Tl* the contact owned a 2018 subaru crosstrek. while the contact's son was driving at low speeds and making a left turn, the vehicle became difficult to accelerate. a pick up truck crashed into the rear passenger side quarter panel of the contact's vehicle. there were no warning indicators illuminated. the vehicle was towed to an independent mechanic. there were no injuries and a police report was not filed. the air bags did not deploy. the contact called subaru of grapevine (2651 william d tate ave, grapevine, tx 76051, (817) 438-1700) and informed them of the failure. the vehicle was not diagnosed or repaired. the manufacturer was contacted and referred the contact to a local dealer. the insurance company deemed the vehicle destroyed. the failure mileage was 20,000.
Intermittent jerky acceleration combined with a significant loss in power during modest acceleration. at times i get no acceleration while the car jerks between 2,000 & 3,000 rpm. this is unpredictable as to when it might happen but occurs at engine speeds under 3,000 rpm regardless of vehicle speed or gear selected. my initial impression was that it is most frequent when resuming driving after having stopped for a short period which was preceded by prolonged high speed driving. now it seems it can happen anytime. may be related to our high ambient temps this time of year. there are numerous accounts of others having the same problem on this forum. https://www.subaruxvforum.com/threads/hesitation-while-modest-accelerating.163650/ i took it to my subaru dealership for service. they said they were able to reproduce what i describe and say it is "normal". i have owned 7 manual transmission vehicles prior to this one and can say it is anything but normal. "normal" apparently means it is a known problem and there's nothing my dealer can do about it.
While driving on the highway, the engine just stopped and the entire vehicle turned off (computers and all). the cruise control was being turned off (from going about 75) because i was approaching traffic and it just turned off. brakes still worked and i got on the shoulder. then when trying to turn it back on, it would have very strange noise like an old fan or clunking. i would press my accelerator all the way down and it would only go 5 miles an hour. finally after turning the car off an restarting enough times it ran normally. but then the computer was on the fritz. flashing the high incline sign, the four wheel drive sign, and flashing all the cruise control. and the check engine light is on.
Driving on highway adaptive cruise control engaged. skies are grey. it's about 1300. no rain. in right lane. 2 cars ahead exited and cruise control did not see the white truck ahead of us who was slowing down for traffic. the car increased speed, accelerating into the back of the truck. we applied our breaks and avoided an accident going from about 50 mph to the slow traffic speed of about 20 mph in 10 yards. it was quite scary. i similar incident with the car not seeing a white truck happened about a year ago in stop and go traffic driving through seattle.
Upon starting car in driveway found power steering sluggish and requiring great force (operative, but no apparent boost). engine sluggisn like limp-home mode. additionally mil, tc and other lights illuminated on dash. i took photo. i forget if it threw odb codes, but i remember that it two battery disconnect cycles, and two odb code clearing cycles, to regain normal function. i forget id any odb codes were set. here are the conditions: daytime morning, about 11am, ambient temperature about 65 degrees. car parked in driveway. i previously (about 30 minutes before) moved car from street to driveway. date listed below is approximate. i will update when i check exif data on pix.