General Motors is extending downtime at its Fairfax, CAMI and San Luis Potosi assembly plants due to the ongoing shortage of electronic chips.

"Semiconductor supply remains an issue that is facing the entire industry," the automaker said in a statement

"GM's plan is to leverage every available semiconductor to build and ship our most popular and in-demand products, including full-size trucks and SUVs and Corvettes for our customers. Our supply chain organisation is working closely with our supply base to find solutions for our suppliers' semiconductor requirements and to mitigate impacts on GM.

"Despite our mitigation efforts, GM previously announced downtime on all production shifts at Fairfax (Kansas), CAMI (Canada) and San Luis Potosi (Mexico).

"We are extending downtime at those plants and will reassess in mid-March. Our intent is to make up as much production lost at these plants as possible.

"In addition, when there is a shortage of semiconductors that impacts production, in some cases we intend to build vehicles without certain modules and will complete them as soon as possible. This will help us quickly meet strong customer demand as more semiconductors become available.

"We will work through this situation, and it does not change the strong underlying performance of the company, our growth agenda or our commitment to an all electric future."