MERCEDES-BENZ GL450 · model year

2009 MERCEDES-BENZ GL450

19 NHTSA complaints, 1 crash report for this specific cohort.

NHTSA overall rating

Not crash-tested

New Car Assessment Program

The 2009MERCEDES-BENZGL450 carries 19 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 1 crash, 0 fires, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.

Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2009 GL450 is air bags with 8 filings, followed by unknown or other (3) and suspension (2). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability.

NHTSA currently has 15 investigation files overlapping the 2009 GL450. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.

19
Complaints
1
Crashes
0
Fires
0
Injuries
0
Deaths

Total Complaints

19 filings

Crashes Reported

1 reports

Source

NHTSA ODI

Federal complaints database

Complaints vs. fleet median (215)

At or below the fleet median complaint volume.

Complaints by Component

ComponentCount
AIR BAGS8
UNKNOWN OR OTHER3
SUSPENSION2
ELECTRONIC STABILITY CONTROL (ESC)1
SERVICE BRAKES1
EXTERIOR LIGHTING1
SERVICE BRAKES, HYDRAULIC1
ELECTRICAL SYSTEM1
ENGINE1

Recent Complaints

20221019SERVICE BRAKES, HYDRAULIC

The contact owns a 2009 Mercedes-Benz GL450. The contact stated while driving at an undisclosed speed, the brake pedal was depressed, and the vehicle started shuddering. The check engine warning light was illuminated. The vehicle was towed to the dealer who informed the contact that the vehicle was not safe to drive. The vehicle was towed to the dealer where the recall repair of NHTSA Campaign Number: 22V315000 (Service Brakes, Hydraulic) was completed; however, after the recall repair was completed, the vehicle failed to start. The dealer replaced the battery and completed other unknown repairs on the vehicle. The contact stated that he picked up and drove the vehicle to his residence; however, the vehicle failed to start the next day. The vehicle was towed to the dealer. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that they would reimburse the rental car cost. The failure mileage was approximately 143,300.

Mileage: 143,300

20221019ELECTRICAL SYSTEM

The contact owns a 2009 Mercedes-Benz GL450. The contact stated while driving at an undisclosed speed, the brake pedal was depressed, and the vehicle started shuddering. The check engine warning light was illuminated. The vehicle was towed to the dealer who informed the contact that the vehicle was not safe to drive. The vehicle was towed to the dealer where the recall repair of NHTSA Campaign Number: 22V315000 (Service Brakes, Hydraulic) was completed; however, after the recall repair was completed, the vehicle failed to start. The dealer replaced the battery and completed other unknown repairs on the vehicle. The contact stated that he picked up and drove the vehicle to his residence; however, the vehicle failed to start the next day. The vehicle was towed to the dealer. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that they would reimburse the rental car cost. The failure mileage was approximately 143,300.

Mileage: 143,300

20221019ENGINE

The contact owns a 2009 Mercedes-Benz GL450. The contact stated while driving at an undisclosed speed, the brake pedal was depressed, and the vehicle started shuddering. The check engine warning light was illuminated. The vehicle was towed to the dealer who informed the contact that the vehicle was not safe to drive. The vehicle was towed to the dealer where the recall repair of NHTSA Campaign Number: 22V315000 (Service Brakes, Hydraulic) was completed; however, after the recall repair was completed, the vehicle failed to start. The dealer replaced the battery and completed other unknown repairs on the vehicle. The contact stated that he picked up and drove the vehicle to his residence; however, the vehicle failed to start the next day. The vehicle was towed to the dealer. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that they would reimburse the rental car cost. The failure mileage was approximately 143,300.

Mileage: 143,300

20220116UNKNOWN OR OTHER

I was driving 70 down an interstate a Saturday around 4:30 pm and heard a noise as if my sunroof opened a bit, then I heard a loud pop and a rush of air and looked in my rearview mirror and didn't see anything, I looked up seen the sunroof was gone. All I could think about is that could have really caused a serious accident. Glad no one was around me at the time. I doubled back twice and could not find the sunroof glass. I got home and put a couple pieces of cardboard and plastic down and duct taped it before the snow storm hits. A day after and my heart is still racing knowing that could have cause a wreck.

