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2018 MERCEDES-BENZ Gls 450

Owner reports · Recalls · Investigations

Limited comparison data

There is not enough comparable history to draw a useful model-year comparison.

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How this year compares

Owner complaints by model year

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Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

All reported categories

Tap a category to read its complaints. One report may name several components.

When problems were reported

Mileage at the reported incident

Limited mileage data: 7 of 14 reports include usable mileage. There isn’t enough coverage to show a useful chart.

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Service Brakes. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Suspension. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

1 crash reports3 fire reports0 injury reports

What owners actually said

14 reports
10 miles · Nov 9, 2018
Power Train

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 ANY CAR. BASICALLY YOU BRAKE A…

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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 ANY CAR. BASICALLY YOU BRAKE AND STOP THEN TURN OFF THE ENGINE WITH THE BUTTON. THE CAR SHIFTS TO 'N' INSTEAD OF 'P' AND IF YOU RELEASE THE BRAKE THE CAR SLIDES SINCE IT IS IN NEUTRAL. EVEN OLDER CARS DO NOT LET YOU TURN OFF THE ENGINE BEFORE SHIFTING TO P AR NEVER CARS JUST AUTOMATICALLY SHIFTS TO P WHEN YOU TURN OFF THE ENGINE. SINCE AS DRIVERS WE ARE NOT USED TO THIS, I CAN SAY THAT I HAD THE CAR SLIDE AT LEAST 5 TIMES THIS WEEK -FTER LEASING THIS VEHICLE. I CALLED MERCEDES AND THEY ACKNOWLEDGE THE ISSUE BUT THEY SAY THIS IS HOW THIS PARTICULAR CAR WAS BUILT. IT IS VERY DANGEROUS AND A NEVER BEFORE SEEN ISSUE WITH ANY CARS I HAVE DRIVEN OVER 25 YEARS I HAVE BEEN A DRIVER. THE OPERATING MANUAL ALSO STATES THAT THE CAR SHIFTS TO N WHEN TURNED OFF.

NHTSA ODI #11150448

200 miles · Aug 7, 2018
Electrical SystemFire

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 HILL. THE VEHICLE FAILED TO R…

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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 HILL. THE VEHICLE FAILED TO RESTART AND WAS TOWED TO FLETCHER JONES MOTORCARS (3300 JAMBOREE RD, NEWPORT BEACH, CA 92660, (949) 718-3000). THE DEALER DIAGNOSED THAT THE WIRING HARNESS MELTED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND A COMPLAINT WAS OPENED. THE FAILURE MILEAGE WAS 200.

NHTSA ODI #11118382

8,000 miles · May 25, 2018
Steering

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 PILOT, ' THE STEERING PILOT FE…

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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 PILOT, ' THE STEERING PILOT FEATURE HELPS THE DRIVER KEEP THE VEHICLE CENTERED BETWEEN LANE MARKINGS WHILE CRUISING ON STRAIGHT ROADS, OR EVEN IN GENTLE CURVES.' NOTHING COULD BE FURTHER FROM THE TRUTH. WHEN DEPLOYED, STEERING PILOT CAUSES MY VEHICLE TO WANDER BACK AND FORTH IN THE LANE AS A DRUNK DRIVER WOULD, OFTEN CROSSING THE CENTER OR GUTTER LINE, ACTIVATING LANE KEEPING ASSIST. THE VEHICLE TENDS TO DRIVE TOWARD THE LEFT OF CENTER, NOT IN THE CENTER OF THE LANE. STEERING PILOT TRIES TO TAKE OFF RAMPS TO THE LEFT OR RIGHT FROM THE FREEWAYS, AND TRIES TO TURN DOWN STREETS ON SURFACE ROADS WHEN I WANT TO GO STRAIGHT. IT APPEARS TO HAVE NO LEARNING OR UPDATE CAPABILITY, EVEN THOUGH THERE IS AN INTERNET STATION IN THE VEHICLE. I PRESUME MB ENGINEERS ARE MONITORING STEERING PILOT'S PERFORMANCE AND CAMERA PICTURES, BUT WHY NO UPGRADES IN PERFORMANCE LIKE MY TESLA FRIENDS ENJOY WITH THEIR AUTO DRIVE SYSTEMS? THE STEERING PILOT SEEMS TO BE ADVERTISED AS MUCH MORE CAPABLE THAN IT REALLY IS, AND IS SO DANGEROUS I THINK IT PROBABLY SHOULD HAVE NEVER BEEN OFFERED UNTIL IT WAS MUCH MORE DEVELOPED!

