2021 Subaru Ascent
The 2021 Subaru Ascent is sold in the U.S. as a gas large SUV with 2 EPA-rated configurations. The most efficient version, the Ascent, is EPA-rated at 23 mpg combined. NHTSA lists 2 recall campaigns for this model year, 1 rated critical, which gives it a Safety Signal grade of B. Owners have filed 103 complaints, most often about the power train. NHTSA crash-tested it at 5 stars overall.

Specs & fuel economy
Source: EPA fueleconomy.gov| Configuration | Powertrain | Drive | Engine / motor | City | Hwy | Comb | Annual fuel* |
|---|---|---|---|---|---|---|---|
| Ascent | Gas | AWD | 2.4L 4-cyl turbo | 21 | 27 | 23 | $2,900 |
| Ascent Limited/Touring | Gas | AWD | 2.4L 4-cyl turbo | 20 | 26 | 22 | $3,050 |
*EPA estimate at 15,000 miles/year at EPA reference fuel and electricity prices. fueleconomy.gov record ids: 42567, 42568.
Emissions & certification
Source: EPA emission certificates| Configuration | Smog rating | Emission standard | Where it can be sold new | SmartWay |
|---|---|---|---|---|
| Ascent, Ascent Limited/Touring | 3 / 10 | California LEV-III ULEV125 / Federal Tier 3 Bin 125 | All 50 states (federal, all altitudes); California and states following California standards | — |
Certified for all fifty states, so it can be registered new anywhere in the U.S.
The smog rating scores tailpipe pollutants other than greenhouse gases, 1 (worst) to 10 (best), and is comparable only within a model year. The standard is the federal bin or California tier the configuration was certified to. Both come from the EPA certificate behind the window sticker.
Specifications filed with NHTSA
Source: NHTSA vPICDimensions Exterior
| Body style | Sport Utility Vehicle [SUV]/Multipurpose Vehicle [MPV] |
| GVWR class | Class 1D: 5,001 - 6,000 lb (2,268 - 2,722 kg) |
Engine Basics
| Cylinders | 4 |
| Displacement | 2.4 L |
Engine Output
| Horsepower | 260 hp |
Fuel Economy
| Fuel | Gasoline |
Seating
| Seat rows | 3 |
Driver assistance
Standard: Adaptive cruise control, Anti-lock brakes, Automatic emergency braking, Backup camera, Blind-spot monitoring, Electronic stability control, Forward collision warning, Lane departure warning, Lane keeping assist
Filed by the manufacturer with NHTSA under the federal vehicle-identification rule and decoded from the VIN pattern — not a manufacturer press kit, so it describes the configurations we could identify rather than every trim (seen: Limited 7+ES+KA+M/R+NAVI+H/K, Limited 8+ES+KA, Limited 8+ES+KA+M/R+NAVI+H/K, Premium 7+ES+KA). Figures for the trim you are looking at may differ.
Dimensions & weight
Source: Transport Canada| Length | 196.9 in |
| Width (body, without mirrors) | 71.7 in |
| Height | 76.0 in |
| Wheelbase | 113.8 in |
| Track, front | 64.6 in |
| Track, rear | 64.2 in |
| Curb weight | 4,420–4,570 lb |
| Weight distribution, front/rear | 54/46 |
Measured by Transport Canada for its Canadian Vehicle Specifications database, which covers the North American versions of each model — here 3 configurations: Convenience 4-door SUV, Limited / Premier 4-door SUV, Touring 4-door SUV. Where a range is shown, those versions differ. Width is the body without mirrors, which is why it can read narrower than a brochure figure. Before we used it we checked it against the US manufacturer press kits we hold (27 Sep 2026): wheelbase agreed within 1% on every vehicle we could compare, length on 98%, and the curb weight fell inside the manufacturer's range on 96%. Source dataset. Contains information licensed under the Open Government Licence – Canada. Licence.
Factory warranty running out?
The 2021 Subaru Ascent is in the years where transmission, electronics and drivetrain repairs land on the owner. What an extended plan does and does not cover is worth reading before a dealer quotes you one.
What to check before you buy →Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
Recalls (2)
Source: NHTSA recall databaseElectrical System
WRL-22These are vehicle campaigns — the ones the automaker filed against this model. NHTSA also records equipment recalls, filed by a parts maker against a component (a tyre, a child seat, an aftermarket part), and those are not listed here or counted above. nhtsa.gov/recalls shows both for a VIN.
