2021 Subaru Crosstrek Common Problems & Defect Telemetry
Authoritative defect intelligence synthesized from 112 verified NHTSA owner complaints, 1 federal safety recalls, and interquartile failure mileage telemetry.
The 2021 Subaru Crosstrek receives a 6.9/10 MazicBay Reliability Index based on 112 verified NHTSA federal complaints and 1 safety recalls. The primary reported failure mode is Electric Power Steering Assist & Suspension Noise Reports with a median failure point at 5,350 miles (IQR: 1,975 – 18,510 mi). Out-of-warranty repairs benchmark at $450 – $1,400 .
7.2 complaints / 10k sold
Verified US federal records
Crash, fire & stall audit
1 Active / Free Remedies
2021 Crosstrek Failure Distribution by Vehicle Subsystem
Top Reported Problem Clusters (6)
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
“The contact owns a 2021 Subaru Crosstrek. The contact stated that while driving at undisclosed speeds and turning to the right or the left, the steering wheel and the vehicle were shaking and vibrating abnormally. The vehicle was taken to the local mechanic to be diagnosed, an...”
“Both front lower control arms have damaged bushing discovered at 48,840 miles by my mechanic. Took to local dealership on 8/16/25 and they claimed per TSB from Subaru for cracks that although it had cracks, it was not necessary to be replaced due to it not being cracked enough...”
“The contact owns a 2021 Subaru Crosstrek. The contact stated while driving at various speeds, the steering wheel was difficult to turn in either direction. Several unknown warning lights were illuminated. In addition, the contact stated that the vehicle was repaired under an u...”
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
“Was driving on highway when all of the lights on my dash illuminated. Eventually I got a warning for oil at temp alarm. Was giving code P2757 and P0700. Looks like this a common issue in Subarus but doesn’t look like it covers anything after 2020.”
“- Rod #4 failure of unknown cause, although there is speculation that current failure may be related to a major repair in oil system a year ago. - My safety along with my unborn child’s, husband’s and brother in law’s were all at risk. Another driver had to take evasive action...”
“Thermo Control Valve (TCV) causes a check engine light to come on and disables eyesight issue started May 29, 2026. The check engine would go on and off. Now it just stays”
Electrical Parasitic Drain, Infotainment & Harness Reports
- Unexplained battery drain after sitting overnight
- Infotainment display / instrument cluster blackouts
- Accessory malfunction / alternator fault warnings
“Was driving on highway when all of the lights on my dash illuminated. Eventually I got a warning for oil at temp alarm. Was giving code P2757 and P0700. Looks like this a common issue in Subarus but doesn’t look like it covers anything after 2020.”
“The DCM on our 2021 Subaru Crosstrek is causing a parasitic drain on the battery. It left us stranded several times. We replaced the battery twice in the past 15 months. There is a class action lawsuit against Subaru for this exact problem, but they won't replace it on our veh...”
“On ... ~... PM, at highway speed on ... eastbound near Frisco, CO (a mountain interstate), returning to Denver from Salt Lake City, my 2021 Subaru Crosstrek suddenly and without warning dropped into reduced-power limp mode and began lurching and shaking while the engine kept r...”
Transmission Hesitation, Hard Shifting & Slipping Reports
- Hard gear shifts / delayed engagement into Drive/Reverse
- Transmission shudder / jerking under acceleration
- Transmission slipping between gears
“Was driving on highway when all of the lights on my dash illuminated. Eventually I got a warning for oil at temp alarm. Was giving code P2757 and P0700. Looks like this a common issue in Subarus but doesn’t look like it covers anything after 2020.”
“Viscous Coupling and center differential failing. unable to turn at low speeds. Low mileage vehicle, under 40,000. This is a several 1000$ repair that happens right after warranty”
“On ... ~... PM, at highway speed on ... eastbound near Frisco, CO (a mountain interstate), returning to Denver from Salt Lake City, my 2021 Subaru Crosstrek suddenly and without warning dropped into reduced-power limp mode and began lurching and shaking while the engine kept r...”
Service Brakes, ABS Actuator & Master Cylinder Reports
- Spongy or hard brake pedal travel
- ABS / Brake warning light illuminated
- Extended stopping distance / pedal vibration
“The car in front of me was about a two car's lengths away. It was very cold and that car's exhaust plume was larger than normal. The exhaust plume was highlighted by sunlight, and I believe my car thought it was an object. The auto braking system alerted and immediately slamme...”
“Traveling at speed of 30MPH. A tocoma truck in front of me suddenly stopped in road lane. Driver said that his vehicle made an auto assist stop were the brakes lock. My 2021 Crosstrek eyesight/braking system failed. I saw the truck stop but the system failed and I went into th...”
“I just recently had my car come out of park while running at the top of a steep hill. I had stepped out of my car to deliver paperwork to my client. I walked to and from my car approximately 75-80 ft. As I was approaching my car I heard a clicking or a release sound then it be...”
Airbag Occupant Detection & Inflator Defect Reports
- SRS Airbag warning lamp illuminated
- Passenger occupant classification sensor failure
- Seat belt retractor lockup
“While driving 65mph on the freeway the front passenger window imploded into the car. This threatened the safety of both the driver and passenger as the glass flew at such high velocity it ended up in both occupants clothes, hair, and skin, the glass also was found as far as th...”
“We were rear ended on the interstate. Cars in front of us stopped and we also came to a complete stop and a few moments later we were hit. During the collision, none of the airbags were deployed. Both our front seats fully reclined backwards. None of our seatbelts locked. Only...”
“The contact owned a 2021 Subaru Crosstrek. The contact stated that while parking and the brake pedal was depressed, the vehicle accelerated unexpectedly and collided with a wall. The collision was at the front of the vehicle. The air bags deployed. The driver sustained arm, le...”
Official NHTSA Safety Recalls (1)
POWER TRAIN:AUTOMATIC TRANSMISSION:PARK/NEUTRAL START INTERLOCK SWITCH
Summary: Subaru of America, Inc. is recalling certain model year 2021 Crosstrek, 2022 Forester, 2021-2023 Legacy, and Outback vehicles. An insufficient weld may allow water to enter the inhibitor switch, causing it to fail.
Pre-Purchase Inspection Checklist for 2021 Subaru Crosstrek
Before purchasing a used 2021 Subaru Crosstrek, 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: 2021 Subaru Crosstrek
Is the 2021 Subaru Crosstrek a reliable used car?
The 2021 Subaru Crosstrek earns a 6.9/10 MazicBay Reliability Index based on 112 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 2021 Subaru Crosstrek?
The leading complaint category is Electric Power Steering Assist & Suspension Noise Reports, with a median failure point around 5,350 miles (IQR: 1,975 – 18,510 mi).
Are there free recall repairs available for the 2021 Subaru Crosstrek?
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.