20190217AIR BAGS

TAKATA INFLATORS : THE SRS LIGHT IS CONTINUOUSLY STAYING ON IN THE VEHICLE. AS SOON AS THE VEHICLE IS STARTED THE LIGHT COMES ON AND DOES NOT GO OFF UNTIL THE VEHICLE GOES BACK OFF.

Mileage: 100,000

20190217SERVICE BRAKES

TAKATA INFLATORS : THE SRS LIGHT IS CONTINUOUSLY STAYING ON IN THE VEHICLE. AS SOON AS THE VEHICLE IS STARTED THE LIGHT COMES ON AND DOES NOT GO OFF UNTIL THE VEHICLE GOES BACK OFF.

Mileage: 100,000

20190217EXTERIOR LIGHTING

TAKATA INFLATORS : THE SRS LIGHT IS CONTINUOUSLY STAYING ON IN THE VEHICLE. AS SOON AS THE VEHICLE IS STARTED THE LIGHT COMES ON AND DOES NOT GO OFF UNTIL THE VEHICLE GOES BACK OFF.

Mileage: 100,000

20181119ELECTRONIC STABILITY CONTROL (ESC)

I AM HAVING ISSUES WITH MY SUSPENSION. I'VE HAD TO REPLACE IT TWICE IN 1 YEAR. A RECALL SHOULD BE ISSUED ON THIS.

Mileage: 126,000

20181119SUSPENSION

I AM HAVING ISSUES WITH MY SUSPENSION. I'VE HAD TO REPLACE IT TWICE IN 1 YEAR. A RECALL SHOULD BE ISSUED ON THIS.

Mileage: 126,000

20180222SUSPENSION

I PURCHASED MY MB GL450 IN 2010 AND AT THAT TIME IT WAS COVERED AS A PRE-OWNED MB VEHICLE. UNDER THE WARRANTY, I HAD THE AIR RIDE SUSPENSION FIXED TWICE. ONCE ON FRONT LEFT AND RIGHT. AFTER THE WARRANT EXPIRED, I HAVE HAD TO DO BOTH SIDES OF MY SUSPENSION AGAIN. NOW THE FRONT LEFT HAS FAILED AND NEEDS TO BE REPAIRED. I HAVE READ MY BLOGS AND POSTS ABOUT THIS MB SUSPENSION DEFECT AND WANT HOPE THE NHTSA CAN PUSH MB TO ISSUE A RECALL TO FIX THIS FAILED PRODUCT.

Mileage: 121,000

20171210AIR BAGS

TAKATA RECALL: STILL NO REMEDY AVAILABLE PER MERCEDES BENZ; FIRST NOTICE RECEIVED 2/2017.

20171207AIR BAGS

THIS COMPLAIN IS ABOUT THE RECALL REPORT AS BELOW FEB 11,2016 MANUFACTURER RECALL NUMBER2016020003 NHTSA RECALL NUMBER16V081 DESCRIPTION: I HAVE NEVER BEEN CONTACTED BY THE MANUFACTURER ABOUT THIS RECALL. APPARENTLY, THE MANUFACTURER HAS FAILED OR IS UNABLE TO REMEDY THIS SAFETY RECALL FOR YOUR VEHICLE IN A TIMELY MANNER.

20171114AIR BAGS

TAKATA RECALL MY VEHICLE IS PART OF THE RECALL AND THERE IS STILL NO FIX FOR MY PROBLEM. THIS IS EXTREMELY DANGEROUS, WE ARE DRIVING WITH A TICKING TIME BOMB.

Mileage: 10

20171109AIR BAGS

TAKATA RECALL THE RECALL WAS INSTITUTED FEBRUARY 2016, YET TO DATE THERE HAS BEEN NO REMEDY OFFERED BY THE MANUFACTURER AND NO INDICATION AS TO WHEN THEY WILL BE REPLACING THE AIRBAGS.

