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2020 Mercedes-Benz Gls 450 Problems and Recalls
Owners filed 36 complaints with NHTSA about the 2020 Mercedes-Benz Gls 450, most often about the electrical (50% of complaints). It is the most complained-about Gls 450 model year since 2000 and has 22 recalls.
Most common 2020 Mercedes-Benz Gls 450 problems
Electrical
18 complaints · 50%While driving the vehicle, a series of electrical system warnings were displayed in rapid succession. Shortly thereafter, the vehicle lost power, the engine shut off, and the vehicle began to glide. This incident occurred on a residential street while the vehicle was travelling at 25-30 MPH. The warnings were specific…
Engine
9 complaints · 25%Fuel system
7 complaints · 19%The contact owns a 2020 Mercedes-Benz gls450. The contact stated she noticed a fuel odor coming from the vehicle when the windows were open. The contact sought medical attention due to breathing problems. The vehicle was taken to local dealer ed hicks imports located at 3102 s padre island dr, corpus christi, tx 78415…
Driver assistance
7 complaints · 19%Parts named most often: automatic emergency braking, warnings, adaptive cruise control.
Transmission
4 complaints · 11%Other or unspecified
4 complaints · 11%
Complaints are owner reports to NHTSA, not verified defects. One complaint can name several components, so shares add up to more than 100%.
2020 Mercedes-Benz Gls 450 recalls
Electrical: wiring
Risk: An overheated ground connection can increase the risk of a fire.
Fix: Dealers will inspect and tighten the 48-volt ground connection as necessary, free of charge. Owner notification letters were mailed on may 3, 2024. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2024040002.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2023-2024 gle 350, 2020-2024 gle 450, 2020-2023 gls 580, gle 580, 2019-2023 gls 450, 2021-2023 maybach gls 600, amg gls 63, 2021-2024 amg gle 53, amg gle 53 coupe, and amg gle 63 s vehicles. A 48-volt ground connection under the passenger seat may not be secured properly, resulting in the ground connection overheating.
Transmission: software
Risk: An engine stall increases the risk of a crash.
Fix: Dealers will update the transmission control unit software, free of charge. Owner notification letters were mailed march 29, 2024. Owners may contact mbusa customer service at 1-800-367-6372.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2020-2023 gle 450 and gls 450 vehicles. The transmission may not fully downshift in certain conditions, causing the engine to stall.
Visibility and wipers: defroster/defogger/hvac system
Risk: Water intrusion into the foot wells may cause corrosion and/or short circuits to electrical components, increasing the risk of fire. In addition, the emergency call (ecall) feature may be disabled and the doors may not unlock, increasing the risk of injury. Also, the engine may not start or may enter a limp-home mode, increasing the risk of a crash.
Fix: Dealers will inspect and reinstall the air conditioner drain hoses, as necessary, free of charge. Owner notification letters were mailed april 28, 2023. Owners may contact mbusa customer service at 1-800-367-6372. This recall is an expansion of recall numbers 21v-288 and 19v-587. Mbusa's numbers for this recall are 2023030014 and 15.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2020-2021 gle350, gle450, gls450, gls580, 2021 amg gle53, amg gle63, maybach gls600, amg gls63, and 2020 gle580 vehicles. The air conditioner drain hoses may have been incorrectly installed, causing water to drain into the passenger compartment.
Seats: mid/rear assembly
Risk: A seat with a seatback lock failure may not properly restrain occupants, increasing the risk of injury during a crash.
Fix: Dealers will inspect and replace the third-row seatback, as necessary, free of charge. Owner notification letters were mailed november 18, 2022. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2022100011.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2021 amg gls63, 2020-2022 gls450 and gls580 vehicles. Due to a manufacturing error, the locks on the third-row seatbacks may fail in the event of a crash.
Body and structure: body
Risk: Detached trim bars may cause a road hazard and increase the risk of a crash or injury.
Fix: Dealers will inspect and secure the rear window trim bars, as necessary, free of charge. Owner notification letters were mailed november 1, 2022. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2022090010.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2020-2022 gle350, gle450, gls450, 2021-2022 amg gle53, 2020-2021 gle580, gls580, and 2021 gle400e, amg gls63, amg gle63 s, and maybach gls600 vehicles. Due to a manufacturing error, the rear door window trim bars may detach.
Air bags: frontal
Risk: An air bag that does not deploy properly can increase the risk of injury in the event of a crash.
Fix: Dealers will correct the wiring harness routing, free of charge. Owners notification letters were mailed august 22, 2022. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2022070006.
Full defect summary
Mercedes-benz, llc (mbusa) is recalling certain 2020 mercedes-benz gls 450 and gls 580 vehicles. The front air bag wiring harness may be routed incorrectly, which can cause the air bag not to deploy properly. As such, these vehicles fail to comply with the requirements of federal motor vehicle safety standard number 208, "occupant crash protection."
Infotainment and connectivity: auto crash notification
Risk: 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.
Fix: 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.
