Shares of Delphi Technologies PLC plummeted 22% in premarket trading Tuesday, after the company said the received notice from fellow auto parts maker BorgWarner Inc. that Delphi’s decision to draw on its credit facility represents a material breach of the buyout agreement. BorgWarner’s stock was still inactive ahead of the open. Delphi said it believed it was “prudent” and in its best interests to draw down on its full $500 million revolver to help weather current market conditions resulting from the COVID-19 pandemic. BorgWarner said drawing on the facility without prior written consent from BorgWarner gives BorgWarner the right to terminate the agreement to acquire Delphi, which was announced in late Janunary. Delphi disputes BorgWarner’s assertion, saying BorgWarner “unreasonably withheld its consent,” and intends to continue to negotiate to resolve the matter. Delphi shares have lost 19.6% over the past three months through Monday while BorgWarner’s stock has tumbled 43.3% and the S&P 500 has dropped 18.7%.