20171101AIR BAGS

TAKATA RECALL A RECALL NOTICE WAS ISSUED FOR MY VEHICLE'S (2009 BENZ GL450) AIRBAGS. HOWEVER, TAKATA / MERCEDES BENZ DO NOT HAVE A REMEDY AVAILABLE FOR MY VEHICLE DESPITE THE RECALL DATE BEING MORE THAN 1 YEAR AGO.

Mileage: 124,000

20170503UNKNOWN OR OTHER

WE HAD TROUBLE TOWING OUR TRAVEL TRAILER, WE LOOKED UNDER OUR CAR AND THE WELD WAS BROKEN ON OUR HITCH. WE TOOK IT TO THE DEALERSHIP AND THEIR INSPECTION CONFIRMED IT WAS A "BAD WELD".THEY WANT US TO PAY $900 TO FIX. THIS IS THE EXACT SAME PROBLEM AND HITCH THAT WAS RECALLED IN 2007 AND 2008, SO MERCEDES CONTINUED TO USE THE SAME HITCH AND WELD IN YEAR 2009 AND NOW IT HAS FAILED AFTER 4 TIMES TOWING. THE RUST ON OUR PICTURE INDICATES THE WELD HAD FAILED MUCH PRIOR TO US REALIZING IT.

Mileage: 39,000

20170405AIR BAGS

TL* THE CONTACT OWNS A 2008 MERCEDES BENZ GL450. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 16V081000 (AIR BAGS) HOWEVER, THE PART TO DO THE REPAIR WAS UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PART DISTRIBUTION DISCONNECT.

20170203AIR BAGS

TL* TAKATA RECALL. THE CONTACT OWNS A 2009 MERCEDES-BENZ GL450. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 16V081000 (AIR BAGS) AND STATED THAT THE PART WAS NOT AVAILABLE WITHIN A REASONABLE TIME FRAME TO SCHEDULE THE RECALL REPAIR. THE DEALER DID NOT GIVE A SPECIFIC DATE FOR WHEN THE PART WOULD BECOME AVAILABLE. THE MANUFACTURER COULD NOT PROVIDE AN ESTIMATED DATE FOR WHEN THE CONTACT'S VEHICLE WOULD RECEIVE THE RECALL REPAIR. THE CONTACT WAS NOT EXPERIENCING A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE. UPDATED 05/10/17*LJ UPDATED 10/10/2017*JS

20170203CrashUNKNOWN OR OTHER

I WAS DRIVING ON MY WAY HOME FROM WORK TODAY 2/3/2017 AND I WAS MERGING ONTO HIGHWAY WHEN I HEARD A LOUD EXPLOSION. I THEN SAW THAT MY SUNROOF HAD SHATTERED AND WAS BOWED OUT. THERE IS A LARGE HOLE IN THE CENTER OF THE SUNROOF AND THE REST OF THE GLASS IS SPIDERWEBBED. NOTHING HAD HIT MY CAR OR MY SUNROOF. I WAS ONLY GOING ABOUT 15 MPH AS I WAS STILL ON A ON RAMP. IT WAS VERY SCARY AND DANGEROUS. I CALLED MERCEDES WHO IS NO HELP. THEY NEED TO RECALL THIS OR BE HELD RESPONSIBLE. THIS COULD HAVE CAUSED ME TO CRASH OR IF MY SUNROOF COVER WAS OPENED I WOULD HAVE BEEN SHOWERED IN GLASS.

Mileage: 104,000

Compare 2009MERCEDES-BENZGL450 to Similar Vehicles

NHTSA Investigations

View all investigations

Frequently Asked Questions

How many complaints does the 2009 MERCEDES-BENZ GL450 have?
The 2009 MERCEDES-BENZ GL450 has 19 NHTSA complaints, 1 crashes, 0 fires, 0 injuries, and 0 deaths reported.
What are the most common problems with the 2009 MERCEDES-BENZ GL450?
The most-complained component for the 2009 MERCEDES-BENZ GL450 is AIR BAGS with 8 complaints. Other frequently reported areas include UNKNOWN OR OTHER and SUSPENSION.
Is the 2009 MERCEDES-BENZ GL450 safe to buy?
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. No NHTSA crash test rating is available for this model year. Compare with other model years using the links above.
Where does this data come from?
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.

Vehicle Safety Guides

Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.