Photo of Chevrolet Express courtesy of GM.

Photo of Chevrolet Express courtesy of GM.

General Motors is recalling 40 2016- and 2017-model year Chevrolet Express and 2016-MY GMC Savana cargo and cutaway vans because they were manufactured without an inside rearview mirror but with a right-hand convex exterior review mirror, the National Highway Traffic Safety Administration reported.

Federal safety standards require that these vehicles have either an inside rearview mirror or both left- and right-hand flat exterior rearview mirrors.

The Chevrolet Express vans at issue were manufactured from Sept. 25, 2015, to Aug. 22, 2016. The GMC Savana vans were manufactured from Jan. 28 to May 18 of this year.

“If the driver does not have a clear unobstructed view to the back of the vehicle, it can increase the risk of a crash,” NHTSA said in an online posting of the recall.

Dealers will install a right-hand flat rearview mirror, free of charge, to resolve the issue.

Vehicle owners can reach Chevrolet customer service at (800) 222-1020. GMC customer service is available at (800) 462-8782.

GM’s number for this recall is 16036.