Subject to the latest recall are 1,873,000 cars across nine models in Japan. These include the Chevrolet Cruze it builds for General Motors Co, the AZ-Wagon and Carol models sold under Mazda Motor Corp's brand, and Suzuki's Alto, WagonR and Swift models built between 1998 and 2009.
There were 67 reports of smoking ignition switches, Suzuki said in a filing with Japan's transport ministry.
The recall also covers 133,700 Swift, Alto, Chevy Cruze and other models in overseas markets such as Australia and Europe, a Suzuki spokesman said.
No one has been injured from the defect and there have been no reports of smoking or burning ignition switches outside Japan, the spokesman said.
Suzuki declined to disclose the estimated financial impact of the recall.