NHTSA recall 21V728000

What's wrong: If one or both turn signal lights fail, the flashing rate may not change to warn the driver of the failure. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "lamps, reflective devices, and associated equipment."

Why it matters: The driver may be unaware that the turn signals are not signaling their intentions to other drivers, which can increase the risk of a crash.

The fix: Dealers will update the body controller module (bcm) software, free of charge. Owner notification letters were mailed October 28, 2021.