Mercedes' seven-passenger SUV is freshened for the 2017 model year, with revised interior and exterior styling, a nine-speed automatic, an upgraded air suspension, and the addition of the current--and more complex--Mercedes-Benz infotainment system. Our last tested diesel GL was plush and quiet, with supportive seats and a third-row seat that was roomy enough for adults.
Alerts
There are 9 recalls on this vehicle. Learn More.

Reliability

We expect the 2022 GLS to be much less reliable than other new cars. This prediction is based on Mercedes-Benz's brand history and data from the similar GLE.

Overall Reliability
Most Common Trouble Spots
Common Trouble Spot
Common Trouble Spot
The 2017 Mercedes-Benz GLS has been recalled 9 times by NHTSA. View Recalls
Research Years * Redesign year
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17*
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Overall Reliability Verdict
NA
NA
NA
NA
POTENTIAL TROUBLE SPOTS
Engine Major
NA
NA
NA
NA
Engine Minor
NA
NA
NA
NA
Engine Cooling
NA
NA
NA
NA
Transmission Major
NA
NA
NA
NA
Transmission Minor
NA
NA
NA
NA
Drive System
NA
NA
NA
NA
Fuel System
NA
NA
NA
NA
Electric System
NA
NA
NA
NA
Climate System
NA
NA
NA
NA
Suspension
NA
NA
NA
NA
Brakes
NA
NA
NA
NA
Exhaust
NA
NA
NA
NA
Paint/Trim
NA
NA
NA
NA
Body Integrity
NA
NA
NA
NA
Body Hardware
NA
NA
NA
NA
Power Equipment
NA
NA
NA
NA
In-car Electronics
NA
NA
NA
NA
Reliability indicates how models have performed in the past, providing the basis for predicting how the vehicles will hold up in the year ahead. These charts provide the most comprehensive reliability information available to consumers. Based on information received from our latest subscriber survey for over 300,000 vehicles, our reliability history charts give you a rundown on how 2000 through 2021 vehicles are holding up in 17 potential trouble spots, ranging from the engine, transmission, and brakes to power equipment and the electrical system. NA indicates that we did not receive a large enough sample size to provide data for a specific year. An X indicates that the vehicle was not manufactured for a specific year.

Learn more about car Reliability.

Owner Reported Trouble Spots

The Reliability score is based on our latest subscriber survey of 2017 Mercedes-Benz GLS owners. The owner comments describe problems respondents experienced with this vehicle.

In-car Electronics

CD or DVD players, radio, speakers, GPS, communication system (e.g., OnStar), display screen freezes or goes blank, phone pairing (e.g. Bluetooth), voice control commands, steering wheel controls, portable music device interface (e.g., iPod/MP3 player), backup or other camera/sensors.

What Owners Say

Backup or other camera/sensors

"On occasion when vehicle is placed into reverse, the screen displaying the rear camera view will go black. Does not happen all the time. Periodic occurrence."

Anonymous, PA (2017 Mercedes-Benz GLS 450.0 3.0-L V6 turbo)
Display screen freezes up

"It was related to the software glitch that caused the gps display to freeze from time to time."

Anonymous, IL (2017 Mercedes-Benz GLS 550 5.5-L V8 turbo)
In-dash navigation system (GPS)

"when stopped on L entering address with knob system would jump to M continually .Disc replaced by dealer with no charge ."

Jo Ann S., FL (2017 Mercedes-Benz GLS 450.0 3.0-L V6 turbo)

"The screen sometimes froze when I traveled out of town, to places outside of where I normally travel or to different cities altogether. The dealer identified the problem as a software glitch and it was properly fixed last January."

Anonymous, IL (2017 Mercedes-Benz GLS 550 5.5-L V8 turbo)

Exhaust

Muffler, pipes, catalytic converter, exhaust manifold, leaks.

What Owners Say

Other/unsure

"Backup sensors did not go off quickly enough to avoid an accident while in reverse. Other times volume of backup sensor warning is very low."