Whether any of this applies to one specific Ascent
A campaign covers a build range, not a model year, so two identical-looking cars from 2021 can differ. Both of these check a VIN against the manufacturer’s own list, free, in about ten seconds. Subaru publishes its own lookup because federal rule 49 CFR 573.15 requires it to, and to keep it current to within seven days.
Hear about a recall before the letter does
The manufacturer’s letter is the last step of a recall: it has up to 60 days after filing to mail owners, at the address on the registration. We email you the day NHTSA posts a recall on the 2021 Subaru Ascent, with what to do next. Nothing else, ever — no newsletter, no marketing, one-click unsubscribe in every message.
Parts & accessories for the 2021 Subaru Ascent
Search by fitment on eBay Motors — OEM take-offs, aftermarket, and the trim pieces dealers no longer stock. The listing and the price are the seller's.
Find parts for this Ascent →Owner complaints
Source: NHTSA complaint database3 involved a crash · 1 a fire · 3 injuries · 0 deaths reported
14 per 10,000 built · Subaru reported 75,065 Ascent built (its Early Warning production report to NHTSA)
Filed per year: 2021: 26 · 2022: 22 · 2023: 14 · 2024: 15 · 2025: 12 · 2026: 14
Most-cited components
In owners' own words
Filed with NHTSA by the people who own these cars, one per problem area. Quoted as written, with anything identifying removed.
The car constantly over-corrects when it tries to keep me centered in a lane on the highway. It always over-corrects to the left shoving me to the left into the adjoining lane, and potentially side swiping vehicles in the adjoining lane. It never over-corrects to the right. I reported this to the dealer and I was told that this is normal
At 1 month old with 1,661 miles - the driver's side window started showing a cracked line that began to grow throughout the course of driving on a Saturday afternoon
When operating the 2021 Ascent, I experience intermittent problems at various shift-points in the CVT and at various RPMs. The transmission seems to shudder and slip between shift-points, and the shuddering sensation is so severe that it transfers up through the steering column and the steering wheel shakes.
On several occasions while using the lane centering feature, vehicle has taken a sudden violent move to the left into the on coming lane. No warning lights illuminated. Problem hasn’t been replicated by dealer
After leaving liftgate open for a while, battery was dead. Learned from website that this was known issue for Subaru’s with automated liftgate. As i was camping with no cell signal, it was super difficult to get help and this could lead to the really big issue.
Lane assist with cruise control over corrects. On multiple occasions while on the freeway using cruise control the lane assist pulled me into the other lane into other vehicles. I have almost hit two other vehicles. The pull is too strong and crosses lanes. I have to keep it off. Forward collision does not engage
Complaint counts are raw owner reports to NHTSA, not verified defects, and scale with how many were sold. Use them to spot patterns, not to rank.
Reported by Subaru itself: 40 death-or-injury claims on this model year in its quarterly Early Warning reports to NHTSA (49 CFR 579.21): 57 injured, as claimed, not verified — about 53 per 100,000 built. Every Ascent model year, by year and system → Dated and by system, they are exhibit F of the defect dossier.
When owners reported it
miles, typically
Half the 20 owner reports with an odometer reading on file fall between 2,000 and 6,000 miles. That is when problems get reported, which is not the same as when they start — and not a failure rate, because nobody knows how many of these cars never had a problem at all.
Odometer readings as filed by owners with NHTSA. Readings under 100 or over 400,000 miles are dropped as data entry rather than history, and a component needs at least 12 readings before a median is shown for it.
Crash ratings
Source: NHTSA NCAP| Configuration | Overall | Frontal | Side | Rollover | Rollover risk |
|---|---|---|---|---|---|
| SUV AWD | ★★★★★ | ★★★★★ | ★★★★★ | ★★★★☆ | 17% |
NHTSA New Car Assessment Program. Standard driver-assist: forward collision warning, lane departure warning, automatic emergency braking.
