls in recent years.CBC'sHavardGould reports that vehicles today are loaded with complicated hi-tech systems to control everything from speed to emissions to air bag deployment, meaning there's more opportunity for things not to work perfectly.

• GM recall linked to 57-cent ignition switch component
• GM ignition switch recall: Canadian lawsuits filed

Cars are becoming more like rolling computers, withestimates of 80 to100million lines of code in a modern vehicle.

With suchcomplex systems,the potential for mistakes is there.

Experts say somecompanies are also trying to minimize the cost of every part that's going into the vehicle which canleadto some shortcuts.

And the auto industry's relatively recent practice of sharing parts between models multiplies problems.

Click on the video above to watch Gould's report.