The action came two weeks after more than 130 fires were first reported, via a Facebook group.
The fires have occurred behind the glove-box, in the heating and ventilation system.
The model affected is the Zafira B, built between 2005 and 2014. The cars are all right-hand drive, and have manual, or no air conditioning.
The company said faulty repairs to the heating and ventilation system were probably to blame.
In a statement from chairman and managing director Rory Harvey, Vauxhall said its initial investigations had shown "improper repair of the blower motor resistor and its thermal fuse".
Among those whose Zafiras have burst into flames is Lisa Taperek, from Wiltshire.
She was outside her mother's house in Wooton Bassett on Tuesday this week when she noticed smoke coming from the engine of her Vauxhall Zafira.
Within 30 seconds of getting 10-month-old son Kinsley to safety the car became engulfed in flames, she said.
"When I play it back in my mind and think 'if I had run into a shop, or left him in the car', it makes me quite sick.
I am very lucky - he's very lucky," she said.
A Facebook group set up by Zafira owners to alert other drivers has attracted more than 12,000 members.
Vauxhall will now send out letters to 220,000 owners, advising them to get in touch with their local dealer.
They will be offered a free inspection and repairs
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wire is quite thick
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