Driver-assist crash reports (1)
Source: NHTSA Standing General Order 2021-011 severity unknown
Feb 2025 to Feb 2025 · 1 with an air bag deployment · 1 towed
What was engaged, and what was hit
System named: not named in the filings
Crash partner: Other 1
Filed by: Subaru of America, Inc.
| Incident | System | Struck | Injury alleged | State | Speed | Report |
|---|---|---|---|---|---|---|
| Feb 2025 | Level 2 | Other | unknown | OH | 69 mph | 1243-10331 |
A report under the General Order is a notice the manufacturer or operator must file within days of hearing of a crash in which a Level 2 driver-assist or automated-driving system was engaged within 30 seconds of impact. It is filed before anything is verified, and entities with telematics hear of far more crashes than entities that rely on complaints, so counts say as much about the reporting as about the car and are not comparable across makes. Nothing is normalised by fleet size. Every report on file, by make and year → · NHTSA’s page and files
Service bulletins & campaigns
Source: NHTSA manufacturer communications- 8 years or 150,000 miles, whichever comes first · Subaru bulletin 06-92-24RIn the interest of customer satisfaction, Subaru of America, Inc.
- 8 years or 150,000 miles, whichever comes first · Subaru bulletin 06-92-24This bulletin is in the interest of customer satisfaction, Subaru of America, Inc.
The term and the vehicles it covers are the manufacturer’s, as NHTSA’s summary of each filing states them; a dealer checks one particular car by its VIN. Every Subaru warranty extension (4) → · Every warranty extension on file, all makes →
Most often about: Electrical System, Equipment, Engine, Power Train, Unknown Or Other.
- 11037943 Other2026-10-05 · Electrical System
- This announcement provides information on a new software update for the Midtronics Dss and DCA machines.
- 09-141-26 Service bulletin2026-09-29 · Electrical System
- This Bulletin provides a diagnostic procedure for customer concerns about hesitation, reduced acceleration, or lack of power when driving uphill or under heavy engine load.
- 07-244-26 Service bulletin2026-09-29 · Electrical System
- This Bulletin provides a repair procedure for increased dark current and unintended battery discharge that occurs in a small number of unique cases.
- 11037942 Other2026-09-28 · Power Train
- This announcement provides information on an enhancement of the TechShare CVT diagnostic assitance application.
- 13-109-26 Service bulletin2026-09-18 · Unknown Or Other
- This bulletin provides paint code information for 2027 model year vehicles.
- 11037930 Other2026-09-15 · Unknown Or Other
- This announcement provides an update to all 2027 model year Subaru warranty coverages for wear items and adjustments.
- 15-322-25R Service bulletin2026-09-14 · Electrical System
- In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the New Car Limited Warranty coverage for the CP1 & Gen 3.1 Head Unit used in the listed models and model years to (8) eight years / 150,000 miles to cover certain qualifying repairs to the infotainment audio system. This is an revised version of the original bulletin.
- 15-304-22R Service bulletin2026-09-14 · Electrical System
- This bulletin has been developed to outline the steps for gathering basic but essential information during diagnosis of Infotainment concerns. This is an revised version of the original bulletin.
A service bulletin is the manufacturer telling its dealers how to diagnose or repair a known condition. It is not a recall, not a finding that the vehicle is defective, and the work is not automatically free — though a bulletin is often what a dealer works from when you describe a symptom, so quoting the document number can save a diagnosis. The count is every communication filed; the list shows the most recent, one entry per campaign, because a single campaign is usually filed as several documents on the same day. The summaries are NHTSA's; the full documents come from the manufacturer.
Diagnostic trouble codes on file
Source: NHTSA manufacturer communications and complaintsCodes documented against this model year in the federal record. A code appearing here does not mean this vehicle will set it — it means the code is part of this nameplate-year's documented history.
| Code | What it means | Most often filed under | Where it appears |
|---|---|---|---|
| B2A16 B2A16 on Subaru → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Electrical System · Battery → | 9 bulletins |
| B2255 B2255 on Subaru → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Electrical System · Battery → | 4 bulletins |
| B1610 | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Electrical System · Battery → | 2 bulletins |
| B2A20 | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Electrical System · Battery → | 2 bulletins |
| P0420 P0420 on Subaru → | The catalytic converter on bank 1 is not cleaning up the exhaust as well as it should. | Engine · Catalytic converter → | 2 bulletins |
| P2096 P2096 on Subaru → | After the catalyst, the mixture on bank 1 is reading lean. | Electrical System · Battery → | 2 bulletins |
| P2097 P2097 on Subaru → | After the catalyst, the mixture on bank 1 is reading rich. | Electrical System · Battery → | 2 bulletins |
Generic codes (the second character is 0 or 2) mean the same thing on every vehicle sold in the United States. Manufacturer-specific codes (1 or 3) mean whatever the automaker assigned, and no honest source can define them for you — which is why the ones here carry the evidence instead of a definition. A code is a link when enough separate federal documents name it across the catalogue to be worth a page of its own; the rest are listed here, where the vehicle is the context that makes them mean something.
Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
At the New York inspection station
Source: New York State DMVIn New York’s inspection lanes over the 12 months to Oct 10, 2026, the 2021 Subaru Ascent failed the emissions check on 1.7% of first inspections — close to the 1.9% for every 2021 model-year vehicle inspected; and the safety inspection on 1.4% (every 2021 vehicle: 1.5%).
failed emissions
2,806 initial inspections of 2,744 vehicles.
| Measure | The 2021 Ascent | Every 2021 vehicle | Behind it |
|---|---|---|---|
| Failed the emissions check | 1.7% | 1.9% | 2,798 |
| Failed the safety inspection | 1.4% | 1.5% | 2,806 |
| Air-bag warning lamp stayed lit | 0.11% | 0.19% | 2,806 |
| Miles driven a year | 12,077 | 10,343 | odometer at inspection |
| Average odometer | 63,383 | 54,681 | odometer at inspection |
New York’s emissions test on these model years is an on-board diagnostics check: it fails a car whose check-engine light is on or whose self-tests have not finished. First inspections only, so a car that failed and came back is counted once; private and special plates, not taxis, livery or commercial plates. A rate appears only where at least 200 inspections stand behind it. “Every 2021 vehicle” is every 2021 model-year car, SUV and pickup inspected in the same window, all makes. This is the state’s record of test results, not a reliability score by itself. Source: New York State Department of Motor Vehicles, Vehicle Inspections (data.ny.gov, Open NY terms).
Ascent by model year
all years, side by side →Common questions about the 2021 Ascent
Source: EPA, NHTSA and manufacturer press kitsDoes the 2021 Subaru Ascent have any recalls?
NHTSA has posted 2 recall campaigns for the 2021 Subaru Ascent, 1 of them rated critical. The most serious on file is 22V907000, covering Electrical System. 1 of them was filed with no repair available at the time — NHTSA's file records what the manufacturer had in hand on the filing date, not what exists today. There is an active park outside advisory — act on it before driving. Check your own VIN at nhtsa.gov/recalls; a recall applies to specific build ranges, not every car.
How safe is the 2021 Subaru Ascent?
NHTSA gave the 2021 Subaru Ascent 5 stars overall in its New Car Assessment Program tests — 5-star frontal crash, 5-star side crash, 4-star rollover. WhichTrim also grades it B (82/100) on its recall record, which is a different question from crash protection.
What is the fuel economy of the 2021 Subaru Ascent?
Across the 2 EPA-rated configurations of the 2021 Subaru Ascent, the best EPA combined figure is 23 mpg. Figures are the EPA's own, per configuration, and every one is listed above.
What are the dimensions of the 2021 Subaru Ascent?
Transport Canada measured it at 196.9 in long, 71.7 in wide (body, without mirrors), 76.0 in tall, on a 113.8 in wheelbase. Curb weight: 4,420–4,570 lb depending on configuration. Those are its measurements of the North American versions; every figure is in the table above.
What do owners complain about on the 2021 Subaru Ascent?
Owners have filed 103 complaints with NHTSA about the 2021 Subaru Ascent, most often about power train, visibility/wiper, electrical system. Of those, 3 involved a crash, 1 a fire, 3 reported injuries. Complaints are unverified owner reports, so treat the pattern as a signal and the individual report as an anecdote.
How clean is the 2021 Subaru Ascent?
The EPA smog rating for the 2021 Subaru Ascent is 3 out of 10. That score covers tailpipe pollutants other than greenhouse gases, and it only compares vehicles within the same model year. It is certified for all fifty states, so it can be registered new anywhere in the U.S. Its configurations were certified to different standards — California LEV-III ULEV125, Federal Tier 3 Bin 125 — which the table above lists per configuration.
Are there service bulletins for the 2021 Subaru Ascent?