NHTSA ODI #11098029

8,000 miles · May 25, 2018
Exterior Lighting

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 SOON DISCOVERED THAT THE LEDS…

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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 SOON DISCOVERED THAT THE LEDS, WHILE SUPERIOR FOR FORWARD LIGHTING,PROVIDE LITTLE OR NO SIDE LIGHTING FOR THE DRIVER TO SEE WHEN TURNING ONTO DIVIDED HIGHWAYS WITH DARK ISLANDS, ETC. THIS IS BECAUSE THE LEDS ARE VERY STRAIGHT SHOOTING FORWARD. BUT THIS LED LIGHTING PACKAGE WAS SUPPOSED TO HAVE "CORNERING LIGHTS" ACTUATED BY TURN SIGNAL OR LOW SPEED WHILE TURNING WHICH SOLVES THIS PROBLEM. I HAD ALREADY EXPERIENCED THE ADVANTAGE OF THESE 'CORNERING LIGHTS' ON MY WIFE'S 2014 MERCEDES-BENZ GLK-250. BUT MY VEHICLE IS MISSING THE 'CORNERING LIGHT' FEATURE. IN CHECKING WITH THE DEALER AND MBUSA, THEY SAY THIS IS BECAUSE NHTSA WILL NOT ALLOW "CORNERING LIGHTS" ON THE GLS-450 BECAUSE OF THE HEIGHT OF THE HEADLIGHT UNIT ABOVE THE GROUND. COULD THIS BE TRUE? LACK OF CORNERING LIGHTS IN THE ACTIVE LED HEADLIGHTS MAKES CORNERING IN THIS VEHICLE UNSAFE AT NIGHT, AND THE LAMP HEIGHT RULE, IF THERE IS ONE, SHOULD BE MODIFIED AND RECALL ISSUED FOR GLS 450 VEHICLES WITH DEFECTIVE ACTIVE LED HEADLIGHTS MISSING THE CORNERING LIGHT FEATURE THEY ADVERTISE AS INCLUDED (SEE MBUSA.COM BUILD YOUR GLS450, LIGHTING PACKAGES). PLEASE TAKE ACTION ON THIS AND LET ME KNOW YOUR DECISION. THANK YOU!

NHTSA ODI #11098025

Official recalls

3

22V365000 · Communication: Auto Crash Notification; Electrical System:software

May 20, 2022

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 details. An error in the communication module's SIM card software can cause a mobile network connection failure, disabling the emergency call (eCall) system.

Consequence & remedy

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. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's numbers are for this recall is 2022060005 and 2023110006.

Additional source detail variants (2)

Communication: Auto Crash Notification

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 details. An error in the communication module's SIM card software can cause a mobile network connection failure, disabling the emergency call (eCall) system.

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. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's numbers are for this recall is 2022060005 and 2023110006.

Electrical System:software

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 details. An error in the communication module's SIM card software can cause a mobile network connection failure, disabling the emergency call (eCall) system.

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. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's numbers are for this recall is 2022060005 and 2023110006.

21V058000 · Communication: Auto Crash Notification; Electrical System:software

Feb 5, 2021

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.

Consequence & remedy

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.

Additional source detail variants (2)

Communication: Auto Crash Notification

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.

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.

Electrical System:software

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.

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 · Service Brakes, Hydraulic

Aug 16, 2018

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.

Consequence & remedy

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.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

0

No exact-year investigations in this snapshot.