Chevrolet Suburban vs Subaru Ascent
This page compares the Chevrolet Suburban and the Subaru Ascent across the 8 model years both appear in our data (2019–2026). Both are classed as SUV on this site. On its most efficient configuration the Subaru Ascent averages about 27 mpg (UK) against 26 mpg for the Chevrolet Suburban. NHTSA lists fewer recall campaigns per model year for the Chevrolet Suburban (4.0 against 4.5), though campaign counts depend on how long each model has been on sale and how many variants share a campaign.
Head-to-Head: 2019–2026
| Measure | Chevrolet Suburban | Subaru Ascent |
|---|---|---|
| Average best-configuration economy (mpg, UK) | 26 | 27 |
| Average CO₂ (g/km) | 284 | 244 |
| Average estimated annual fuel cost (US EPA) | $4,038 | $2,975 |
| Model years rated 5★ overall by NHTSA | 2 of 8 | 8 of 8 |
| Average recall campaigns per model year | 4.0 | 4.5 |
| Average owner complaints per model year | 111 | 230 |
| Engine options across these years | 3 | 1 |
Year by Year
| Year | Chevrolet Suburban MPG (UK) | NHTSA | Recalls | Complaints | Subaru Ascent MPG (UK) | NHTSA | Recalls | Complaints |
|---|---|---|---|---|---|---|---|---|
| 2019 | 22 | 4★ | 0 | 78 | 28 | 5★ | 9 | 441 |
| 2020 | 22 | 4★ | 0 | 44 | 28 | 5★ | 5 | 322 |
| 2021 | 28 | 4★ | 12 | 199 | 28 | 5★ | 2 | 102 |
| 2022 | 28 | 4★ | 4 | 124 | 28 | 5★ | 2 | 55 |
| 2023 | 28 | 4★ | 4 | 143 | 26 | 5★ | 4 | 45 |
| 2024 | 28 | 4★ | 1 | 42 | 26 | 5★ | 1 | 50 |
| 2025 | 28 | 5★ | 0 | 30 | 26 | 5★ | 1 | 15 |
| 2026 | 28 | 5★ | 0 | 16 | 26 | 5★ | 0 | 3 |
MPG is each model year's most efficient configuration (US EPA, converted to UK mpg). Recalls and complaints are NHTSA counts as of 6 October 2026; complaints are unverified owner reports and rise with sales volume. See each model's full history: Chevrolet Suburban · Subaru Ascent.
Frequently Asked Questions
Which is more fuel-efficient, the Chevrolet Suburban or the Subaru Ascent?
On its most efficient configuration the Subaru Ascent averages about 27 mpg (UK) against 26 mpg for the Chevrolet Suburban. Figures are the US EPA combined result converted to UK mpg, averaged over the shared model years; individual engines and years differ, so check the year pages for the exact car.
Which has better NHTSA safety ratings?
The Chevrolet Suburban has 2 of 8 model years rated 5★ overall in these years and the Subaru Ascent has 8 of 8. NHTSA ratings are only comparable between vehicles of similar size and weight, and the test criteria have changed over time.
Which has more recalls and owner complaints?
Per model year, the Chevrolet Suburban averages 4.0 recall campaigns and 111 owner complaints; the Subaru Ascent averages 4.5 and 230. Complaint counts are unverified owner reports and rise with sales volume, so use them as a pointer for what to inspect, not as a reliability ranking.
Where do these comparison figures come from?
Fuel economy, CO₂ and interior volume come from the US EPA's fueleconomy.gov data; ratings, recalls and complaints come from NHTSA. Only model years where both cars have data are compared.
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