Anonymous, PA (2017 Mercedes-Benz GLS 450.0 3.0-L V6 turbo)

"Driver side airbag warning. Took car to dealer who replaced the steering column assembly. Unable to drive car for four days awaiting part"

Anonymous, FL (2017 Mercedes-Benz GLS 550.0 5.5-L V8 turbo)

Electric System

Alternator, starter, hybrid battery and related systems, regular battery, battery cables, engine harness, coil, ignition switch, electronic ignition, distributor or rotor failure, spark plugs and wires failure.

What Owners Say

Tire pressure monitor

"Tire pressure monitor for one tire continually warned that the tire had insufficient pressure. Went to the dealer twice to fix without success. Finally the dealership the 3rd visit changed out the monitoring system. Problem was fixed."

Anonymous, ME (2017 Mercedes-Benz GLS 550.0 5.5-L V8 turbo)

"Continually has warning light that tire pressure system on one tire is not working. This happens every time you drive on a bumpy road. Light goes out after you drive on a smooth road for 10-15 miles. Dealership has refused to fix this issue since the warning light is out when we take the car to the dealer even though the car is still under warranty."

Anonymous, ME (2017 Mercedes-Benz GLS 550.0 5.5-L V8 turbo)

Power Equipment

Cruise control, clock, warning lights, body control module, keyless entry, wiper motor or washer, tire pressure monitor, interior or exterior lights, horn, gauges, 12V power plug, remote engine start, alarm or security system

What Owners Say

Battery (not hybrid or electric)

"Battery kept draining resulting in no engine start. Happened three times. 2 out of 3 MERCEDES-BENZ car dealerships were unable to fix the problem."

Anonymous, ME (2017 Mercedes-Benz GLS 550.0 5.5-L V8 turbo)

Drive System

Driveshaft or axle, CV joint, differential, transfer case, 4WD/AWD components, driveline vibration, traction control, electronic stability control (ESC), electrical failure.

What Owners Say

Driveline vibration

"There is an Inherent vibration issue in all 2017 & 2018 MB GLS 450's. MB (Germany) is well aware of the problem - dating back to 2010 +/- - and has NO fix. I would NOT recommend this vehicle to anyone who drives on the highway at interstate speeds (70 mph or above)."

Anonymous, TN (2017 Mercedes-Benz GLS 450.0 4.7-L V8 turbo)

Paint/Trim

Paint (fading, chalking, cracking, or peeling), loose interior and exterior trim or moldings, rust.

What Owners Say

Loose interior trim or moldings

"Some trim around the driver's seat belt holster fell off. It hasn't affected my ability to buckle the seat belt but I'm disappointed that it would come off during routine use. It was replaced under warranty."

Anonymous, IL (2017 Mercedes-Benz GLS 550.0 5.5-L V8 turbo)

Climate System

Blower (fan) motor, A/C compressor, condenser, evaporator, heater system, automatic climate control, refrigerant leakage, electrical failure.

Suspension

Shocks or struts, ball joints, tie rods, wheel bearings, alignment, steering linkage (includes rack and pinion), power steering (pumps and hoses, leaks), wheel balance, springs or torsion bars, bushings, electronic or air suspension.

Body Hardware

Power or manual windows, locks and latches, tailgate, hatch or trunk, doors or sliding doors, mirrors, seat controls, safety belts, sunroof, convertible top.

Engine Cooling

Radiator, cooling fan, antifreeze leaks, water pump, thermostat, overheating.

Body Integrity

Squeaks, rattles, wind noises, loose or cracked seals and/or weather-stripping, air and water leaks.

Transmission Minor

Gear selector or linkage, leaks, transmission computer, transmission sensor or solenoid, clutch adjustment, rough shifting, slipping transmission.

Engine Major

Engine rebuild or replacement, cylinder head, head gasket, turbo or supercharger, timing chain or timing belt.

Brakes

Antilock system (ABS), parking brake, master cylinder, calipers, rotors, pulsation or vibration, squeaking, brake failure or wear.

