2021 BMW 540i

What can fail

The passenger seat belt retractor may unlock too early before the belt fully retracts, reducing crash protection.

What the fix does

Dealers will inspect and replace the seat belt retractors if needed, at no cost.

What can fail

When shifting into Reverse, the rearview camera display may show a partially obscured image or fail to illuminate, reducing rear visibility.

What the fix does

Dealers will inspect and update the rearview camera software as needed at no cost.

What can fail

The output shafts that transfer engine power to the rear wheels may break due to a heat treatment error during manufacturing.

What the fix does

Dealers will replace the output shaft(s) at no cost to you.

What can fail

The connection between the 48-volt battery and starter-generator may not be properly assembled, causing increased electrical resistance at the connection points.

What the fix does

Dealers will inspect the 48-volt battery and starter-generator connection and replace it if necessary, at no cost.

What can fail

The rearview camera image may be slightly obscured in certain areas, limiting rear visibility and not meeting federal safety standards.

What the fix does

Dealers will inspect the rearview camera and reprogram it with updated software if needed.