Buick topped every other mainstream automaker in long-term reliability for a second straight year, recording 160 problems per 100 vehicles in J.D. Power’s 2026 U.S. Vehicle Dependability Study. The result, drawn from surveys of 33,268 owners of 2023 model-year vehicles, cements the General Motors brand’s position at a time when used-car shoppers are paying close attention to three-year ownership track records. Yet the 2026 score is notably higher than the 143 PP100 Buick posted in the prior year’s study, raising questions about whether the brand’s quality edge is narrowing even as it keeps the top spot.
Why Buick’s back-to-back mass-market win carries real weight
Repeat wins in the J.D. Power dependability rankings do more than generate press releases. They feed directly into how dealers price certified pre-owned inventory and how lenders assess residual values. A brand that holds the lowest problem rate among mass-market competitors for two consecutive cycles gives buyers a concrete data point: vehicles from that lineup are statistically less likely to need unscheduled repairs during the first three years of ownership. For anyone shopping a 2023-model-year Buick Encore GX or Envision on the used market right now, the ranking signals lower expected maintenance costs relative to rivals.
The hypothesis that brands sustaining sub-170 PP100 scores over multiple years will see measurable gains in certified pre-owned transaction volume is plausible but unproven by the available data. J.D. Power’s press materials do not track CPO sales figures, and no automaker release in the reporting block ties dependability rankings to specific transaction-volume changes. The logical chain is sound: better dependability scores should, in theory, boost buyer confidence and dealer willingness to certify used units. But confirming the link would require sales data that neither J.D. Power nor Buick has published in these releases.
For dealers, the benefit is more immediate. A recognizable third-party metric gives store managers cover to hold firmer on pricing, particularly on late-model SUVs that already command strong demand. Finance managers, meanwhile, can point to back-to-back wins when explaining residual assumptions to customers considering leases or extended terms on used vehicles. Even if shoppers do not know the exact PP100 figure, the idea that a brand leads its mass-market peers in dependability for multiple years can shape perceptions at the point of sale.
How J.D. Power measured Buick’s 160 PP100 score
The 2026 U.S. Vehicle Dependability Study surveyed 33,268 original owners of 2023 model-year vehicles across 184 distinct problem areas grouped into nine vehicle categories. Buick’s 160 PP100 placed it at the top of the mass-market segment, meaning original owners reported fewer issues per vehicle than any non-luxury competitor. The study captures problems experienced after roughly three years of real-world driving, covering everything from infotainment glitches to powertrain failures and build-quality concerns.
A year earlier, Buick had scored even better. The 2025 edition of the same study placed Buick at 143 PP100 among 34,175 owners of 2022 model-year vehicles, with fielding conducted from August through November 2024. That 17-point increase from 143 to 160 is worth watching. It means 2023-model Buicks generated roughly 12 percent more reported problems per vehicle than their 2022-model predecessors did at the same ownership milestone. Buick still won the mass-market crown, but the gap between its score and the rest of the field may have tightened.
Lexus ranked first overall in the 2025 study, a reminder that premium brands often post lower absolute PP100 figures than even the best mass-market performers. The 2026 study’s overall leader has not been specified in the materials reviewed here, so a direct premium-versus-mainstream comparison for the latest cycle is not possible with the available data. That limitation underscores how carefully shoppers and analysts need to read the rankings: a “mass-market leader” can still trail luxury competitors in absolute problem counts.
Segment-level awards also shape how individual models get marketed. The Subaru Crosstrek earned the most dependable small SUV title in the 2026 study, illustrating how automakers use J.D. Power results to bolster specific nameplates in advertising. That kind of segment-level recognition can influence purchase decisions at the dealership level, where a salesperson can point to a third-party award rather than relying solely on brand reputation.
How automakers turn scores into marketing and messaging
Buick has a clear incentive to translate its mass-market win into messaging that resonates beyond the industry. That typically means citing the study in national advertising, dealer showroom materials, and digital campaigns aimed at used-vehicle shoppers. The fact that the underlying findings are distributed through wire services and media portals such as PR Newswire helps ensure that both trade publications and local outlets pick up the story, amplifying the impact of the rankings.
Automakers that receive model-level awards often go a step further, creating special web landing pages and social media content around their wins. While the J.D. Power methodology is relatively technical, the way it is presented to consumers is not: phrases like “most dependable” or “highest ranked in vehicle dependability among mass-market brands” simplify the statistics into a single headline takeaway. Whether that translation accurately reflects the nuance of PP100 changes from year to year is rarely discussed in consumer-facing materials.
On the back end, communications teams and analysts rely on access-controlled dashboards and release tools, including login-based systems such as PRN’s automation portal, to coordinate timing and distribution. That infrastructure is invisible to shoppers, but it plays a role in how quickly a brand can respond when new rankings are published and how consistently dealers receive updated talking points.
Gaps in the data and what to watch next
Several pieces of the picture are missing from the institutional releases. Neither the 2025 nor the 2026 J.D. Power press materials break out PP100 scores by individual Buick model, so there is no way to tell whether one nameplate dragged the brand average up or whether the increase was spread evenly across the lineup. Category-level problem breakdowns, which would reveal whether infotainment, exterior quality, or drivetrain issues drove the year-over-year rise, are also absent from the published summaries.
The 17-point jump from 143 to 160 PP100 does not necessarily signal a quality crisis. Model-year mix changes, new technology introductions, and even shifts in survey respondent expectations can all nudge scores higher without reflecting a fundamental decline in engineering robustness. A brand that adds complex driver-assistance features or over-the-air update capabilities, for example, may see more reported issues simply because there are more systems that can generate complaints.
Still, the direction of travel matters. If Buick’s PP100 figure continues to climb in future cycles while rivals stabilize or improve, its relative advantage could erode quickly. Analysts and fleet buyers will be watching not just whether Buick remains the top mass-market brand, but whether its absolute problem count returns closer to the 2025 level or drifts further away from it. Sustained movement above 170 PP100 would be harder to dismiss as statistical noise or one-off model-year variability.
For consumers, the most practical takeaway is comparative rather than absolute. A shopper choosing among mainstream brands can reasonably treat Buick’s back-to-back wins as evidence that, on average, its vehicles generate fewer headaches in the first three years than many competitors. At the same time, the uptick from 2025 to 2026 is a reminder to look beyond brand-level badges and examine individual model histories, recall records, and owner reviews.
Ultimately, J.D. Power’s dependability rankings function as one input in a broader evaluation process. They capture a snapshot of how owners experience their vehicles over a defined period, but they do not predict every failure mode or capture long-term durability beyond three years. Buick’s current position at the top of the mass-market table is significant, particularly for used-vehicle shoppers weighing maintenance risk. Whether that lead remains as convincing in future studies will depend on how effectively the brand addresses whatever underlying issues contributed to its higher PP100 score in 2026-and on how aggressively its rivals close the gap.
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*This article was researched with the help of AI, with human editors creating the final content.
