General Motors has reportedly instructed suppliers to stop working on tooling and parts for some of its mid-cycle vehicle updates. The note comes amid the company’s effort to build ventilators to aid in the COVID-19 pandemic and demand for new vehicles plummets as the U.S. economy is put on pause.

According to a memo obtained by The Detroit News, GM has urged suppliers to stop working on items related to a planned mid-cycle update on the Chevrolet Silverado and GMC Sierra pickups. The note also impacts updated versions of the Chevrolet Equinox, GMC Terrain, Chevrolet Traverse, Chevrolet Bolt EV and Chevrolet Camaro. An unnamed, new variant of the Chevrolet Corvette will also be delayed as a result of this memo.

GM ultimately confirmed the memo, saying its global development teams are taking all steps to conserve resources. One way to conserve resources is to delay programs, such as updates.

While many programs appear to be impacted, GM insist some headlining programs are not impacted thus far, including GM’s 2021 full-size SUVs and upcoming battery-electric models, such as the Cadillac Lyriq.

Some automakers are beginning to announce dates for restarting vehicle production, but GM has not offered any dates thus far. The company says it is taking the situation day-to-day.