Recalls apply to specific production ranges. To see whether a particular car still has an open recall, enter its VIN at nhtsa.gov/recalls. Repairs for safety recalls are free at authorised dealers.
2017 Mercedes-Benz GLC300 recalls
Structure: body, roof and pillars
NHTSA campaign 23V854000 · reported December 15, 2023 · Mercedes-Benz USA, LLC · 2,976 vehicles potentially affected
- The problem
- Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2014-2020 C-Class, CLA, GLA, S-Class, GLC, and GLE vehicles. Please refer to MBUSA's recall report for specific vehicle details. The front roof panel located between the windshield and the panoramic sunroof may not have been bonded correctly to the vehicle during a prior repair, allowing the front panel to detach from the vehicle.
- The risk
- A detached roof panel can become a road hazard, increasing the risk of a crash.
- The fix
- Dealers will replace the front panel, free of charge. Owner notification letters were mailed on August 2, 2024. Owner notification letters will be mailed in phases, on, March 22,2024, and August 2, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. This recall is an expansion of NHTSA recall number 21V-197.
Structure: body, roof and pillars
NHTSA campaign 21V197000 · reported March 19, 2021 · Mercedes-Benz USA, LLC · 15,096 vehicles potentially affected
- The problem
- Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2020 C300 Coupe, C43 Coupe AMG, C43 AMG, 2015-2020 C300, GLA250, 2016-2018 C350e, CLA45 Coupe AMG, 2015 C400, S65 AMG, 2015-2019 C63 AMG, 2016 C450, 2015-2016 GLA45 AMG, S600, 2016-2020 GLC300, 2017-2019 GLC43 AMG, GLE43 Coupe AMG, 2014-2019 CLA250 Coupe, 2014-2015 CLA45 AMG, 2018 GLC63 AMG, 2014-2017 S550, 2018-2020 S450, 2016-2019 GLE63 Coupe AMG, 2016 GLE450 Coupe, 2014-2020 S63 AMG, 2018-2019 S560, and 2019 GLC350e vehicles equipped with a panoramic sunroof. The front roof panel located between the windshield and the panoramic sunroof may not have been bonded correctly to the vehicle during a prior repair.
- The risk
- The adhesive bonding of the front panel might deteriorate, possibly causing the front panel to detach from the vehicle and become a road hazard, increasing the risk of a crash.
- The fix
- Mercedes-Benz dealer will remove the bonded panel and will install a new front panel by following the detailed repair instructions and using the approved primer, cleaner and adhesive, free of charge. Owner notification letters were mailed on September 3, 2021 and October 26, 2021. Owners may contact MBUSA customer service at 1-800-367-6372.
Communication: auto crash notification · Communication
NHTSA campaign 21V072000 · reported February 12, 2021 · Mercedes-Benz USA, LLC · 67 vehicles potentially affected
- The problem
- Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2019 C300, E300, 2018-2020 CLA250, 2020 CLS450, AMG E53, AMG GT53, GLE450, 2018 AMG E63, AMG GTA, 2017-2020 GLA250, GLC300, 2019 GLC350, AMG GLC43, 2017-2018 GLE350, 2019 AMG GLC 43, GLC350, GLE400, 2017 GLS450, S550, C300 Cabrio, and 2018-2019 S560 vehicles. On June 18, 2021, an additional 9 vehicles were added, including certain 2021 GLA250, GLC300, 2018 S450, E400, and 2017 CLA250 vehicles. The communication module might have been inadvertently deactivated during a service visit, which could have disabled the Emergency Call (eCall) function.
- The risk
- A disabled eCall system would prevent a vehicle occupant from contacting emergency services through the call center in an emergency, potentially delaying emergency responders and increasing the risk of injury.
- The fix
- MBUSA will notify owners, and dealers will inspect the communication module and activate it, if necessary, free of charge. The recall began March 31, 2021. Letters for the owners of the 9 additional vehicles were mailed July 9, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021030005.
Electrical system: software · Communication: auto crash notification
NHTSA campaign 21V058000 · reported February 5, 2021 · Mercedes-Benz USA, LLC · 1,292,258 vehicles potentially affected
- The problem
- Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 - 2021 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, GT-Class, C-Class, E-Class, S-Class, CLS-Class, SL-Class, B-Class, GLB-Class, GLC-Class, and G-Class vehicles. Please refer to the Part 573 report for specific vehicle model details. The software design of the communication module may fail to communicate the correct vehicle location for the emergency call system (eCall) in the event of a crash.
- The risk
- Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.
- The fix
- MBUSA will notify owners, and the communication module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. The recall began March 12, 2021. Owners may contact MBUSA customer service at 1-877-762-8267. MBUSA's number for this recall is 2021020025.
