2018 MERCEDES-BENZ GLS 450
3 recalls — 20 complaints
22V365000 May 20, 2022
ELECTRICAL SYSTEM:SOFTWARE
Defect Description
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2022 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, AMG GT-Class, C-Class, E-Class, S-Class, SL-Class, GLC-Class, CLS-Class, GLB-Class, and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model de... Read more
Consequence
A disabled eCall system would prevent a vehicle occupant from contacting the emergency services call center in an emergency, potentially delaying emergency responders and increasing the risk of injury.
Remedy
The communication module software will be updated through an Over-the-Air (OTA) update or by a dealer, free of charge. Owner notification letters were mailed July 8, 2022. Owner notification letters will be mailed in phases, on July 8, 2022, May 17, 2024, July 29, 2024, and September 27, 2024. Ow... Read more
21V058000 Feb 5, 2021
ELECTRICAL SYSTEM:SOFTWARE
Defect Description
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 mod... Read more
Consequence
Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.
Remedy
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.
18V539000 Aug 16, 2018
SERVICE BRAKES, HYDRAULIC
Defect Description
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, caus... Read more
Consequence
Reduced braking performance can increase the risk of a crash.
Remedy
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.
Complaint Statistics
20 total complaints
1 crashes 4 fires
Top Reported Components
| Component | Complaints |
|---|---|
| ENGINE | 5 |
| SERVICE BRAKES | 2 |
| STRUCTURE:BODY | 2 |
| UNKNOWN OR OTHER | 2 |
| EXTERIOR LIGHTING | 1 |
| STEERING | 1 |
| ELECTRICAL SYSTEM:WIRING:FRONT UNDERHOOD | 1 |
| POWER TRAIN | 1 |
| ELECTRONIC STABILITY CONTROL (ESC) | 1 |
| ELECTRICAL SYSTEM | 1 |
ENGINE
Dec 5, 2025
Incident date: Dec 4, 2025
The contact owns a 2019 Jeep Compass. The contact stated that while driving at an undisclosed speed, the engine overheated, and the coolant hot warning light was illuminated. The contact stated that on several occasions, the vehicle was pulled over and allowed to cool down, and then coolant was adde... Read more
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
Dec 5, 2025
Incident date: Dec 4, 2025
January 2023 - Airbag suspension failed. Replaced by Mercedes dealership. December 2024 - Airbag suspension failed. Replaced by Mercedes dealership. April 2024: First brake failure. The brakes stopped while driving. Repaired. April 2025: Second brake failure. Brakes failed again. Repaired. The mec... Read more
Fire
SERVICE BRAKES
Dec 5, 2025
Incident date: Dec 4, 2025
January 2023 - Airbag suspension failed. Replaced by Mercedes dealership. December 2024 - Airbag suspension failed. Replaced by Mercedes dealership. April 2024: First brake failure. The brakes stopped while driving. Repaired. April 2025: Second brake failure. Brakes failed again. Repaired. The mec... Read more
Fire
ENGINE
Aug 26, 2025
Incident date: Aug 11, 2025
There was a small ticking/knocking noise that started the week before I took my Honda Pilot in to the dealer. I took the car in for regular service and told them about this noise. Under further inspection, I was advised by the Honda dealership that the piston connecting rod bearing had failed caus... Read more
ENGINE
Aug 26, 2025
Incident date: Aug 11, 2025
My engine is currently experiencing loud knocking/shaking. It worsens as my vehicle is accelerating it is causing my engine to lose ability to accelerate which has posed a safety concern. This vehicle is my main source of transportation for my family. We have taken this vehicle to the dealership whe... Read more
UNKNOWN OR OTHER
Apr 22, 2025
Incident date: Apr 1, 2025
Moldy smell coming from vents when AC runs. Had engine sprayed with a cleaner, but smell is still there. It is mold on the condenser.
ENGINE
Apr 14, 2025
Incident date: Apr 14, 2025
Engine let go due to a bad rod bearing
SEATS
Dec 27, 2022
Incident date: May 1, 2022
Third row seat will not lock. Warning message came on several months ago. I brought the vehicle in for service in may of 2022 to Mercedes Benz of Westwood MA. They neglected to repair the issue with the seat and returned the car back to me with the safety issue still unresolved. I spoke with the dea... Read more
UNKNOWN OR OTHER
Mar 21, 2022
Incident date: Mar 5, 2022
While driving our 2018 Mercedes GLS 450 down Highway 80 just outside Sacramento, CA, the stationary glass panel of our panoramic sunroof spontaneously explpoded. There was no impact by any outside force, it just shattered with the sound similar to a gunshot. Fortunately I did not lose control of the... Read more
STRUCTURE:BODY
Mar 21, 2022
Incident date: Mar 5, 2022
While driving our 2018 Mercedes GLS 450 down Highway 80 just outside Sacramento, CA, the stationary glass panel of our panoramic sunroof spontaneously explpoded. There was no impact by any outside force, it just shattered with the sound similar to a gunshot. Fortunately I did not lose control of the... Read more
ENGINE
Oct 14, 2021
Incident date: Jul 15, 2019
The contact owned a 2018 Mercedes Benz GLS450. The contact stated that after turning the ignition switch off, the driver suddenly discovered flames were coming from the engine compartment. The fire department was called to the scene and extinguished the flames. During the incident, the vehicle was d... Read more
Fire
STRUCTURE:BODY
Jan 6, 2021
Incident date: Jan 6, 2021
PART OF MY PANORAMIC SUNROOF SPONTANEOUSLY SHATTERED WHILE SITTING AT A STOPLIGHT. THERE WERE NO CARS OR TREES AROUND AT THE TIME. NOTHING TOUCHED THE CAR WHEN IT HAPPENED.
