2015 Mercedes-Benz Gl450: Reliability Data

Source: NHTSA — 22 complaints
22
Total Complaints
25,000mi
Median Mileage
ENGINE
Top Issue
1
Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

5,100 25th Percentile
25,000 Median Mileage
75,615 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

ENGINE
6
SUSPENSION
3
SEATS
2
ELECTRICAL SYSTEM
2
POWER TRAIN
2
UNKNOWN OR OTHER
2
SEATS:FRONT ASSEMBLY:HEAD RESTRAINT
1
ELECTRONIC STABILITY CONTROL (ESC)
1
VISIBILITY/WIPER
1
STEERING
1

Severity Assessment

1
Crashes
1
Fires
1
Injuries
0
Deaths

Sample Complaint Reports

"TL* THE CONTACT OWNS A 2015 MERCEDES BENZ GL450. THE CONTACT STATED THAT THE HEADREST PREVENTED THE CONTACT FROM PROPERLY INSTALLING A CHILD SAFETY SEAT IN THE REAR OF THE VEHICLE. THE CONTACT MENTIONED THAT THE HEADREST COULD ONLY BE REMOVED BY THE DEALER. THE VEHICLE WAS TAKEN TO THE DEALER, BUT W..."
"TRIED TO INSTALL CHILD SAFETY SEATS IN 2ND ROW SEATS. THE 2ND ROW HEADRESTS PREVENT THE PROPER INSTALLATION OF THE CHILD SAFETY SEATS. THE HEADRESTS CANNOT BE REMOVED, OR MOVED OUT OF THE WAY SO THAT THE CHILD SAFETY SEATS CAN BE INSTALLED PROPERLY. I HAVE REPORTED TO OUR MERCEDES-BENZ DEALER. TH..."
"TL* THE CONTACT OWNS A 2015 MERCEDES BENZ GL450. WHILE IN PARK, THE VEHICLE STARTED TO ROLL FORWARD AS IF THE VEHICLE WERE IN DRIVE. THE VEHICLE ROLLED OVER A CURB AND CRASHED INTO A TREE. THE VEHICLE WAS DRIVEN TO THE DEALER FOR DIAGNOSTIC TESTING, BUT WAS NOT REPAIRED. NO INJURIES WERE SUSTAINED ..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28