Full defect summary
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.
Electrical: interior/under dash
Risk: An overheated electrical cable can increase the risk of a fire.
Fix: Dealers will inspect and tighten the ground cable bolt, as necessary, free of charge. Owner notification letters were mailed july 8, 2022. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2022040017.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2020-2022 gle450, gls450, 2021-2022 amg gle53, 2020-2021 gle580, gls580, 2021 amg gle63, maybach gls600 and amg gls63 vehicles. A ground cable bolt for the 48v ground connection under the front passenger seat may not be secured properly, which can cause the electrical cable to overheat.
Backup camera: display function
Risk: An inoperable rearview camera display reduces the driver's rear view, increasing the risk of a crash.
Fix: Dealers will update the rearview camera software, free of charge. Owner notification letters were mailed july 15, 2022. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2022060007.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2018-2021 cla-class, gle/gls-class, a-class, c-class, e-class, e-class coupe/convertible, gla/glb-class, glc-class, and cls-class vehicles. Please refer to mbusa's recall report for specific vehicle model details. The rearview camera may not display the rearview image due to a software error. As such, these vehicles fail to comply with the requirements of federal motor vehicle safety standard number 111, "rear visibility."
Fuel system: injectors
Risk: A fuel leak in the presence of an ignition source, such as hot engine or exhaust components, can increase the risk of a fire.
Fix: Dealers will replace the fuel rail and fuel injectors, free of charge. Owner notification letters were mailed april 22, 2022. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for the recall is 2022030003.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2019 amg g63, c300, e300, g550, amg gt63, amg gt53, 2019-2020 a220, gla250, glc300, 2016 c300, 2020 amg a35, amg c43, amg c63, cla250, e350, e450, glb250, gle450, gls450, gls580, s560, and sl550 vehicles equipped with a gasoline engine. During the manufacturing process, particles may have been trapped between the fuel rail and injectors, which can cause a fuel leak.
Seats
Risk: Incorrectly assembled seats may not properly restrain an occupant during a crash, increasing the risk of injury.
Fix: Dealers will inspect and repair the seats, as necessary, free of charge. Owner notification letters are expected to be mailed december 8, 2021. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2021110010.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2020 gls450, gls580, gle350, gle450, amg c63, and 2021 amg gle53 vehicles. The seats may have been assembled incorrectly.
Backup camera: camera
Risk: A backup camera that displays a blank image reduces the driver's rear view, increasing the risk of a crash or injury.
Fix: The multimedia system software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed beginning june 28, 2021. Owners may contact mbusa customer service at 1-800-367-6373. Mbusa's number for this recall is 2021050012.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2019-2021 cla-class, gle/gls-class, a-class, e-class, e-class coupe and convertible, gla/glb-class, glc-class, cls-class, and amg gt-class 4-door coupe vehicles. Please refer to mbusa's recall report for specific vehicle model details. The mbux multimedia system software may cause the display to remain black, or reboot after startup. This could result in the rearview camera image not displaying properly. As such, these vehicles fail to comply with the requirements of federal motor vehicle safety standard (fmvss) number 111, "rear visibility."
Equipment: air conditioner
Risk: Water intrusion into the driver and passenger side foot wells may cause corrosion and/or short circuits to electrical components, increasing the risk of fire. In addition, the emergency call (ecall) feature may be disabled and the doors may not unlock, increasing the risk of injury. Also, the engine may not start or may enter a limp-home mode, increasing the risk of a crash.
Fix: Dealers will inspect and correct the air conditioner drain hoses, as necessary, free of charge. Owner notification letters were mailed june 4, 2021. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2021040024.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2021 amg gle 53, 2020 gle350, gle450, gle580, gls450, and gls580 vehicles. The air conditioner drain hoses may have been incorrectly installed, causing water to drain into the passenger compartment.
Stability control: software
Risk: If the vehicle unexpectedly pulls to one side during an evasive maneuver, it can increase the risk of a crash.
Fix: Mbusa will notify owners, and dealers will update the esp software, free of charge. The recall began march 31, 2021. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2021030004.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2020-2021 gle450, gle350, and 2020 gls450, gle580, gls580 vehicles. During certain evasive driving maneuvers, the electronic stability program (esp) software may apply torque to one of the front wheels, pulling the vehicle to one side. As such, these vehicles fail to comply with the requirements of federal motor vehicle safety standard (fmvss) number 126, "electronic stability control systems."
Infotainment and connectivity: auto crash notification
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.
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.
Full defect summary
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.
Body and structure: dashboard
Risk: In the event of a crash where the passenger air bag deploys, an unsecured dashboard could impair the inflation of the passenger air bag, increasing the risk of injury.
Fix: Mbusa will notify owners, and dealers will replace the dashboard, free of charge. The recall began april 16, 2021. Owners may contact mbusa customer serviced at 1-800-367-6372. Mbusa's number for this recall is 2021030003.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2020 gls 450, gle 350, gle 450, and 2021 amg gle53 vehicles. The dashboard surface may not be properly secured to the base material.
