2021 Subaru Crosstrek electrical problems

Filed Aug 24, 2026 · Electrical · RI

There have been multiple instances where my car has failed to “restart” if the auto-start-stop feature is on. I immediately turn that setting off every time I get into my car because if I pause for too long at a light/stop sign etc.the engine will stall and turn off (without being in park). I have reported this to Subaru on many occasions and they’ve told me to replace the battery, so I did, and nothing changed. I’ve also replaced the starter and that didn’t help either. I’m now unable to turn my car off at gas stations because I’m worried it won’t restart. I just saw that a law suit has opened because of this electrical issue so I wanted to formally report my concerns. This needs to be a safety recall.

Filed Jul 31, 2026 · Driver assistance, Electrical · KY

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.

Filed Jun 10, 2026 · Electrical · WI

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 vehicle because it has over 45,000 miles. A defective DCM is a widely known problem with many Subaru models. We never received notice of this problem from Subaru, nor were there any warnings, messages, or indications that this was a problem, until we took it to a mechanic for service, who sent us to a Subaru dealer because it had to be repaired by them.

Filed May 20, 2026 · Electrical, Engine · CO

On [XXX] ~[XXX] PM, at highway speed on [XXX] 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 running. I lost the ability to accelerate or maintain speed. At the same moment the check engine light came on and multiple active safety systems automatically disabled: EyeSight, pre-collision braking, vehicle dynamics (traction/stability) control, and hill start assist. It took about two minutes to manage the lurching, power-limited vehicle across multiple lanes of traffic to reach the shoulder. My partner was in the vehicle. Had this happened on a bridge, a grade without a shoulder, a tunnel approach, or in heavier traffic, I believe a collision was a realistic outcome. The vehicle was towed to a Subaru dealer and diagnosed with a failed Thermo Control Valve. Sixteen trouble codes were stored, including P26A6, P0606, P060B, P2138, P2135, P2122, P2119, P2004, P2005, and P0191. Mileage was 49,983. There was no prior symptom. The vehicle had a full multi-point inspection at the same dealer only 11 days and ~1,400 miles earlier ([XXX]); nothing was flagged. This failure mode is already known to Subaru, addressed by Technical Service Bulletin 09-119-24 and a warranty extension to 15 years/150,000 miles; the dealer repair order confirms the TSB. I am concerned Subaru handles a safety-relevant failure, one that disables collision-avoidance systems at highway speed, through a quiet warranty extension rather than a recall or owner notification. Owners get no warning and discover it only when it fails dangerously. I request the federal safety agency open a formal safety defect investigation. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed May 16, 2026 · Electrical · ME

Purchased in August 2024, had to get a new battery 2 days after purchase & then went to the dealership January 2025 because my battery kept dying & I was stranded at the airport late night. They acknowledged is has a parasitic draw but did not notate the source. They claimed I needed a new battery when my previous Subaru branded battery was only 5 months old. The new battery was almost $600 which is double/ triple a store branded equivalent. I purchased yet another battery but non-Subaru branded since theirs did not last even 6 months. Still have been experiencing the same issue. I pulled the dcm fuse and let my car sit for several days as a test. The battery did not die with the dcm fuse removed. The front speakers and Bluetooth are linked to the dcm fuse so they do not work if it is unplugged.

Filed Oct 17, 2025 · Electrical, Steering · 60,000 miles · PA

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 unidentified recall; however, the recall repair failed to prevent a failure. The contact stated that upon further inspection, the vehicle occasionally experienced an abnormal battery energy consumption, although the battery was previously recharged. The local dealer was contacted, but the vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 60,000.

Filed Jul 21, 2025 · Electrical, Engine · 120,000 miles · MD

The contact owns a 2021 Subaru Crosstrek. The contact stated that while his daughter was driving at an undisclosed speed, the vehicle inadvertently lost motive power in the middle of the roadway. The contact stated that several unknown warning lights were illuminated. The vehicle was towed to the dealer, who diagnosed a failure with the battery. The vehicle was repaired, but the failure reoccurred. The vehicle was towed to the dealer and diagnosed with head gasket failure. The vehicle was not repaired. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the federal safety agency Hotline for assistance. The failure mileage was 120,000.

Filed Nov 20, 2024 · Electrical · ME

What component or system failed or malfunctioned, and is it available for inspection upon request? The USB A outlets under the head unit that allow connection to Android Auto and Apple CarPlay Yes it is available for inspection upon request How was your safety or the safety of others put at risk? The connection when hooked up to a phone is intermittent. This results in driver distraction whenever it disconnects due to trying to get it to reconnect. Especially when using gps apps this means the driver may be "lost" until it can be reconnected, which means they will try to get it reconnected while driving which is dangerous. Sometimes it goes in and out every 60-90 seconds. Sometimes it won't connect at all until the vehicle is power cycled or the head unit is reset but neither of these guarantees a stable connection. The issue is not fixed by replacing the USB cable or the phone with a brand new phone. The cables and phone do not have this issue with any other USB port that they have been used on (in other vehicles). Has the problem been reproduced or confirmed by a dealer or independent service center? Not on my vehicle but there are hundreds of reports online for years with multiple Subaru models where it has been. I could get it reproduced easily, just haven't had the time. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? No Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No This happens every day, at any speed, and has been happening since I got the vehicle at 20000 miles and there are 35000 miles on it now (approximately).

Filed Nov 19, 2024 · Electrical · 27,000 miles · IL

The contact owns a 2021 Subaru Crosstrek. The contact stated while driving at an undisclosed speed, the vehicle shut off unintendedly and failed to restart. The contact stated that several unknown warning lights were illuminated. The vehicle was towed to the dealer where it was diagnosed and determined that the battery had failed. The vehicle was not repaired. The manufacturer was notified of the failure and opened a case. The approximate failure mileage was 27,000.

Filed Oct 14, 2024 · Driver assistance, Electrical · VA

Check engine light came on while idling. "Eyesight" tech turned off along with certain associated safety features. Next day, vehicle struggled to ignite. Came to a complete stop at an intersection, released brake, stepped on gas, and the car rolled forward as if in neutral and bucked up and down like a rodeo bull.