general motors is recalling 40000 trucks the word ‘recall’ may make auto investors’ hairs stand on end but this one doesn’t sound all that significant recalls for the most part are just a facet of the automotive landscape monday a national highway transportation safety administration or nhtsa notice indicated that general motors ticker gm is recalling about 40000 mediumduty trucks because a brake pressure sensor assembly may leak brake fluid into the brake pressure switch and cause an electrical shortcircuit