Comparison

MERCEDES-BENZ GLS450 vs TOYOTA PRIUS PLUG-IN HYBRID

Side-by-side comparison of the MERCEDES-BENZ GLS450 and TOYOTA PRIUS PLUG-IN HYBRID drawn from the NHTSA consumer-complaint database, defect investigations, recall history, and NCAP crash-test ratings.

According to the National Highway Traffic Safety Administration (NHTSA), more than 2,000,000 consumer complaints have been filed against U.S. vehicles (2,054,142 as of August 2026). This is a head-to-head safety comparison between the MERCEDES-BENZ GLS450 (2017–2021) and the TOYOTA PRIUS PLUG-IN HYBRID (2010–2026), drawn from that federal complaint and recall record; see our methodology for how the figures are compiled.

The MERCEDES-BENZ GLS450 (2017–2021, 4 model years) carries 100 NHTSA consumer complaints and 19 safety recalls, while the TOYOTA PRIUS PLUG-IN HYBRID (2010–2026, 9 model years) carries 100 complaints and 3 recalls. Severity indicators for the pair split as follows: 5 vs 20 crashes, 16 vs 1 fires, and 0 vs 0 reported fatalities.

Raw complaint counts favor whichever nameplate has fewer vehicles on the road, so the cleaner lens is components: which specific part families concentrate each model's filings? For the MERCEDES-BENZ GLS450, the leading complaint category is electrical system (21 filings), followed by unknown or other and engine. For the TOYOTA PRIUS PLUG-IN HYBRID, it is service brakes (28), ahead of unknown or other and electrical system. When the two vehicles cluster around the same component, the problem is likely a shared supplier or a shared federal standard under stress; when they diverge, each nameplate has its own defect signature independent of the other.

Average NCAP crash-test scores are not uniformly available for both nameplates in this dataset, which typically means one or both pre-date the 2011 rating methodology refresh. Use the side-by-side table below as your scorecard, but do not treat it as a verdict. Recall counts tell you how many defects the manufacturer has already been compelled to remedy; complaint counts tell you what owners are still flagging today; and safety ratings tell you how the vehicle performs in standardized barrier tests, three different lenses on the same underlying question. The "also compare" links at the bottom of this page let you triangulate against neighboring nameplates in each model's competitive set.

MERCEDES-BENZ GLS450 vs TOYOTA PRIUS PLUG-IN HYBRID - NHTSA complaint, recall, and safety rating comparison
MERCEDES-BENZ GLS450 Metric TOYOTA PRIUS PLUG-IN HYBRID
N/A Avg Safety Rating 4/5
100 Total Complaints 100
19 Total Recalls 3
5 Crashes Reported 20
16 Fires Reported 1
7 Injuries Reported 6
0 Deaths Reported 0
4 years Years on Market 9 years

Top Complaint Categories

ELECTRICAL SYSTEM
21
10
UNKNOWN OR OTHER
16
12
ENGINE
11
6
EXTERIOR LIGHTING
6
0
FUEL/PROPULSION SYSTEM
5
0
SERVICE BRAKES
0
28
VEHICLE SPEED CONTROL
0
5
MERCEDES-BENZ GLS450 TOYOTA PRIUS PLUG-IN HYBRID

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Frequently Asked Questions

Which is safer, MERCEDES-BENZ GLS450 or TOYOTA PRIUS PLUG-IN HYBRID?
MERCEDES-BENZ GLS450 has 100 total NHTSA complaints with 5 crashes, while TOYOTA PRIUS PLUG-IN HYBRID has 100 complaints with 20 crashes. Review individual model years for specific safety ratings.
How many recalls does MERCEDES-BENZ GLS450 have compared to TOYOTA PRIUS PLUG-IN HYBRID?
MERCEDES-BENZ GLS450 has 19 recalls across 4 model years, while TOYOTA PRIUS PLUG-IN HYBRID has 3 recalls across 9 model years.
What are the most common problems with MERCEDES-BENZ GLS450?
The most commonly reported issues for MERCEDES-BENZ GLS450 are: ELECTRICAL SYSTEM (21 complaints), UNKNOWN OR OTHER (16 complaints), ENGINE (11 complaints), EXTERIOR LIGHTING (6 complaints), FUEL/PROPULSION SYSTEM (5 complaints).
What are the most common problems with TOYOTA PRIUS PLUG-IN HYBRID?
The most commonly reported issues for TOYOTA PRIUS PLUG-IN HYBRID are: SERVICE BRAKES (28 complaints), UNKNOWN OR OTHER (12 complaints), ELECTRICAL SYSTEM (10 complaints), ENGINE (6 complaints), VEHICLE SPEED CONTROL (5 complaints).

Source: National Highway Traffic Safety Administration (NHTSA) complaints and recalls data