AutoUtility currently tracks 57 official NHTSA owner defect complaints for the 2020 Mercedes-Benz GLB. Body & Structure issues are the most frequently reported category, appearing in 14 complaints (24.6% of submitted records). Among these NHTSA complaint records, 2 filings cite a crash, 1 cites a fire, 2 report one or more injuries.

Key Problem Findings
  • • Total NHTSA Complaints: 57 reports
  • • #1 Reported Problem Area: Body & Structure (14 reports • 24.6% of submitted complaints)
  • • Secondary Problem Areas: Electrical System (10), Fuel & Propulsion System (7)
  • • Crash-Citing Complaints: 2 filings
  • • Fire-Citing Complaints: 1 filings
  • • Complaints Reporting Injuries / Fatalities: 2 injury filings • 0 fatality filings
Reporting Methodology: Statistics describe unverified consumer submissions voluntarily filed with NHTSA. Complaint volume is not normalized for vehicle sales volume or miles driven. Multiple components can be cited within a single owner complaint submission.
Total Complaints
57
Submitted to NHTSA ODI
Crash-Citing Complaints
2
Filings citing a collision
Fire-Citing Complaints
1
Filings citing smoke or fire
Complaints Reporting Injuries
2
Filings citing one or more injuries
Complaints Reporting Fatalities
0
Consumer filings citing fatalities

Most Reported Problems for 2020 Mercedes-Benz GLB

Top automotive subsystem defect categories ranked by unique owner complaint volume in federal records

#1 Problem Area 24.6% of complaints

Body & Structure

14 owner complaints submitted to NHTSA ODI
⚠️ NHTSA Recall Context

NHTSA records list 3 official safety recall campaigns for this model year involving the same broad component area:

*Component overlap means an official recall exists for the same broad vehicle system. It does not establish that an individual owner complaint was caused by, covered by, or resolved through that recall.
✓ 0 crashes or fires cited
#2 Problem Area 17.5% of complaints

Electrical System

10 owner complaints submitted to NHTSA ODI
⚠️ NHTSA Recall Context

NHTSA records list 3 official safety recall campaigns for this model year involving the same broad component area:

*Component overlap means an official recall exists for the same broad vehicle system. It does not establish that an individual owner complaint was caused by, covered by, or resolved through that recall.
✓ 0 crashes or fires cited
#3 Problem Area 12.3% of complaints

Fuel & Propulsion System

7 owner complaints submitted to NHTSA ODI
⚠️ NHTSA Recall Context

NHTSA records list 1 official safety recall campaign for this model year involving the same broad component area:

*Component overlap means an official recall exists for the same broad vehicle system. It does not establish that an individual owner complaint was caused by, covered by, or resolved through that recall.
✓ 0 crashes or fires cited
#4 Problem Area 12.3% of complaints

Air Bags & Restraints

7 owner complaints submitted to NHTSA ODI
⚠️ NHTSA Recall Context

NHTSA records list 3 official safety recall campaigns for this model year involving the same broad component area:

*Component overlap means an official recall exists for the same broad vehicle system. It does not establish that an individual owner complaint was caused by, covered by, or resolved through that recall.
⚠️ 1 crash report 🩹 2 injury report entries
#5 Problem Area 10.5% of complaints

Engine & Cooling

6 owner complaints submitted to NHTSA ODI
🔥 1 fire report
Domain Share Note: Share percentage represents the proportion of unique complaint filings referencing each vehicle system. Because single complaints may cite multiple systems (such as engine and electrical simultaneously), domain percentages represent individual category incidence and may sum to over 100%.

Recent NHTSA Owner Reports for 2020 Mercedes-Benz GLB

Representative defect filings submitted by owners to the NHTSA Office of Defects Investigation

Engine & Cooling NHTSA ODI ID: #11757113
Filed: 08/15/2026

"Complete engine failure mid driving on highway. NO engine light prior to complete engine failure. Vehicle has been towed to two different Mercedes Benz auto dealerships. Both service directors concur that this should not have occurred with zero warning and low mileage of 64,856 with an impeccable..."

Incident Date: 07/03/2026 • Raw NHTSA Component: ELECTRICAL SYSTEM,ENGINE
Powertrain & Transmission NHTSA ODI ID: #11744345
Filed: 06/15/2026

"EXTENDED WARRENTY INFORMATION MERCEDEZ BENZ HAS ISSUED WARRENTY TO THAT APPLIE TO CONDISTIONS AS LISTED ABOVE (EXHAUST VALVE, CYLINER HEAD ) BACK 08/04/2023 THE CAR HAS IN MERCEDEZ BENZ AND HAVE FAILED TO PICK ON THE EXTENDED WARRRENTY REPAIRS AND WE NOW FIND OUT THIS CASED MORE DAMAGE TO THE..."

Incident Date: 06/02/2026 • Raw NHTSA Component: SUSPENSION,POWER TRAIN,FUEL/PROPULSION SYSTEM
Air Bags & Restraints NHTSA ODI ID: #11735064
Filed: 05/01/2026

"I have a passenger malfunction with airbags warning coming. I also just experienced getting gas. My milage counted down to zero which it never has before and my engine light came on. I went and got gas 3 times spending around $70 and my gas mileage still says 0 and my engine light is on."

