Skip to content
Seat beltsPart report

2017 Mercedes-Benz GLC 300 Seat belts Problems

Complaints
8about this part
Share
8%of 101 total for the year
Median mileage
71,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 8 complaints about the seat belts of the 2017 Mercedes-Benz GLC 300, 8% of the 101 complaints for this model year. Where a mileage was given, the median is 71,000 miles. 3 recall campaigns on record are filed under a similar system.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“When the vehicle is in motion, or still, the driver's side cover for the seatbelt/airbag will not stay attached. This is located on the driver's seat and is visible when entering and exiting the car. I am not really concerned about the cosmetic issue as much as the safety issue. With the side impact airbags, this is a safety hazard. If the bag deploys who knows what will happen to the floating part? Will the airbag, or seatbelt even deploy, or work as it should? This is also a safety issue because you can be injured by the hard plastic that is hanging there. …”

NHTSA complaint #11151641, filed 2018-11, 12 miles

“No incident my vehicle has a front left malfunction service required light and issues with the passenger seatbelt not proper latching. Upon checking I notice my car had previous recalls done. It seems as if the same issues has come about. NHTSA: 18v177- seat belt not retracting properly. NHTSA: 17V627 is related to the steering column switch replacement of clock spring. So if me or a family member was to get into an accident no airbag will deploy! Huge safety hazard!”

NHTSA complaint #11664823, filed 2025-06

“The seat belt latch in the second seating row, the outboard seatbelt latch plate retracted into the area between the c-pillar paneling and the rear side paneling. The rear occupant was not be able to fasten the seat belt latch. The latch plate retracted behind the panel and the seat belt for the affected rear seat was not be available for fastening. I was able to grab the latch plate with a pliers and bring it out from behind the panel but I am afraid this situation will occur again. I checked my VIN against you checker and it says NO RECALL is pending. …”

NHTSA complaint #11557169, filed 2023-11

“Whilh e driving with a passanger in the front seat, and properly buckeled up. The passenger seat belt will randomly tighten up and the seat belt light will flash on the dashboard and the seat belt audible bell will sound, this will last for a few minutes and then stop for a few minutes then start again. …”

NHTSA complaint #11470712, filed 2022-06

“The contact owns a 2017 Mercedes-Benz GLC300. The contact stated that while parked and attempting to release the seat belt, the seat belt remained latched. The contact stated that after the third attempt, the seat belt operated as needed. The failure had occurred in the front driver’s and passenger’s side seat belts. The vehicle was taken to a dealer, where it was determined that the buckle and needed to be replaced. The seat belt buckle was replaced, and the vehicle was repaired. The manufacturer was notified of the failure but offered no assistance because the warranty had expired. …”

NHTSA complaint #11715340, filed 2026-02, 71,000 miles

Related recalls

Seat belts: other model years

YearComplaintsShare of year
202415%
201912%
201889%
201788%
201654%

Other parts of the 2017 Mercedes-Benz GLC 300

Engine
37 complaints
Fuel system
16 complaints
Electrical system
15 complaints
Other or unknown
13 complaints
Air bags
11 complaints
Visibility (wipers, defrost, mirrors)
8 complaints
Transmission and drivetrain
7 complaints
Brakes
4 complaints
Forward collision avoidance
4 complaints
Steering
4 complaints
Tires
3 complaints
Seats
2 complaints

← All problems reported for the 2017 Mercedes-Benz GLC 300

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology