2020 Subaru WRX Common Problems & Defect Telemetry
Authoritative defect intelligence synthesized from 17 verified NHTSA owner complaints, 1 federal safety recalls, and interquartile failure mileage telemetry.
The 2020 Subaru WRX receives a 7.7/10 MazicBay Reliability Index based on 17 verified NHTSA federal complaints and 1 safety recalls. The primary reported failure mode is Engine Stalling, Oil Consumption & Cooling Defect Reports with a median failure point at 52,743 miles (IQR: 43,272 – 62,215 mi). Out-of-warranty repairs benchmark at $950 – $3,200 .
6.8 complaints / 10k sold
Verified US federal records
Crash, fire & stall audit
1 Active / Free Remedies
Top Reported Problem Clusters (6)
Engine Stalling, Oil Consumption & Cooling Defect Reports
- Engine sudden stall / hesitation while driving
- Abnormal oil burning / consumption
- Check Engine Light (MIL) flashing
- Engine overheating / coolant loss
“The contact owns a 2020 Subaru WRX. The contact stated that while the transmission was shifted into neutral (N), the instrument panel displayed that the transmission was shifted in reverse (R), and the rearview camera image was displayed. The check engine warning light was ill...”
“2020 WRX: TR690 (CVT) transmission that the car came equipped with, began leaking between the engine and (CVT) transmission, it was noticed during an oil change at 71686 miles but not identified as (CVT) transmission fluid immediately, it was cleaned and assumed to be oil spil...”
“I purchased the vehicle used with 33800 miles and at 34100 the engine stalled and was hard to start, once started it was knocking severely. I have seen a class action law suit based on the same issues but the 2020 model year is not included”
Electrical Parasitic Drain, Infotainment & Harness Reports
- Unexplained battery drain after sitting overnight
- Infotainment display / instrument cluster blackouts
- Accessory malfunction / alternator fault warnings
“Parasitic battery problem My car battery keeps dying on my Subaru sti 2020 after one day of not driving. I have had the car checked with Subaru dealership and a local shop but no issues were found. This morning I had to get my car jumped again after not driving it for one day....”
“The contact owns a 2020 Subaru WRX. The contact stated while attempting to start the vehicle, the vehicle would not start. The vehicle was diagnosed by the dealer but no cause for the failure was found. The vehicle was taken to an independent mechanic and the contact was infor...”
“Battery drainage occurring often. I have been left stranded at night time in unsafe areas. The car was taken to the dealer twice and both times the battery has been “recharge”. I”ve had the car for less than 3 years. No symptoms occur before this happens. This seems to happen ...”
Transmission Hesitation, Hard Shifting & Slipping Reports
- Hard gear shifts / delayed engagement into Drive/Reverse
- Transmission shudder / jerking under acceleration
- Transmission slipping between gears
“The contact owns a 2020 Subaru WRX. The contact stated that while the transmission was shifted into neutral (N), the instrument panel displayed that the transmission was shifted in reverse (R), and the rearview camera image was displayed. The check engine warning light was ill...”
“2020 WRX: TR690 (CVT) transmission that the car came equipped with, began leaking between the engine and (CVT) transmission, it was noticed during an oil change at 71686 miles but not identified as (CVT) transmission fluid immediately, it was cleaned and assumed to be oil spil...”
“UPON APPLYING PARKING BRAKE TO THE MAXIMUM EXTENT POSSIBLE, WHICH IS BEYOND 11 CLICKS AS STATED AS REQUIRED BY SUBARU, AND THE VEHICLE IS ON AN INCLINE GREATER THAN 8 DEGREES, THE VEHICLE WILL NOT REMAIN IN PLACE. I AM ALSO CONCERNED THAT IF THE BRAKE IS REQUIRED IN AN EMERGEN...”
