Most common 2021 Subaru WRX problems
Share of the 13 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Subaru WRX complaints by model year
Best WRX years: 2010, 2012, 2011. Years to avoid: 2017, 2015, 2022, 2009, 2024. Compare all years →
2021 Subaru WRX recalls (1)
Exterior lighting › Back up lights › Switch
Subaru of America, Inc. (Subaru) is recalling certain 2015-2021 WRX vehicles. The backup light switch may corrode and become inoperative, which can result in the backup lights not illuminating and the rearview camera image not displaying when the vehicle is in reverse.
Remedy: Dealers will inspect and replace the backup light switch, as necessary, free of charge. Owner notification letters were mailed September 16, 2022. Owners may contact Subaru's customer service at 1-844-373-6614.
What 2021 Subaru WRX owners say
Transmission & drivetrain
Mileage is 19,300 On 4/5/23 i was entering the gated community where i live stoped pressed remote to open gate then with clutch engaged shifted my wrx into first and the entire steel shaft broke at base where pin secures shaft to linkage this is a wrx sti short throw shifter pn C1010VA001 445 dollar option the Subaru of Ontario repair department indicated that they have never seen such an issue in all ther years and did not have a clue as to why the steel thick shifter broke in half other than the obvious in which that i am in fact superman. The dealership Subaru of Ontario They called back and told me the defective steel rod was not covered under warranty and said that i caused the issue and i have to pay 1,200 with no eta or anything. …
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. …
Engine & cooling
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. …
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. …
2021 Subaru WRX engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 2.0L 4-cyl turbo | 6-speed manual | AWD | 20 / 27 / 23 |
| 2.0L 4-cyl turbo | CVT | AWD | 18 / 24 / 21 |
| 2.5L 4-cyl turbo | 6-speed manual | AWD | 16 / 22 / 18 |
EPA ratings. Class: Compact car.
Frequently asked questions
Is the 2021 Subaru WRX a good car?
Based on 13 owner complaints filed with NHTSA, the 2021 WRX rates average: about as many complaints as a typical year of the WRX at the same age. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2021 Subaru WRX?
The transmission & drivetrain — 6 complaints, 46% of all complaints for this model year. Next are the engine & cooling (5) and windows, wipers & sunroof (2).
How many recalls does the 2021 Subaru WRX have?
There is 1 recall for the 2021 Subaru WRX, the most recent from July 21, 2022 (switch). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Subaru WRX?
The best years by complaints, compared at the same age, are 2010, 2012 and 2011. Years to avoid or approach with caution: 2017, 2015, 2022, 2009 and 2024. See the full Subaru WRX years comparison.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.