The 2020 Mercedes-Benz GLC Class has 3 recalls, the most serious involving a transmission wiring harness that can be damaged by contact with the front driveshaft, cutting power to the wheels and raising the risk of a crash.
On the safety equipment side, certain vehicles equipped with electronically unlockable rear seat backrests have a defective lock on the left-rear seat. In a crash, cargo shifting forward from the trunk can load the backrest and force the lock to fail, allowing the backrest to tilt forward into the passenger area. There is also a lighting concern: the headlamps on some vehicles were set incorrectly at the factory, which can reduce what the driver sees ahead at night and cast glare into the eyes of oncoming drivers.
At a glance
What can fail
The headlamps were not adjusted correctly during manufacturing, which may affect their aim and performance.
What the fix does
A Mercedes-Benz dealership will inspect your headlamps and adjust them as needed to ensure proper alignment.
Summarized — see the official notice for exact wording, dates, and contacts.
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At a glance
What can fail
The transmission wiring harness may be routed too close to the front driveshaft, where it can get damaged and lose power connection to the wheels.
What the fix does
Mercedes-Benz will mail you instructions to visit a dealership, where technicians will inspect the wiring harness and replace it if damaged.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The lock securing the left-rear seat backrest may fail during a crash if trunk cargo pushes against it, causing the backrest to tilt forward.
What the fix does
A dealer will replace the left-rear seat backrest lock. Avoid loading heavy items in the trunk until the repair is completed.
Summarized — see the official notice for exact wording, dates, and contacts.
