2022 Subaru Outback: multiple warning lights

Filed Aug 18, 2026 · Electrical, Engine · TX

My 2022 Subaru Outback Premium has had repeated intermittent stall/no-start events. The exact failed component is UNKNOWN, but the issue appears related to the fuel system, engine control, electrical system, or heat-related sensor/relay failure. The vehicle is available for inspection upon request. The first event occurred while parked: the engine shut off/would not start, while the dashboard and screen remained powered. After about 30 minutes, it started again. A later event occurred while driving: the engine suddenly shut off, but the dashboard and infotainment screen stayed on. I could not restart the engine for about 10 minutes. When it restarted, the vehicle would not accelerate past about 30 mph, suggesting reduced-power/limp mode. This created a serious safety risk because the vehicle lost motive power while in traffic. The vehicle was taken to a Subaru dealership. The dealer diagnosed the high-pressure fuel pump as failing and replaced it under the powertrain warranty. About one month later, the same issue occurred again while parked: the vehicle shut off, all dashboard warning lights illuminated, and it took several minutes before it would restart. The dealer then stated the battery was weak and replaced the battery. The new battery tested good after replacement. One week later, the issue returned again. A consistent pattern is that the problem occurs when it is hot outside and the vehicle has been running for more than one hour. The vehicle has been inspected by a Subaru dealership multiple times. The problem has not been reliably reproduced by the dealer, but the dealer previously confirmed a failing high-pressure fuel pump and later a weak battery. Warning lamps appeared at the time of failure, including multiple dashboard lights/check engine-type warnings after the engine shut off. There were no consistent warning messages before the stall/no-start events.

Filed May 20, 2026 · Engine · AL

After highway driving for 50 miles, stopped for a red light. Engine died but all lights stayed on. Sat 5 minutes with dead engine and when I tried again, the car started. Drove 1 mile to next light and it happened again. Went to Auto Zone (it was a Sunday and dealerships were closed) and they tested the battery which was 100%. Two days later, drove car for 10 minutes then parked for errand; 15 minutes later, car wouldn't start. Let it sit for a minute and it started right up. This happened 8 months ago (engine died at stop light after having been driven 30+ miles) but Subaru dealership could find nothing wrong. Also, radio speakers randomly will blast so loud it startles and distracts everyone in the car.

Filed Dec 3, 2025 · Electrical · CA

I experienced two serious electrical failures within a few days that caused the vehicle to stall without warning. At Nov 29, 2025, after parking for about 20 minutes, the car would not start. Symptoms included: • Very weak clicking from the starter • Dashboard flickering and dimming • Unable to shift out of Park without manual override • Jump-start did not work even though power was delivered The vehicle was towed to the Subaru dealer. The dealer reported: • Battery “low but fine after charging” • Alternator “normal” • Starter “normal” • No warning codes On Dec 2, 2025 the vehicle had been released without repairs. Only a few minutes after leaving the dealer, the car stalled in live traffic during an Auto Stop/Start event. Symptoms: • Immediate loss of all electrical power • All warning lights flashing erratically • Hazard lights did NOT illuminate externally • Gear shifter locked again • Vehicle would not restart on battery • Subaru roadside assistance jump-started the vehicle With Auto Stop/Start disabled, it was barely drivable and returned to the dealer. This appears to be a serious electrical or charging-system failure, possibly involving: • intermittent alternator failure • voltage collapse during Auto Stop/Start • BCM or power distribution fault The vehicle can stall unpredictably in traffic without warning, creating a significant risk of collision.This is not normal battery discharge — the battery was fully charged at the dealer minutes before the second failure. I am filing this complaint because this issue is dangerous and the dealer cannot reproduce or diagnose it. A formal investigation or recall may be necessary.

Filed Mar 26, 2024 · Engine · MO

Thermal control valve became inoperable at less than 40,000 miles. Engine shut down and began to overheat. Part is known to easily fail by Subaru. Has been examined by dealership. All warning lights came on at once, and cruise control and Eyesight were disabled. the federal safety agency Recall Number 23V755000 We have been on the list for this recall repair since 12/28/2023, we were told when we scheduled the service appointment for the TCV that the dealership was not doing any more recall repairs any time soon as they could not get parts.

Filed Dec 27, 2022 · Driver assistance, Electrical · NY · crash

Main Wiring harness / Main Electrical system malfunction, causing all dash lights to consistently be on. which in turn prevents all of the ADAS functions to no longer work. Vehicle has now been in 2 accidents which could have been prevented by these safety features. vehicle had had main harness replaced at dealers cost at dealership , and one at cost of insurance, problem remains unfixed/unfixable. vehicle is specifically 2022 Subaru outback Onxy XT.