Engine Minor

Accessory belts and pulleys, engine computer, engine mounts, engine knock or ping, oil leaks.

Fuel System

Check engine light, sensors (includes O2 or oxygen sensor), emission control devices (includes EGR), engine computer, engine computer, fuel cap, fuel gauge/sender, fuel injection system, fuel pump, fuel leaks, stalling or hesitation.

Compare 2017 Models

No Data Available
Recalls
PROVIDED BY
COMMUNICATION
Feb 12, 2021
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.
Summary:
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.
What should you do:
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.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
NHTSA CAMPAIGN ID Number: 21V072000
Potential Number of Units Affected: 67
COMMUNICATION, ELECTRICAL SYSTEM
Feb 05, 2021
Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.
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.
What should you do:
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.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
NHTSA CAMPAIGN ID Number: 21V058000
Potential Number of Units Affected: 1292258
COMMUNICATION
Nov 01, 2019
An inaccurate vehicle location may delay emergency responders, increasing the risk of injury.
Summary:
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2013-2017 vehicles due to a software fault that may cause the date and time for the emergency call system (eCall) to differ from the actual date and time, potentially relaying an inaccurate vehicle location. For a full list of the affected models visit: https://static.nhtsa.gov/odi/rcl/2019/RMISC-19V787-4620.pdf
What should you do:
MBUSA has initiated an Over the Air (OTA) remote update. MBUSA will also notify owners, and dealers will check software for a successful OTA or update the communication module software as needed, free of charge. The recall began December 23, 2019. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2019120008.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
NHTSA CAMPAIGN ID Number: 19V787000
Potential Number of Units Affected: 24226
SUSPENSION
Apr 27, 2018
The leaking oil in the presence of an ignition source can increase the risk of a fire.
Summary:
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2012-2014 ML350 Bluetec 4Matic and ML550 4Matic, 2012-2015 ML63 AMG 4Matic and ML350 4Matic, 2013-2016 GL350 Bluetec 4Matic, GL550 4Matic and GL63 AMG 4Matic, 2017 GLS350d 4Matic, GLS450 4Matic, GLS550 4Matic and GLS63 AMG 4Matic, 2015 ML400 4Matic, 2016 GLE400 4Matic, GLE350 4Matic, GLE63 AMG 4Matic, GLE63S AMG 4Matic, GLE450 4Matic Coupe and GLE63S AMG 4Matic Coupe, 2015-2016 GL450 4Matic and 2013-2014 GL450 4Matic vehicles equipped with the Active Curve System (ACS). In certain driving conditions, if the oil level in the ACS reservoir is below the minimum level, the oil may foam and leak out of the vent holes in the reservoir cap.
What should you do:
MBUSA will notify owners, and dealers will correct the oil level as necessary and replace the reservoir sealing cap to prevent oil foam from leaking out, free of charge. The recall began August 30, 2018. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2018070015.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
NHTSA CAMPAIGN ID Number: 18V272000
Potential Number of Units Affected: 9725
LATCHES/LOCKS/LINKAGES
Dec 18, 2017
If the door appears to be locked, the door may be unintentionally opened, increasing the risk of injury.
Summary:
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."
What should you do:
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.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
NHTSA CAMPAIGN ID Number: 17V816000
Potential Number of Units Affected: 8700
AIR BAGS, VISIBILITY
Oct 17, 2017
If the passenger's frontal air bag does not function as designed in the event of a crash, the front seat passenger has an increased risk of injury.
Summary:
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 GLE300d 4Matic, GLE400 4Matic, GLE350 4Matic, GLE63 AMG, GLE63 AMG Coupe, GLE63S AMG and GLE63S AMG Coupe, and 2017 GLS450 4Matic, GLE550 4Matic, and GLE63 AMG 4Matic vehicles. These vehicles may have excess bulkhead insulation extending into the lower windshield area, possibly affecting the windshield bonding and the full protective function of the passenger's frontal air bag in the event of a crash.
