General Motors Co. capped the week by issuing three new recalls covering almost 60,575 vehicles in North America — the biggest for an ignition switch issue on some Pontiac G8 and Chevrolet Caprice police patrol vehicles, reported The Wall Street Journal.

The auto maker has now issued six separate recalls over the past three days and stopped shipping or selling its 2015 Chevrolet Colorado and GMC Canyon pickup trucks. The recalls had been submitted to the National Highway Traffic Safety Administration last month but notices didn’t post until Saturday.

A total of 46,873 model year 2008 through 2009 Pontiac G8 and 2011-2013 Chevrolet Caprice police patrol vehicles sedans are included in the first recalls. The ignition switch may slip from the “run” to “accessory” position if the driver’s knee interacts with the ignition key. GM’s Australian unit—known as Holden—discovered the condition during a review of unintended key rotation reports in recalled models in North America.

The Holden unit is developing a replacement fixed-blade key. GM is aware of one crash, no injuries and no fatalities in these vehicles.

The company is also recalling 10,005 model year 2004-2007 Cadillac CTS-V and 2006-2007 Cadillac STS-V sedans in the U.S. On certain vehicles, the fuel pump module electrical terminal may overheat, causing melting of the flange material. GM knows of no crashes, injuries or fatalities related to the condition.

Rounding out the group, 304 model year 2014 Chevrolet Sonics were recalled in the over concern a loose electrical connection in the steering column may affect driver air bag performance. If the condition is present and the air bag lamp is illuminated, it may result in the driver frontal air bag deploying only as a single-stage air bag in crashes of a certain severity. GM isn't aware of any crashes, injuries or fatalities related to this issue.

GM has now issued 74 recalls covering almost 30 million vehicles.