The automaker has signed an agreement with Inova Semiconductors and Globalfoundries, guaranteeing the supply of "several million" chips a year.
The components will provide controls for ambient lighting systems that will first be used in the BMW iX full-electric crossover.
"We are deepening our partnership with suppliers at key points in the supplier network and synchronizing our capacity planning directly with semiconductor manufacturers and developers," Andreas Wendt, a board member responsible for purchasing, said in a statement on Wednesday.
BMW's deal is another sign that automakers are sidestepping traditional partsmakers to instead deal directly with semiconductor manufacturers to secure vital chip supplies.
Stellantis on Tuesday unveiled a nonbinding accord with Foxconn owner Hon Hai Technology Group for the design of four new families of automotive chips.