2021 Subaru WRX Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2021 Subaru WRX, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Powertrain (other)631.6%
- Engine526.3%
- Visibility210.5%
- Electrical210.5%
- Fuel system15.3%
- Steering15.3%
- Suspension15.3%
- Interior & seats15.3%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
I am filing this complaint to report a serious safety concern involving my 2021 Subaru WRX, which is currently covered under the manufacturer’s powertrain warranty as well as an extended warranty. Subaru of Ontario, an authorized Subaru dealership, failed to properly diagnose or repair ongoing engine issues during multiple service visits. Despite documented problems, the vehicle was released to me in a condition that was unsafe to operate since their location did not have a loaner, fully aware of the issues at hand, exposing me and my family to serious risk while driving. As a result of this negligence, the engine has now deteriorated to the point of needing a full replacement. Subaru of Ontario is attempting to charge me $3,000 for an engine replacement, despite warranty coverage that should fully apply. The dealership has refused to acknowledge their failure in prior inspections or take accountability for releasing an unsafe vehicle back onto the road. I am reporting this as a vehicle safety hazard and potential warranty fraud, as the dealership’s actions directly led to unsafe operating conditions and are now being used as justification to deny coverage. I urge the NHTSA to investigate both this specific incident and whether this may reflect a larger pattern among Subaru service centers. I am prepared to provide service records, warranty documentation, dealership communications, and supporting evidence upon request.
NHTSA ID:#10186366 SUBARU TSB #[XXX] This bulletin announces a design change to the clutch release bearing. PRODUCTION CHANGE INFORMATION: The new clutch release bearing was incorporated into production starting with VIN [XXX]. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Too few reports in this category for a page of its own — they appear in the full complaint list.
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
In October 2024, my vehicle, a 2021 Subaru WRX STI, was purchased from a Toyota dealership (Fort Bend Sterling McCall Toyota). The dealership sold the vehicle with an oil issue and a modified ECM. This issue caused catastrophic engine failure while driving. The vehicle stalled and could not be started. Subaru dealership technicians confirmed the cause as improper service leading to catastrophic oil starvation. The failure put both myself and others at risk, as the engine lost power mid-operation on a busy road. The vehicle was towed to a certified Subaru dealership, where it has been detained since December 2024. Despite being under warranty, repairs have been delayed for over 6 months due to blame disputes between the dealership, the manufacturer, and the extended warranty provider. There were no prior dashboard warnings or messages before failure, only loss of power and engine noise at the time of the incident. The vehicle has been fully inspected and documented by the Subaru service center, and all evidence has been preserved. I have been without a primary vehicle for over 7 months.
I am filing this complaint to report a serious safety concern involving my 2021 Subaru WRX, which is currently covered under the manufacturer’s powertrain warranty as well as an extended warranty. Subaru of Ontario, an authorized Subaru dealership, failed to properly diagnose or repair ongoing engine issues during multiple service visits. Despite documented problems, the vehicle was released to me in a condition that was unsafe to operate since their location did not have a loaner, fully aware of the issues at hand, exposing me and my family to serious risk while driving. As a result of this negligence, the engine has now deteriorated to the point of needing a full replacement. Subaru of Ontario is attempting to charge me $3,000 for an engine replacement, despite warranty coverage that should fully apply. The dealership has refused to acknowledge their failure in prior inspections or take accountability for releasing an unsafe vehicle back onto the road. I am reporting this as a vehicle safety hazard and potential warranty fraud, as the dealership’s actions directly led to unsafe operating conditions and are now being used as justification to deny coverage. I urge the NHTSA to investigate both this specific incident and whether this may reflect a larger pattern among Subaru service centers. I am prepared to provide service records, warranty documentation, dealership communications, and supporting evidence upon request.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Visibility
Reports naming windshields, glass, wipers, defrosters and mirrors.