Steering: electric power assist system
Risk: If the power steering, wiper motor, or left headlight malfunction there could be an increased risk of a crash.
Fix: Mbusa will notify owners, and dealers will relocate the ground connection, free of charge. The recall began november 13, 2020. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2020100015/6.
Full defect summary
Mercedes-benz USA, llc. (mbusa) is recalling certain 2020 gle 350, gle 450, gle 580, gls 450, gls 580 vehicles equipped with an optional illuminated mercedes-benz star logo in the front grill. The star logo's electrical ground connection may not be installed properly, potentially affecting the function of other components that share the same ground connection, such as the power steering control unit, wiper motor, and/or the left headlight.
Suspension: shock absorber
Risk: Premature wear of the front struts and rear shock absorbers can affect vehicle handling and control, increasing the risk of a crash.
Fix: Mbusa will notify owners, and dealers will replace the front strut assemblies and rear shock absorbers, free of charge. The recall began october 20, 2020. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2020090001.
Full defect summary
Mercedes-benz USA, llc. (mbusa) is recalling certain 2020 gle450, gls450, and gls580 vehicles. The sealing of the piston assembly in the front struts and rear shock absorbers may leak and fail prematurely.
Body and structure: frame and members
Risk: If the rear crossmember detaches from the vehicle, it can become a road hazard and increase the risk of a crash.
Fix: Mbusa will notify owners, and dealers will replace the rear crossmember, free of charge. The recall began july 17, 2020. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2020060013.
Full defect summary
Mercedes-benz USA, llc. (mbusa) is recalling certain 2020 gle350, gle450 and gls450 vehicles. The seams on the rear crossmember may have been insufficiently welded. This may allow cracks to form when towing, possibly causing the rear crossmember to detach from the vehicle.
Electrical: instrument cluster/panel
Risk: If the interior switches are not illuminated, they may be more difficult to find and operate, increasing the risk of a crash.
Fix: Mbusa will notify owners, and dealers will update the instrument cluster software, free of charge. The recall began march 31, 2020. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2020030019.
Full defect summary
Mercedes-benz USA, llc. (mbusa) is recalling certain 2020 cla250, cla250 4matic and cla35 amg 4matic, 2020-2021 gle350, gle350 4matic, gle450 4matic, gls450 4matic and gls580 4matic and 2021 gle53 amg coupe, gle63s amg 4matic, gls63 amg 4matic and maybach gls600 4matic vehicles. The instrument cluster software may deactivate the illumination of certain interior switches (switch bar, overhead control unit, steering wheel) if the hazard lights are turned on and the ignition switch is in the 'off' position. As such, these vehicles fail to comply with the requirements of federal motor vehicle safety standard (fmvss) number 101, "control and displays."
Body and structure: hinge and attachments
Risk: The detached trim can become a road hazard, increasing the risk of a crash.
Fix: Mbusa will notify owners, and dealers will inspect and fasten the rear door window trim, as necessary, free of charge. The recall began november 8, 2019. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2019100011.
Full defect summary
Mercedes-benz USA, llc. (mbusa) is recalling certain 2020 gle350, gle350 4matic, gle450 4matic, gls450 4matic, and gls580 4matic vehicles. The rear door window trim may detach.
Equipment: air conditioner
Risk: If a significant volume of water enters the driver and passenger side foot wells, it might cause corrosion and/or short circuits to the electrical components in the area, increasing the risk of fire. In addition, the emergency call (ecall) feature may be disabled; the vehicle may not be able to be unlocked and/or started; and the engine limp-home mode might be activated during driving. These features increase the risk of an injury or crash.
Fix: Mbusa will notify owners, and dealers will inspect and correct the air conditioner drain hoses, as necessary, free of charge. The recall began september 6, 2019. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2019080005.
Full defect summary
Mercedes-benz USA, llc. (mbusa) is recalling certain 2020 gle350, gle350 4matic, gls450 4matic, and gle450 4matic vehicles. The air conditioner drain hoses may have been incorrectly installed, causing water to drain from the air conditioner into the passenger compartment.
Recall repairs are free at any franchised dealer. Enter your VIN at nhtsa.gov/recalls to see which recalls are still open on your car.
Questions about the 2020 Mercedes-Benz Gls 450
- What are the most common problems with the 2020 Mercedes-Benz Gls 450?
- By NHTSA owner complaints: electrical (18 complaints); engine (9 complaints); fuel system (7 complaints).
- How many recalls does the 2020 Mercedes-Benz Gls 450 have?
- 22 recalls listed by NHTSA, the latest from March 15, 2024 (electrical). Check your VIN at nhtsa.gov/recalls to see which ones are still open on your car.
- Is the 2020 a bad year for the Mercedes-Benz Gls 450?
- It is the most complained-about Gls 450 model year since 2000, with 36 complaints. Complaint counts are not adjusted for how many cars were sold, so popular years collect more of them, and the newest years have had less time to.