Seat belts: rear/other, buckle assembly · Structure: body, roof and pillars
NHTSA campaign 18V683000 · reported October 1, 2018 · Mercedes-Benz USA, LLC. · 4,702 vehicles potentially affected
- The problem
- Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2016-2018 Mercedes-Benz GLC300 and GLC300 4Matic, 2018 GLC350e and GLC63 AMG 4Matic and 2017-2018 GLC43 AMG 4Matic vehicles. The seat belt latch plates (the parts that insert into the buckles) for the outboard rear seats may retract into the interior paneling, preventing the occupants from being able to use the seat belts.
- The risk
- If the rear seat passengers cannot fasten their seat belts, they have an increased risk of injury in the event of a crash.
- The fix
- MBUSA will notify owners, and dealers will install felt strips between the C-pillar and rear side paneling, free of charge. The recall began November 2, 2018. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2018100002.
Seat belts: rear/other, buckle assembly · Structure: body, roof and pillars
NHTSA campaign 18V177000 · reported March 15, 2018 · Mercedes-Benz USA, LLC. · 121,858 vehicles potentially affected
- The problem
- Mercedes Benz USA LLC (MBUSA) is recalling certain 2017-2018 GLC43 AMG, 2016-2018 GLC300 4Matic, 2016-2018 GLC300, 2018 GLC63 AMG 4Matic, and 2018 GLC350e 4Matic vehicles. The seat belt latch plates (the parts that insert into the buckles) for the outboard rear seats may retract into the interior paneling, preventing the occupants from being able to use the seat belts.
- The risk
- If the rear seat passengers cannot fasten their seat belts, they have an increased risk of injury in the event of a crash.
- The fix
- MBUSA will notify owners, and dealers will install a buffer to the c-pillar paneling, free of charge. The recall is expected to begin May 14, 2018. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2018030012.
Exterior lighting: headlights
NHTSA campaign 17V819000 · reported December 18, 2017 · Mercedes-Benz USA, LLC. · 8,134 vehicles potentially affected
- The problem
- Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016-2017 GLC300, GLC300 4MATIC and GLC43 4MATIC vehicles. These vehicles may have misadjusted headlights, possibly resulting in the low beam headlights insufficiently illuminating the roadway. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices, and Associated Equipment."
- The risk
- An insufficiently illuminated roadway may increase the risk of a crash.
- The fix
- MBUSA will notify owners, and dealers will inspect the headlamp adjustment, adjusting it as necessary, free of charge. The recall began on January 12, 2018. Owners may contact MBUSA customer service at 1-877-496-3691.
Visibility: sun/moon roof assembly
NHTSA campaign 17V715000 · reported November 14, 2017 · Mercedes-Benz USA, LLC. · 9,379 vehicles potentially affected
- The problem
- Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2018 GLC300, GLC300 4Matic, and GLC43 AMG vehicles. The fixed panoramic sun roof frontal and side plastic panels may have insufficient bonding, allowing the panels to separate during vehicle operation.
- The risk
- If the sun roof panels detach from the vehicle, it can increase the risk of a crash or injury for following traffic.
- The fix
- MBUSA will notify owners, and dealers will inspect the bonding on the sun roof panels, correcting it as necessary, free of charge. The recall is expected to begin December 2017. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2017110009.
Air bags: frontal
NHTSA campaign 17V627000 · reported October 6, 2017 · Mercedes-Benz USA, LLC. · 495,290 vehicles potentially affected
- The problem
- Mercedes-Benz USA, LLC. (MBUSA) is recalling these vehicles: 2014-2018 CLA250, CLA250 4Matic, CLA45 AMG 4Matic, 2015-2018 GLA250, GLA250 4Matic, GLA45 AMG 4Matic, C300 4Matic, C63S AMG, 2012-2014 C250, C350, C300 4Matic, E550 4Matic, 2013-2014 C63 AMG, 2012-2015 C250 Coupe, C350 Coupe, C63 AMG Coupe, 2013-2015 C350 4Matic Coupe, GLK250 4Matic BlueTec, GLK350, GLK350 4Matic, 2016-2017 C350e, C43 AMG, 2015 C400 4Matic, 2016-2018 C63 AMG, GLC300, GLC300 4Matic, 2017-2018 C300 Coupe, C300 4Matic Coupe, C43 AMG, C63 AMG Coupe, C63S AMG Coupe, C300 Cabriolet, C300 4Matic Cabriolet, C43 AMG Cabriolet, C63 AMG Cabriolet, C63S AMG Cabriolet, GLC300 4Matic Coupe, GLC43 AMG, GLC43 AMG Coupe, 2014 E350 Coupe, E350 4Matic Coupe, E350 Cabriolet, E400 Hybrid, 2015-2017 E400 Coupe, E400 4Matic Coupe, E400 Cabriolet, 2014-2017 E550 Coupe, E550 Cabriolet, B250e, 2014-2016 E250 BlueTec, E63 AMG 4Matic Wagon, 2012-2013 E350 BlueTec, 2012-2016 E350, E350 4Matic, 2015-2016 E400, E400 4Matic, 2012 E63 AMG, 2014-2015 E250 4Matic BlueTec, 2013-2016 E350 Wagon, 2017 GLC300d 4Matic, and 2018 GLC350e 4Matic. The driver's air bag may unexpectedly deploy due to insufficient grounding of the steering components if an electrostatic discharge occurs and the air bag clockspring is broken.
