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On XXX, I was operating my vehicle heading Pocono PA, on I-80 in [XXX]. At approximately mile point 142.4, the vehicle's onboard Forward Collision Avoidance System (FCAS) suddenly and unexpectedly activated without any obstruction, hazard, or vehicle ahead.  The abrupt, automated braking and system intervention caused an immediate loss of vehicle control, forcing the car into a 180-degree spin. The violent shift in momentum caused the vehicle to roll over on the highway before coming to a stop. No other vehicles were involved in the initiation of the crash. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

SUBARU ASCENT 2023 FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

In 2024, 2025, and 2026, I have had 2 incidents in each year where the cruise control is set to 60 to 65 mph and the cruise control then accelerates the car past 100 mph.  When this occurs, tapping the break does NOT disengage the cruise control.  All 6 times I have had to slam the breaks to a full dead stop while the car tries to accelerate anyway.    April 4, 2026 and April 14, 2026 are the most recent occurrences and all occurrences so far for this issue have been during a downhill road incline.  The dealer has dismissed the problem every time and has been unable to fix or reproduce the problem on demand.  The random frequency of this problem can easily lead to a significant accident for the driver or others in the vicinity.  And the lack of resolution from the Subaru dealer has lead me to report the issue here in hopes that if this is occurring for other vehicles that the company takes an actual resolution to solve the issue in their cruise control function.

SUBARU ASCENT 2023 FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

2023 Subaru Ascent, under manufacturer basic warranty.  Factory OEM battery has repeatedly failed. Voltage drops below 11.5V in normal use. Three documented failures in six weeks.  SAFETY INCIDENT: Vehicle died on a public street and became completely immobilized. Brake warning light activated. Vehicle would not move even after a jump start. Passengers had to exit in a live traffic lane. A second vehicle was used to transport a replacement battery. The original battery is in my possession and available for inspection.  A subsequent failure occurred when the original battery was reinstalled for a manufacturer-required diagnostic. Vehicle again would not start.  KNOWN DEFECT: Subaru TSB 07-213-22R (revised 03/28/24) covers the 2023-24 Ascent battery and acknowledges the factory specification as inadequate, directing dealers to replace the battery, tray, cover, and holding rod with higher-capacity parts. This TSB was not proactively applied to my vehicle. The dealer did not identify or disclose it at earlier service visits where the battery concern was reported and "could not be reproduced."  No recall or proactive owner notification has been issued. Dealers are not applying the TSB preventively.  A complaint is open with Subaru of America Customer Advocacy. The manufacturer has declined to reimburse the out-of-pocket emergency replacement and has required a dealer diagnostic that has been repeatedly blocked by manufacturer/dealer procedural requirements.

SUBARU ASCENT 2023 ENGINE

Sirius XM ads showing up and thereâs no way to opt out. The ads are distracting/difficult to close and cover a good amount off my media system even while driving.

SUBARU ASCENT 2023 UNKNOWN OR OTHER

I was entering an intersection to make a left-hand turn.  I was driving at a low speed.  My foot was pressing the accelerator and the car entered the intersection.  In the middle of the intersection, the car wheels suddenly stopped turning.  There was nothing in front of the car.  Cars behind me began honking since my car stopped suddenly and unexpectedly while I saw a notice displayed on the car messaging, but I do not know what it said.  I am unsure if the car engine turned off or not, but I remember turning on my hazard lights,  putting the car in park and pressing the start button.  I was able to drive out of the intersection to a safe location and turned off the car engine. I restarted the car and drove immediately to the dealer where I purchased the car from for them to evaluate it.  It is currently being submitted for diagnostics at the car dealer.  I told them I would make this safety report while I waited.

SUBARU ASCENT 2023 FORWARD COLLISION AVOIDANCE: WARNINGS

2023 Subaru Ascent — vehicle data sourced from FuelEconomy.gov.

La Subaru Ascent (2023) è un SUV spazioso e sicuro, ideale per la famiglia. Con la sua trazione integrale di serie e un motore turbo da 2.4 litri, offre prestazioni affidabili per ogni tipo di viaggio.

	2019	2020	2021	2022	2023	2024	2025
Prezzo	—	—	—	—	$33,895	$34,395–$48,695	$34,395–$49,495
Cilindrata	2.4 litre2387 cc(145.664 cu in)	2.4L	2.4L	2.4L	2.4L	2.4L	2.4L
Tipo carburante	Benzina	Normale	Benzina normale	Normale	Regular Gasoline	Benzina normale	Normale
Trasmissione	Automatico a 8 marce	Automatico (AV-S8)	Automatico (AV-S8)	Automatico (AV-S8)	CVT	Automatico (AV-S8)	Automatico (AV-S8)
Tipo di carrozzeria	SUV 6/7 posti	SUV standard 4WD	SUV standard 4WD	SUV standard 4WD	SUV	SUV standard 4WD	SUV standard 4WD

Subaru Ascent (2023) Specifiche