What engine problems are reported on the 2019 Subaru Ascent?

NHTSA received 51 engine-related complaints for the 2019 Ascent, 12% of all complaints filed for that model year. Common patterns include PCV valve failure causing smoke and power loss, engine surging at low speed, and a raw gas smell in the cabin.

Is there a recall for the 2019 Subaru Ascent engine?

Yes. Recall 19V856000, reported December 2, 2019, covers a PCV valve that can separate and let components enter the engine. Subaru dealers inspect and replace the valve free of charge.

At what mileage do 2019 Ascent engine problems usually appear?

The median mileage at failure for engine complaints on the 2019 Ascent is 11,841 miles, based on NHTSA complaint data.

How does the 2019 Ascent's engine complaint rate compare to later years?

The 2019 Ascent had 51 engine complaints (12% share), higher in raw count than 2020's 33 (10% share) and far above 2022 through 2025, which range from 3 to 9 complaints per year.

2019 Subaru Ascent Engine Problems

NHTSA lists 51 engine complaints for the 2019 Subaru Ascent, 12% of that year's 441 total complaints, with a median failure mileage of 11,841 miles. A related recall (19V856000) covers a PCV valve that can separate and damage the engine.

Engine complaints: 51; 12% of 441
Crashes reported: 2
Fires reported: 2
Injuries reported: 1
Median mileage: 11,841 mi
Related recalls: 1

Typical engine symptoms owners report

Owners describe the PCV valve breaking apart, causing sudden power loss and heavy smoke from the tailpipe while driving at highway speed.
Some report the engine surging, jerking, or pulsing when holding a steady 20-35 mph or under light acceleration.
Several describe a raw gas smell entering the cabin through the vents at idle or after parking in the garage, along with reduced fuel economy.
Some report white smoke smelling like burned plastic or oil at startup that dealers could not replicate or resolve.
A few describe the vehicle stalling at low speed after an abnormal noise, with the issue traced by a dealer to the overhead unit.
One owner reported the check engine light coming on suddenly on the freeway along with EyeSight shutting off and the car unable to exceed 60 mph.

When 2019 Subaru Ascent engine complaints were filed

First complaint Oct 11, 2018, latest Mar 24, 2026.

51 complaints filed with NHTSA from Oct 2018 to Mar 2026; peak Jun 2021 (3).

Engine recalls for the 2019 Subaru Ascent

NHTSA 19V856000Dec 2, 2019Engine51,613 vehicles
Engine and engine cooling:exhaust system:emission control:crankcase (pcv)
Subaru of America, