CarRecallDB

2018 Mercedes-Benz GLS 550 recalls and problems

3 recalls and 6 owner complaints on file with NHTSA for the 2018 Mercedes-Benz GLS 550.

3
recalls
6
owner complaints
0
complaints mentioning a crash
0
mentioning a fire

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.

2018 Mercedes-Benz GLS 550 recalls

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.

Service brakes, hydraulic

NHTSA campaign 18V539000 · reported August 16, 2018 · Mercedes-Benz USA, LLC. · 9,044 vehicles potentially affected

The problem
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2018 Mercedes-Benz GLE350 4Matic, GLE350, GLS450 4Matic, GLS550 4matic, GLE43 AMG 4Matic, GLE63 AMG 4Matic, GLE63S AMG 4Matic, and GLS63 AMG 4Matic vehicles. The rear brake caliper pistons on these vehicles may not have been correctly coated, causing gas to become temporarily released into the rear brake hydraulic circuit, reducing braking performance.
The risk
Reduced braking performance can increase the risk of a crash.
The fix
MBUSA will notify owners, and dealers will bleed the rear axle brake system, free of charge. The recall began September 14, 2018. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2018080013.

Latches/locks/linkages: doors, latch

NHTSA campaign 17V816000 · reported December 18, 2017 · Mercedes-Benz USA, LLC. · 8,700 vehicles potentially affected

The problem
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017 GLE400 4Matic, GLE350 4Matic, GLE350, GLE550e 4Matic, GLE43 AMG 4Matic, GLE63 AMG 4Matic, GLS450, GLE63S 4Matic, GLS63 4Matic, S550e, S600, S63 AMG 4Matic, S65 AMG, S550, Mercedes-Maybach S600, Mercedes-Maybach S550 4Matic, GLE43 AMG 4Matic Coupe, GLE63S 4Matic Coupe, 2017-2018 GLS550 4Matic, S550 4Matic, 2018 S450, and S63 AMG 4Matic vehicles. The rear passenger door on the driver side may indicate that it is locked, when it may not be. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 206, "Door Locks and Door Retention Components."
The risk
If the door appears to be locked, the door may be unintentionally opened, increasing the risk of injury.
The fix
MBUSA will notify owners, and dealers will inspect the left rear door lock, replacing it as necessary, free of charge. The recall is expected to begin in January 2018. Owners may contact MBUSA customer service at 1-877-496-3691.

Most reported problems

Areas named in owner complaints to NHTSA. One complaint can name several areas.

What owners report

Recent complaints filed with NHTSA, shortened. These are unverified accounts from owners, not findings.

Jul 6, 2026 · Suspension · 75,045 miles

The contact owns a 2018 Mercedes-Benz GLS 550. The contact stated while driving at various speeds, the vehicle made an abnormal clicking sound when making a right turn, and an abnormal ticking sound at startup. There was no warning light illuminated. Another driver informed the contact that the front passenger-side…

Mar 10, 2024 · Visibility/wiper

Water collects at the front row floor at driver and passenger sides

Aug 19, 2021 · Service brakes, air · 4,500 miles

The contact owns a 2018 Mercedes Benz GLS550. The contact stated that when the brake pedal was depressed there was an abnormal noise detected. The brake warning indicator light was illuminated. The contact stated that the brake pad on one side of the disc was completely worn, and the other side of the disc was like…

Jan 6, 2020 · Electrical system · 32,000 miles

SEATBELT HAD TIGHTENED AND NOT RELEASED WHEN MY BODY MOVES. BRAKES ARE NOT APPLIED. TYPICALLY DURING DRIVING I'M SMALL ENOUGH TO MANEUVER MY HAND DOWN TO RELEASE RED SEAT BELT BUTTON. I'VE HAD TO STOP MY VEHICLE 5-10 TIMES TO RELEASE BELT. I HAVE 2 SMALL KIDS 7/ 11 BOTH ARE 60 POUNDS THEY ARE 4 FEET TALL AND 4'6' 7…

Nov 29, 2018 · Unknown or other · 7,000 miles

I WAS DRIVING IN A RURAL AREA WHEN ALL OF A SUDDEN I HEARD WHAT SOUNDED LIKE AN EXPLOSION. MY FIRST INSTINCT WAS THAT I HAD BLOWN A TIRE BECAUSE IT WAS SO LOUD. HOWEVER, THE CAR WAS HANDLING FINE AND NO WARNING MESSAGES CAME ON. MY HUSBAND AND I BOTH SAID "WHAT WAS THAT?" EVERYTHING ON SEEMED FINE MECHANICALLY SO WE…

GLS 550 model years compared

YearRecallsComplaintsCrashesFires
2017 5600
2018 3600
2019 2200

All Mercedes-Benz GLS 550 years →

Questions

Does the 2018 Mercedes-Benz GLS 550 have any recalls?
Yes. NHTSA lists 3 recalls for the 2018 Mercedes-Benz GLS 550, the most recent reported on February 5, 2021 (Electrical system: software, Communication: auto crash notification). Check a specific car by its VIN at nhtsa.gov/recalls.
What are the most common problems with the 2018 Mercedes-Benz GLS 550?
Owners have filed 6 complaints with NHTSA. The most frequently reported area is unknown or other (2 complaints), followed by electrical system (1).
How many 2018 Mercedes-Benz GLS 550 complaints mention a crash or fire?
0 of 6 complaints report a crash and 0 a fire; 0 injuries were reported in total. Complaints are unverified reports from owners.

Source: NHTSA recall and complaint data, updated October 27, 2026. Latest complaint received July 6, 2026.