GM plans to spend as much as $1 billion on upgrades and improvements to its technical center near Detroit.

General Motors continues to plow cash into its facilities as part of a $5.4 billion investment plan announced last month, the maker unveiled plans to spend as much as $1 billion to upgrade and expand its Technical Center in Warren, Michigan.

Construction on the 326-acre campus will begin next month and is expected to be complete in 2018.

“This is an investment in our people who work at the Tech Center because it is positioning the company for long-term growth by enabling new levels of innovation and collaboration into our workplace,” said Mark Reuss, GM executive vice president, Global Product Development and Purchasing and Supply Chain.

“We will transform this campus into a collaborative workplace of choice for our current team and future talent.”

While the automaker didn’t provide a break down of how the money will be spent, in tax abatement documents, GM listed several projects, including: $180 million for the Design Studio and a new parking garage, a $63.7 million for another building; $54 million for parking; $60 million for renovations at Research and Development buildings; a $39 million addition to the Pre-Production Operations building; $20 million renovation/addition to an Advanced Engineering Center lab; and $750,000 in renovation to a cafeteria.

Under current plans, the investment will create approximately 2,600 new GM salaried jobs in core areas like product engineering, IT and design, all areas critical to support future business growth. GM’s Warren Technical Center is currently home to more than 19,000 employees.

The additions are part of a larger investment program, including $139.5 million for body shop and stamping facility upgrades at its Warren Pre-Production Operations announced last month.

(GM celebrates 500 millionth vehicle with $174 million investment. For more, Click Here.)

Last week, GM announced it will invest $5.4 billion over three years to build the next generations of future vehicles in the U.S., including $783.5 million in three facilities in the state of Michigan and the $174 million announced today.

(Click Here for details about GM’s Texas stamping plant.)

Since June 2009, GM has announced U.S. facility investments of approximately $16.8 billion. About $11.4 billion of that has come since the 2011 UAW-GM National Agreement. In total, these investments have created 3,650 new jobs and secured the positions of approximately 20,700 others.

(To see more about GM’s $5.4 billion investment plans, Click Here.)

Globally since 2009, GM has announced facility investments totaling about $36.7 billion. This includes the U.S. facility investments plus $5.75 billion in Mexico, $1.5 billion in Canada and $12.7 billion in other global regions outside GM North America.