From owner reports, verbatim
I was de-frosting my windshield early in the morning when I watched a crack start at the base of the driver's side windshield and travel up the window and back down to the base of the windshield. The car was not moving, there was no impact to the windshield at all. I contacted the Subaru dealer and brought the car in to be inspected. They told me that the crack was because of a rock chip although there was never any rock chip impact and the car was not even moving when the crack developed. There was a previous class action lawsuit settled against Subaru for identical cracks developing in their windshields. I contacted Subaru of America to see what they would do and they gave a discount for a new windshield but the new windshield would still have cost over $700 out of pocket for a car that was less then one month old.
Windshield cracked to the point of requiring repair from pinhead size chip that barely left a mark. The windshield is being replaced but photos are available upon request. The crack quickly spread to the outer edge of the windshield, causing further risk to the structural integrity of the entire windshield. The problem was confirmed by a glass shop as requiring a replacement.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
Car battery keeps dying and is inadequately charged resulting in loss of electronics. The problem is a faulty DCM system.
Lifetime Tracking Data Displayed Incorrectly with higher data results. High rev's max speed 131mp. I have never gone over 89 mp. MANUFACTURER COMMUNICATION NUMBER: 09-79-21 Components: ELECTRICAL SYSTEM, ENGINE AND ENGINE COOLING NHTSA ID Number: 10201791 Manufacturer Communication Number: 09-79-21 Summary This bulletin announces availability of ECM reprogramming files to address isolated concerns of inaccurate values being displayed when accessing Lifetime Tracking Data using the Subaru Select Monitor and / or a Generic Scan Tool (GST). 1 Affected Product Vehicle MAKEMODELYEAR SUBARUWRX2021
Too few reports in this category for a page of its own — they appear in the full complaint list.
Fuel system
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.
From owner reports, verbatim
Excessive blow by contaminating MAP sensors & creating lean/rich conditions. This causes loss of power, stalling and will lead to catastrophic engine failure. EGR system is faulty
Too few reports in this category for a page of its own — they appear in the full complaint list.
Steering
Reports naming the steering system — racks, columns, power-steering assist and steering linkage.
From owner reports, verbatim
Hello my name is [XXX], I'm the first time owner of this vehicle, purchased this vehicle new of the dealer with 5 miles, ever since I bought it the car has an issue that it steers to the right at any speed, road, condition very dangerous. Over the past months and years I told Subaru dealers, service department, sales guy and Subaru corporate about the issue, long story short I've gone to the service department to fix this issue at least 8 times, the last time an engineer from Subaru worked on the car but the car is not fixed and it continues to have this issue, I open a claimed with the Texas department of motor vehicle for a lemon claimed but Subaru has denied it as a lemon and they constantly ruined my lug nuts, studs, my alignment and now I need new tires. I need help to resolve this, I have multiple repair orders, video's and pictures to prove it all. INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).
Too few reports in this category for a page of its own — they appear in the full complaint list.
Suspension
Reports naming suspension components — springs, struts, shocks, control arms and related hardware.
From owner reports, verbatim
Hello my name is [XXX], I'm the first time owner of this vehicle, purchased this vehicle new of the dealer with 5 miles, ever since I bought it the car has an issue that it steers to the right at any speed, road, condition very dangerous. Over the past months and years I told Subaru dealers, service department, sales guy and Subaru corporate about the issue, long story short I've gone to the service department to fix this issue at least 8 times, the last time an engineer from Subaru worked on the car but the car is not fixed and it continues to have this issue, I open a claimed with the Texas department of motor vehicle for a lemon claimed but Subaru has denied it as a lemon and they constantly ruined my lug nuts, studs, my alignment and now I need new tires. I need help to resolve this, I have multiple repair orders, video's and pictures to prove it all. INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).
Too few reports in this category for a page of its own — they appear in the full complaint list.
Interior & seats
Reports naming seats, latches, locks, linkages and interior fittings.
From owner reports, verbatim
Manual (not power) Driver seat is loose-rocking car only has 47000 miles but this hardware failure will get worse over time definitely a safety concern if bolt breaks it appears that the plastic washer is wearing most likely poor material should be polyurethane or something like the form of a grommet that absorbs since vehicle has hard suspension NOTE: I have video however cannot create video < than 10mb
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .