There is no reliable, apples-to-apples ranking of every Mercedes-Benz SUV. The strongest positive named result in the available evidence is the 2022 GLC, which won J.D. Power’s 2025 Compact Premium SUV dependability award. But Consumer Reports gives negative reliability signals for some other model years, including the 2023 GLC, 2020 GLE and GLS in its 2026 brand report. These results are not directly comparable, so the fairest ranking is by evidence tier—not a definitive first-to-last list.
Mercedes SUV reliability: the evidence-based ranking
The findings below are primarily U.S.-market, model-year-specific owner-survey results. A segment award, a comparison with same-year vehicles and a brand-level category signal measure different things. They can help identify years or models worth closer scrutiny, but they do not establish which Mercedes SUV is most reliable across all generations—or predict the condition of a particular used vehicle.
| Evidence tier | Model and year | What the source reports | What the finding does not establish |
|---|---|---|---|
| Best-supported positive signal | 2022 Mercedes-Benz GLC | J.D. Power named it the Compact Premium SUV winner in its 2025 Dependability Awards. | It is a segment award for one model year, not proof that every GLC year—or the GLC across all years—is the most reliable Mercedes SUV. |
| Mixed, year-specific evidence | 2023 Mercedes-Benz GLC | Consumer Reports’ surfaced model-page summary describes it as less reliable than other 2023 vehicles. | This is not a direct comparison with the 2020 GLE or other Mercedes SUVs. |
| Mixed, year-specific evidence | 2020 Mercedes-Benz GLE | Consumer Reports’ surfaced model-page summary describes it as much less reliable than other 2020 vehicles. | This same-year comparison does not rank the GLE against the GLC or other Mercedes models. |
| Evidence is insufficient for a model-line ranking | GLA; GLB | Consumer Reports’ 2025 GLA page describes subscriber-survey data and notes recall notices covering certain GLA and GLB vehicles. | The cited page does not establish a reliability ranking for every GLA or GLB year. The recall notices apply to certain vehicles, not necessarily every vehicle in either line. |
| Caution flag | GLS, in Consumer Reports’ 2026 category reporting | Consumer Reports said the GLS was at the bottom of its category for reliability in its 2026 Automotive Brand Report Card release. | This is not a numeric, model-year-by-model-year comparison with other Mercedes SUVs, and it should not be generalized to every GLS generation. |
| Not ranked by the evidence cited here | G-Class, EQB, EQE SUV, EQS SUV, GLK, M-Class/ML, and earlier GL/GLS versions | The cited sources do not provide comparable findings here for these nameplates and generations. | No position in a reliability league table can be supported from the available findings. |
“Not ranked” does not mean unreliable or reliable; it means there is not a comparable result here on which to base a placement. The evidence also does not support assigning numeric scores or ordering all these SUVs from best to worst.
Why the 2022 GLC award is the clearest positive result
J.D. Power defines vehicle dependability in terms of problems owners experienced during the preceding 12 months with their three-year-old vehicles; fewer reported problems correspond to a higher score. Its 2025 awards page says its ratings draw on more than 80,000 verified owners annually. Within that framework, the 2022 GLC’s Compact Premium SUV award is a meaningful positive signal for that model year.
Recommended Free Tools
#1 Best Overall
- Chilton Books
- CHI48300
- Mercedes-Benz Repair Manuals
The award is not a guarantee that an individual 2022 GLC will be trouble-free, nor does it establish long-term durability over a vehicle’s full life. It also cannot cancel out a different result for a different model year: Consumer Reports’ surfaced summary for the 2023 GLC is less favorable, using a separate comparison and methodology.
How to read the surveys without mixing their results
J.D. Power measures reported problems after three years
J.D. Power’s 2026 U.S. Vehicle Dependability Study covers 184 specific problem areas across nine categories. It uses responses from 33,268 original owners of 2023 model-year vehicles after three years of ownership; fieldwork ran from December 2024 through November 2025. Those details describe the 2026 study overall, not a separate Mercedes SUV ranking in the findings above.
As J.D. Power director of auto benchmarking Jason Norton said in the 2026 study release, “As owners hold onto their vehicles longer, the long-term ownership experience matters more than ever.” That observation is useful context, but a three-year dependability study still captures a defined ownership window rather than every later year of a vehicle’s life.
Consumer Reports uses subscriber surveys and model-year histories
Consumer Reports’ model-page summaries draw on subscriber-survey information and reliability histories by model year. Its surfaced material identifies trouble spots such as engines, transmissions, brakes, power equipment and electrical systems. Its 2026 release says its annual survey gathered information on about 380,000 vehicles from model years 2000 through 2025 and early 2026. That overall survey figure is not the sample size for any one Mercedes model in the findings above.
Do not compare a Consumer Reports description such as “less reliable than other same-year vehicles” directly with J.D. Power’s dependability award as if they were scores on the same scale. They use different evidence and comparison frames, and no numeric model scores are established here.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What this means when choosing a used Mercedes SUV
Start with the exact year and generation
Do not shop by badge alone. The cited evidence itself shows why: the 2022 GLC has a positive award, while the 2023 GLC receives a negative same-year comparison from another source. Check the specific model year and generation you are considering, and do not assume that a result for one year applies to a redesign, a later model or a different powertrain.
Rank #4
- Used Book in Good Condition
Check the individual vehicle, not just its model’s reputation
Model-level surveys describe patterns across groups of owners; they cannot tell you whether a particular VIN was maintained well, repaired correctly or has an unresolved fault. Review the vehicle’s service and repair records, check its recall status by VIN, and arrange an independent pre-purchase inspection. Give the inspector the exact model year and powertrain, and ask them to assess the vehicle’s condition rather than relying on a model-wide reputation.
Treat a recall notice as vehicle-specific
Consumer Reports’ 2025 GLA page notes notices covering certain GLA and GLB vehicles and directs readers to a recall report for vehicle-specific details. A notice is a reason to check the VIN and confirm whether the remedy applies and has been completed—not evidence that every GLA or GLB has the same issue.
Which Mercedes SUV should you consider most reliable?
If you need one evidence-backed positive pick, the 2022 GLC is the strongest candidate in the findings available here because it received J.D. Power’s 2025 segment award. That is a narrow conclusion, not a declaration that it outranks every Mercedes SUV in every year. The 2023 GLC, 2020 GLE and GLS category signal all call for model-year-specific caution, while the evidence cited here is too limited to rank the other nameplates responsibly.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