- The risk
- If the driver air bag inadvertently deploys, it can increase the risk of injury and a crash.
- The fix
- MBUSA will notify owners, and dealers will add sufficient grounding to the steering components, free of charge. The recall began in December 6, 2017. Owners may contact MBUSA customer service at 1-877-496-3691.
Steering: electric power assist system
NHTSA campaign 17V574000 · reported September 19, 2017 · Mercedes-Benz USA, LLC. · 4 vehicles potentially affected
- The problem
- Mercedes-Benz USA, LLC. (MBUSA) is recalling one 2017 C43 AMG, one E300 4Matic sedan, one GLC300, and one E43 AMG 4Matic sedan. These vehicles have electrical power steering control units with improperly welded contact pins.
- The risk
- The improperly welded pins may lose contact, deactivating the power steering assist and increasing the risk of a crash.
- The fix
- MBUSA will notify owners, and dealers will replace the electric power steering rack, free of charge. The recall is expected to begin November 10, 2017. Owners may contact MBUSA customer service at 1-877-496-3691.
Seat belts: pretensioner
NHTSA campaign 17V251000 · reported April 11, 2017 · Mercedes-Benz USA, LLC. · 12,743 vehicles potentially affected
- The problem
- Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017 C300, C300 4Matic, C300 Coupe, C300 Coupe 4Matic, C43 AMG, C43 AMG Coupe, C43 AMG Cabrio, C63 AMG, C63 AMG Coupe, C63S AMG, C63S AMG Coupe, C63S Cabrio, GLC300, GLC300 4Matic, GLC43 AMG, S550, S550 4Matic, S550e, S600, S63 AMG 4Matic, S65, Mercedes-Maybach S550 4Matic, and Mercedes-Maybach S600 vehicles. The affected vehicles have front seat seatbelt pretensioners that may not function properly in the event of a crash. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 208, "Occupant Crash Protection," and 209, "Seat Belt Assemblies."
- The risk
- If the front seat seatbelt pretensioners do not function properly, the seat occupants may not be adequately restrained in the event of a crash, increasing the risk of injury.
- The fix
- MBUSA will notify owners, and dealers will replace the front seat belts, free of charge. The recall began October 13, 2017. Owners may contact MBUSA customer service at 1-800-367-6372.
Electrical system: starter assembly · Engine and engine cooling: engine
NHTSA campaign 17V114000 · reported February 23, 2017 · Mercedes-Benz USA, LLC. · 307,629 vehicles potentially affected
- The problem
- Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2015-2017 C300 4Matic, C300, CLA250, CLA250 4Matic and CLA45 AMG vehicles, 2017 C300 4Matic Cabrio, C300 4Matic Coupe, C300 Cabrio, C300 Coupe, E300, E300 4Matic, E400 4Matic Wagon, E43 AMG 4Matic, GLA250, GLA250 4Matic and GLC300 4Matic Coupe vehicles and 2016 C350e and GLC300 vehicles and 2016-2017 C450 4Matic AMG Sport and GLC300 4Matic vehicles. In the event that the engine or transmission cannot turn over, the starting current limiter may overheat from the repeated attempts of the starter motor attempting to start the vehicle.
- The risk
- If the starting current limiter overheats, the surrounding components can melt, increasing the risk of a fire.
- The fix
- MBUSA will notify owners, and dealers will install an additional fuse in the electrical line to the starter, free of charge. The recall began August 31, 2017. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2017080002.
What owners report
Recent complaints filed with NHTSA, shortened. These are unverified accounts from owners, not findings.
Oct 23, 2026 · Unknown or other
My 2017 Mercedes-Benz GLC 300 is equipped with a panoramic sunroof. The sunroof mechanism and rails were repaired and replaced previously. Approximately a month and a half ago, following heavy rainfall, I discovered water staining on the interior headliner, indicating possible water intrusion through the panoramic…
Oct 21, 2026 · Fuel/propulsion system
Independent service company said the car has a raw fuel smell under the vehicle. Signs of fuel leak at the connection between the high pressure fuel rail / high pressure fuel pump line. Mentioned a recall campaign of [phone removed]. That addresses this issue. I contacted Mercedes Benz dealers (2) and they said my VIN…
Oct 7, 2026 · Air bags · 189,000 miles
The contact's wife owns a 2017 Mercedes-Benz GLC300. The contact stated that while the vehicle was parked in the driveway, the air bags inadvertently deployed without impact to the vehicle. The vehicle was towed to the dealer and remained with the dealer for over a month. The contact was called by the dealer and…
Feb 5, 2026 · Fuel/propulsion system
I smell gas in my car. There is a recall for the fuel parts on the 2019. I have a 2017 with the same issue.
Feb 3, 2026 · Seat belts · 71,000 miles
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…
Source: NHTSA recall and complaint data, updated October 27, 2026. Latest complaint received October 23, 2026.