SERVICE BRAKES
Sep 8, 2020
Incident date: Aug 24, 2020
I WAS ALREADY 90% IN PARKING LINE WHICH IS HANDICAP'S. ABOUT TO STOP RIGHT FRONT OF HANDICAP SIGN, SUDDENLY VEHICLE START MOVING FORWARD WHILE MY FOOT WAS IN BRAKE SO I PUSH LITTLE HARD TO COMPLETE STOP BUT VEHICLE SUDDENLY ACCELERATE FORWARD SMASHING INTO THE BUILDING GLASS ENTRY WALL AND DOOR. I A... Read more
Crash
SUSPENSION
Jan 14, 2020
Incident date: Dec 17, 2019
I TOOK THE CAR TO THE SERVICE 3 TIMES IN 4 MONTHS. THERE ARE MANY PROBLEMS WITH THE CAR. THE FIRST PROBLEM WAS THAT THE LEFT REAR SHOCK WAS LEAKING WHICH MADE A SQUEAKING NOISE WHEN DRIVING. THERE WAS ALSO AN ODOR PROBLEM WITH THE CAR THAT WAS COMING FROM THE VENTILATIONS. THESE TWO PROBLEMS WERE FI... Read more
ELECTRICAL SYSTEM
Jan 14, 2020
Incident date: Dec 17, 2019
I TOOK THE CAR TO THE SERVICE 3 TIMES IN 4 MONTHS. THERE ARE MANY PROBLEMS WITH THE CAR. THE FIRST PROBLEM WAS THAT THE LEFT REAR SHOCK WAS LEAKING WHICH MADE A SQUEAKING NOISE WHEN DRIVING. THERE WAS ALSO AN ODOR PROBLEM WITH THE CAR THAT WAS COMING FROM THE VENTILATIONS. THESE TWO PROBLEMS WERE FI... Read more
ELECTRONIC STABILITY CONTROL (ESC)
Jan 14, 2020
Incident date: Dec 17, 2019
I TOOK THE CAR TO THE SERVICE 3 TIMES IN 4 MONTHS. THERE ARE MANY PROBLEMS WITH THE CAR. THE FIRST PROBLEM WAS THAT THE LEFT REAR SHOCK WAS LEAKING WHICH MADE A SQUEAKING NOISE WHEN DRIVING. THERE WAS ALSO AN ODOR PROBLEM WITH THE CAR THAT WAS COMING FROM THE VENTILATIONS. THESE TWO PROBLEMS WERE FI... Read more
POWER TRAIN
Nov 9, 2018
Incident date: Nov 2, 2018
I FOUND OUT THAT ONLY ON 2018 MERCEDES GLS MODELS, THE CAR LETS YOU TURN OFF THE ENGINE WITHOUT A WARNING AND PUTS THE CAR IN NEUTRAL AUTOMATICALLY. IT DOES NOT PUT THE CAR TO 'P' OR GIVES YOU A WARNING SAYING YOU NEED TO PUT THE GEAR TO 'P' TO STOP THE CAR. I HAVE NEVER SEEN SOMETHING LIKE THIS IN ... Read more
ELECTRICAL SYSTEM:WIRING:FRONT UNDERHOOD
Aug 7, 2018
Incident date: Aug 2, 2018
TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ GLS450. WHILE DRIVING 70 MPH, THE VEHICLE LOST POWER AND ALL THE WARNING INDICATORS ON THE INSTRUMENT PANEL ILLUMINATED. ALSO, WHEN THE BRAKE PEDAL WAS DEPRESSED, THE VEHICLE FAILED TO STOP. THE CONTACT STATED THAT THE VEHICLE FINALLY STOPPED UPON REACHING A... Read more
Fire
EXTERIOR LIGHTING
May 25, 2018
Incident date: May 25, 2018
MY GLS-450 HAS THE 'LIGHTING PACKAGE' WITH ACTIVE LED HEADLAMPS INCLUDING 'CORNER-ILLUMINATING FRONT HEADLAMPS, ACTIATED (ACTIVATED SPELLED WRONG) BY THE STEERING WHEEL OR TURN-SIGNAL USE, BRIGHTEN YOUR WAY INTO DRIVEWAYS AND GARAGES.' AS I LIVE IN A VERY DARK RURAL AREA, I ORDERED THESE LIGHTS. I... Read more
STEERING
May 25, 2018
Incident date: May 25, 2018
THIS IS A COMPLAINT ABOUT THE STEERING PILOT PART OF THE DRIVER ASSISTANCE PACKAGE OPTION I HAVE ON MY 2018 MERCEDES-BENZ GLS-450. THE STEERING PILOT IS SO POORLY DEVELOPED IT HAS ALMOST CAUSED ME TO CRASH SEVERAL TIMES, SO I HAVE TURNED IT OFF MOST OF THE TIME. THE MBUSA WEBSITE SAYS OF STEERING ... Read more
MERCEDES-BENZ GLS 450 — All Years Overview
Complete safety history for the MERCEDES-BENZ GLS 450 across all model years (2018–2023).
40
Total Recalls
168
Total Complaints
0
Investigations
13
Reported Crashes
8
Reported Fires
0
Reported Deaths