Service Brakes, ABS Actuator & Master Cylinder Reports
- Spongy or hard brake pedal travel
- ABS / Brake warning light illuminated
- Extended stopping distance / pedal vibration
“UPON APPLYING PARKING BRAKE TO THE MAXIMUM EXTENT POSSIBLE, WHICH IS BEYOND 11 CLICKS AS STATED AS REQUIRED BY SUBARU, AND THE VEHICLE IS ON AN INCLINE GREATER THAN 8 DEGREES, THE VEHICLE WILL NOT REMAIN IN PLACE. I AM ALSO CONCERNED THAT IF THE BRAKE IS REQUIRED IN AN EMERGEN...”
“TL* THE CONTACT OWNED A 2020 SUBARU WRX. THE CONTACT STATED THAT WHILE HE SON WAS DRIVING AT 40 MPH, HE ATTEMPTED TO DEPRESS THE BRAKE PEDAL HOWEVER, THE VEHICLE FAILED TO STOP, RUNNING A RED LIGHT, THE VEHICLE WAS T-BONED. THE CONTACT STATED THAT THE IMPACT CAUSED THE VEHICLE...”
Electric Power Steering Assist & Suspension Noise Reports
- Sudden loss of electric power steering assist
- Steering wheel pull or highway wander
- Clunking / knocking noise over bumps
“Got in the car to drive to work and the front windshield just cracked on its own with nothing hitting it.”
“WINDSHIELD CRACKED FOR NO APPARENT REASON. CAR WAS STATIONARY.”
Airbag Occupant Detection & Inflator Defect Reports
- SRS Airbag warning lamp illuminated
- Passenger occupant classification sensor failure
- Seat belt retractor lockup
“Rear passenger seatbelts fraying. My two children are sitting in the back seat, there is no warning that my seatbelts were frayed putting their life at risk! Took the car to the dealership to have them check what is going on with the seatbelt mechanism, they said “there is no ...”
“TL* THE CONTACT OWNED A 2020 SUBARU WRX. THE CONTACT STATED THAT WHILE HE SON WAS DRIVING AT 40 MPH, HE ATTEMPTED TO DEPRESS THE BRAKE PEDAL HOWEVER, THE VEHICLE FAILED TO STOP, RUNNING A RED LIGHT, THE VEHICLE WAS T-BONED. THE CONTACT STATED THAT THE IMPACT CAUSED THE VEHICLE...”
Official NHTSA Safety Recalls (1)
EXTERIOR LIGHTING:BACK UP LIGHTS:SWITCH
Summary: 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.
Pre-Purchase Inspection Checklist for 2020 Subaru WRX
Before purchasing a used 2020 Subaru WRX, perform the following targeted inspections based on reported federal defect patterns:
Scan the OBD-II port under the dash for pending freeze-frame codes (e.g. P0300 misfires, P0087 fuel rail pressure, P0420 catalytic efficiency).
Test vehicle at low-speed stop-and-go and highway merges. Check for delayed reverse engagement or gear shift shudder between 2nd and 3rd gears.
Verify that all 1 NHTSA safety recall campaigns have been performed by an authorized dealership using the VIN.
Ensure the instrument cluster, center screen, and auxiliary charging ports operate with stable 12.0V–14.4V alternator voltage.
Defect & Reliability Q&A: 2020 Subaru WRX
Is the 2020 Subaru WRX a reliable used car?
The 2020 Subaru WRX earns a 7.7/10 MazicBay Reliability Index based on 17 federal owner reports. Vehicles maintained under factory service schedules exhibit strong longevity past 150,000 miles.
What is the most frequent defect reported on the 2020 Subaru WRX?
The leading complaint category is Engine Stalling, Oil Consumption & Cooling Defect Reports, with a median failure point around 52,743 miles (IQR: 43,272 – 62,215 mi).
Are there free recall repairs available for the 2020 Subaru WRX?
Yes, the NHTSA records 1 safety recall campaign(s) for this model year. All safety recalls are performed 100% free of charge by authorized franchise dealerships regardless of vehicle warranty status.