When driving my 2018 Subaru WRX premium in the heat with the A/C on it is causing extreme driving conditions with the car stuttering causing fluctuation in speed with the car dragging then propelling dramatically due to the turbo engaging. The erratic change in the performance of the car is not normal and is cause for attention from the manufacturer. I was driving on the freeway and this pulled such an extreme drain on the cars electrical system and cooling system it almost made my car overheat in the middle of fast moving traffic. My car is well maintained and driven responsibly. I had my family in the car and this could have caused a traggic situation as the freeways here in California are very unforgiving.

- Palmdale, CA, USA

Check engine light advising cylinder misfire advising ringland oiston failure sparknplug destroyed

- West Palm Beach, FL, USA

Vehicle mileage was 7387 miles. While driving several check engine lights illuminated including traction control, check engine light, ABS, hill decent assist, cruise control icon flashing. Vehicle power was dramatically reduced. Made appointment next day with Subaru dealership. I was informed code P0016 showed up on the diagnosis. It indicated crankshaft position camshaft position correlation bank 1 sensor a. vehicle was at dealership for close to two weeks. Numerous parts were replaced including oil valve assembly, camshaft sprocket assembly, ECU control unit, guide chains, chain lever, etc. I have invoice from dealership detailing all parts replaced. Although covered under warranty, a brand new vehicle with under 8000 shouldn't encounter these issues.

- Uxbridge, MA, USA

This issue occurs on acceleration, most noticeable when merging onto freeway from on ramp 1/2 throttle, the vehicle starts to accelerate normal then hits around 4200 RPM and the boost gauge goes nuts fluctuating up and down and the vehicle looses power, hesitates, surges ( like a flat spot ) then finally gets a little higher in RPM and it will pick up again through the rest of RPM gauge, most noticeable in lower gears ( mines a 6 speed manual, I have taken the car to dealer on 5/30/18 with 1380 miles on the odometer, huffines Subaru denton Texas, tony the service manager drove my car and duplicated the complaint, he then proceeded to get another new WRX off the lot similar to mine and again duplicated the complaint ( so this is a known issue ) the dealer claims its just a design in the car, its very unsafe as you think you will get up to speed and then it hesitates which could cause an accident, the dealer did say they would open a case with Subaru techline which they did not, so I called Subaru customer service and filed a complaint, they call back 2 days later and tell me we spoke to dealer nothing we can do, so I proceeded to do an internet search and found numerous people complaining about the same issue on 17-18 WRX models, I currently have 2006 miles on the car and its still doing this, not sure if its a drive by wire, throttle map issue or a flaw in the factory tuning causing this but it needs to to be addressed and fixed, vehicle gives false sense of security on accelleration.

- Sanger, TX, USA