The manufacturer has filed 381 service bulletins and related communications with NHTSA for the 2021 Subaru Ascent, most often covering electrical system, equipment, engine. The most recent is dated 2026-10-05. A bulletin is not a recall: it is the repair procedure a manufacturer sends its dealers for a condition it knows about, and the work is not automatically paid for. It is still worth knowing — if the symptom matches, quoting the bulletin number at the service desk can save a diagnosis. The document numbers and summaries are listed above.
How does the 2021 Subaru Ascent do at state inspection?
In New York’s inspection lanes over the 12 months to Oct 10, 2026, the 2021 Subaru Ascent failed the emissions check on 1.7% of first inspections — close to the 1.9% for every 2021 model-year vehicle inspected; and the safety inspection on 1.4% (every 2021 vehicle: 1.5%). The figures are New York State DMV’s own inspection records, first inspections only, and the table above sets each one against every vehicle of the same model year.
What we hold, and what an empty row means
Paid vehicle-history reports will not tell you the difference between “nothing happened to this car” and “we never received that record” — both of the big two say as much in their own help pages. Most of what is on this page comes from complete federal registers, so we can tell you which is which, row by row.
| Data | Held | Source | What it covers — or what empty means |
|---|---|---|---|
| Fuel economy & configurations | 2 configurations | EPA certification records | Every configuration the EPA certified for sale, with its own test figures. |
| Emission certificates | 2 configurations | EPA emission certificates | Smog rating, standard and the sales area that decides where the car can be sold new. |
| Recalls | 2 | NHTSA recall campaigns | A complete federal register: every campaign covering this model year, with severity and advisory flags. |
| Owner complaints | 103 | NHTSA complaint database | Also complete, but unverified: these are reports owners filed, not findings. Counts scale with how many were sold. |
| Crash ratings | 1 tested | NHTSA NCAP | Only the configurations NHTSA chose to crash-test, which is never all of them. |
| Service bulletins | 381 | NHTSA manufacturer communications | Everything the manufacturer told its dealers about a defect or malfunction, short of a recall. |
| Investigations | none | NHTSA Office of Defects Investigation | No defect investigation has been opened. |
| Driver-assist crash reports | 1 | NHTSA Standing General Order 2021-01 | Crashes the manufacturer or operator reported with a Level 2 or automated-driving system engaged. Notices, filed before verification; not comparable across makes. |
| Specifications filed with NHTSA | 7 fields | NHTSA vPIC, decoded from VIN patterns | What the manufacturer filed under the federal VIN rule — a configuration, not the full trim ladder. |
| Measured dimensions | 7 fields | Transport Canada, Canadian Vehicle Specifications | Length, width, height, wheelbase, track and curb weight, measured on the North American versions. |
| Trims, pricing & equipment | none | Manufacturer press kit | We have not transcribed a press kit for this model year yet. This is our gap, not the manufacturer's — the one row here where an empty cell means we are behind. |
Rebuilt nightly; this page was generated 2026-10-26. Every figure above is traceable to the source named beside it, and the JSON for this page carries the same values with their identifiers.
Sources & method
Safety Signal starts every model-year at 100 and subtracts points per open NHTSA recall campaign by severity: critical 15 (fire risk, park-outside or do-not-drive advisories), high 8 (brakes, steering, airbags, loss of drive power, structure, battery), moderate 6, minor 3 (software, labels, lighting fixed by an update). The most serious recall counts in full and each further one counts 85% of the one before, because a vehicle sold in millions is recalled more often than a rare one without being more dangerous — and because a flat subtraction bottomed the scale out, scoring a vehicle with 22 recalls within a point of one with six. A ≥ 90, B ≥ 80, C ≥ 70, D ≥ 60, otherwise F. Read it as what it counts: recall campaigns on the federal record, weighted by severity. The damping reduces the sales bias by roughly 40% but does not remove it: like our complaint counts, this is not normalized by how many were sold, so a best-seller still scores somewhat worse than an obscure model with the same real risk. NHTSA crash ratings, do-not-drive and park-outside advisories, and the crash, fire, injury and death counts in owner complaints are reported separately on every page and never blended into the letter — a vehicle can hold five stars and a poor letter at once, and where that happens we say so rather than leave you to notice. Because the scale subtracts from a clean sheet, a model year too new to have been recalled, complained about or bulletined scores full marks on an empty record; we label those grades provisional rather than present them as earned.
EPA figures come from fueleconomy.gov vehicle records. Recalls, complaints, investigations and crash ratings come from NHTSA's public flat files, refreshed nightly.