What should you do:
MBUSA will notify owners, and dealers will remove any excess bulkhead insulation and rework the windshield bonding, as necessary, free of charge. Interim owner letters will be mailed in December 2017. Owners will receive a second notice when the remedy is available in late January 2018. MBUSA's number for this recall is 2018020002. Owners may contact MBUSA customer service at 1-877-496-3691.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
NHTSA CAMPAIGN ID Number: 17V655000
Potential Number of Units Affected: 3620
STEERING
Apr 11, 2017
If water enters the power steering control unit, the power steering assist may be deactivated, increasing the risk of a crash.
Summary:
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2016 GLE300d 4Matic, E400 4Matic Coupe, GL63 AMG, GLE350, GLE350 4Matic, GLE350d 4Matic, GLE400 4Matic, GLE43 AMG Coupe 4Matic, GLE550e 4Matic, GLE63 AMG 4Matic, GLE63S AMG 4Matic and GLE63S AMG Coupe 4Matic vehicles, 2017 E300 4Matic and GLS63 AMG 4Matic vehicles, and 2016-2017 GL350 4Matic BlueTec, GL450 4Matic, and GL550 4Matic vehicles. The affected vehicles have an electric power steering connector that may be insufficiently sealed, allowing water to enter the control unit.
What should you do:
MBUSA will notify owners, and dealers will replace the connector and inspect the electric power steering rack, replacing the rack as necessary. These repairs will be performed free of charge. Remedy parts are currently unavailable. Interim notices informing owners of the safety risk are expected to be mailed June 30, 2017. Owners will receive a second notice when remedy parts become available. Owners may contact MBUSA customer service at 1-800-367-6372.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
NHTSA CAMPAIGN ID Number: 17V241000
Potential Number of Units Affected: 58323
UNKNOWN OR OTHER
Feb 08, 2017
In the event of a crash, if objects are not secured within the center console, they may strike the vehicle occupants, increasing their risk of injury.
Summary:
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017 GLE 400 4Matic, GLE 350 4Matic, GLE 350, GLE 550E 4Matic, GLE 63 AMG, GLE 63S AMG, GLE 43 AMG 4Matic Coupe, GLE 63S AMG 4Matic Coupe, GLS 450 4Matic, GLS 550 4Matic, and GLS 63 AMG 4Matic vehicles. In certain types of crash events, the center console may unlatch, allowing the objects within to fly around the cabin. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 201, "Occupant Protection in Interior Impact."
What should you do:
MBUSA will notify owners, and dealers will modify the center console so that it remains latched in a crash, free of charge. The recall is expected to begin in early March 2017. Owners may contact MBUSA customer service at 1-800-367-6372.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
NHTSA CAMPAIGN ID Number: 17V077000
Potential Number of Units Affected: 5882
AIR BAGS
Dec 15, 2016
If the front passenger air bag does not deploy as necessary in the event of a crash, the front passenger has an increased risk of injury.
Summary:
Mercedes-Benz USA, LLC (MBUSA) is recalling certain model year 2016-2017 GL350 4Matic Bluetec, GL550 4Matic, GLE350 4Matic, GLE43 AMG Coupe, GLE450 4Matic, 2016 GLE300d 4Matic, GLE350, GLE350d 4Matic, GLE400 4Matic, GLE550e 4Matic, GLE63 AMG, GLE63 AMG 4Matic, GLE63S AMG 4Matic Coupe, and 2017 GLS63 AMG vehicles manufactured April 23, 2014, to May 10, 2016. The front passenger seat Occupant Classification System (OCS) calibration may be incorrect, and as a result, the system can incorrectly classify the occupant as a child seat, deactivating the front passenger air bag.
What should you do:
MBUSA will notify owners, and dealers will update the OCS software, free of charge. Owners may contact MBUSA customer service at 1-800-367-6372.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
NHTSA CAMPAIGN ID Number: 16V903000
Potential Number of Units Affected: 47799
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