Incident Date: 04/30/2026 • Raw NHTSA Component: AIR BAGS,ENGINE,FUEL/PROPULSION SYSTEM
Air Bags & Restraints NHTSA ODI ID: #11734342
Filed: 04/28/2026

"my car has only 24533 miles and Air bag malfunction message is showing up"

Incident Date: 04/27/2026 • Raw NHTSA Component: AIR BAGS
Fuel & Propulsion System NHTSA ODI ID: #11726066
Filed: 03/21/2026

"Diagnostics performed and found electrical/component fault and possible wire damage to fuel pump. NECC to drain tank and inspect replace fule pump if necc. Oringally took one week prior and diagnostics led to the possiblility that the cylinder head was malfunctioning, which was a manufacturing..."

Incident Date: 03/21/2026 • Raw NHTSA Component: ENGINE,FUEL/PROPULSION SYSTEM
Consumer Narrative Notice: Excerpts are sanitized text descriptions submitted by vehicle owners to the federal ODI database. They reflect the reporting consumer's observations at the time of filing and have not been independently confirmed by vehicle manufacturers or government investigators.

Complaint History for Mercedes-Benz GLB

Reported defect complaint volume across sibling model years (2020–2026)

Model Year NHTSA Complaints Crash Reports Safety Recalls Detailed Report
2020 Mercedes-Benz GLB Current Page 57 2 20 Current
2021 Mercedes-Benz GLB 7 0 12 View 2021 Problems →
2022 Mercedes-Benz GLB 13 2 1 View 2022 Problems →
2023 Mercedes-Benz GLB 12 0 1 View 2023 Problems →
2024 Mercedes-Benz GLB 0 0 2 View 2024 Problems →
2025 Mercedes-Benz GLB 0 0 2 View 2025 Problems →
2026 Mercedes-Benz GLB 1 0 1 View 2026 Problems →
Comparative Disclaimer: Complaint totals are unadjusted historical counts and are not normalized for vehicles sold, active fleet size, or total road mileage. Newer model years naturally have had less calendar exposure time to accumulate owner filings.

Detailed NHTSA Component Breakdown for 2020 Mercedes-Benz GLB

Complete distribution of consumer defect reports across all 26 granular NHTSA system and subsystem classifications

Vehicle Component / System Total Complaints Crash Reports Fire Reports Reported Injury Entries Reported Fatality Entries
Structure & Body NHTSA category: STRUCTURE 13 0 0 0 0
Other / Uncategorized NHTSA category: UNKNOWN OR OTHER 8 0 0 1 0
Air Bags NHTSA category: AIR BAGS 4 0 0 0 0
Engine NHTSA category: ENGINE 3 0 0 0 0
Fuel System NHTSA category: FUEL SYSTEM, GASOLINE 3 0 0 0 0
Electrical System NHTSA category: ELECTRICAL SYSTEM 2 0 0 0 0
ELECTRICAL SYSTEM,ENGINE 2 0 0 0 0
ELECTRICAL SYSTEM,UNKNOWN OR OTHER 2 0 0 0 0
STEERING,SUSPENSION 2 1 0 0 0
Suspension NHTSA category: SUSPENSION 2 0 0 0 0
AIR BAGS,ENGINE,FUEL/PROPULSION SYSTEM 1 0 0 0 0
AIR BAGS,SEAT BELTS 1 1 0 2 0
AIR BAGS,STRUCTURE,ELECTRONIC STABILITY CONTROL (ESC) 1 0 0 0 0
Back Over Prevention / Camera NHTSA category: BACK OVER PREVENTION 1 0 0 0 0
ELECTRICAL SYSTEM,BACK OVER PREVENTION 1 0 0 0 0
ELECTRICAL SYSTEM,ENGINE,FUEL/PROPULSION SYSTEM 1 0 0 0 0
ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL 1 0 0 0 0
ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL,LANE DEPARTURE 1 0 0 0 0
ENGINE,FUEL/PROPULSION SYSTEM 1 0 0 0 0
POWER TRAIN,VEHICLE SPEED CONTROL 1 0 0 0 0
SERVICE BRAKES, HYDRAULIC,EQUIPMENT 1 0 0 0 0
STEERING,SUSPENSION,WHEELS 1 0 0 0 0
SUSPENSION,POWER TRAIN,FUEL/PROPULSION SYSTEM 1 0 0 0 0
UNKNOWN OR OTHER,ENGINE 1 0 1 0 0
UNKNOWN OR OTHER,SERVICE BRAKES 1 0 0 0 0
Visibility / Glass NHTSA category: VISIBILITY 1 0 0 0 0
Data Attribution & Reporting Methodology: Complaints are unverified voluntary submissions to the NHTSA Office of Defects Investigation (ODI). Because multiple vehicle components can be cited within a single owner complaint submission, component-level rollups may sum to more than the unique complaint count (57). Injury and fatality entries in the detailed table reflect raw values entered by reporting consumers across individual submissions; they are not deduplicated casualty statistics and may include duplicate or unverified entries. Complaint volume is not normalized for sales volume or vehicle mileage and does not represent an audited component failure rate.

Related Official Reports for 2020 Mercedes-Benz GLB

Cross-reference safety recalls, crash test safety ratings, and EPA fuel economy for this model year

Official US Government Data Provenance

The complaint records on this page are retrieved directly from the NHTSA Office of Defects Investigation (ODI) public database.

Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.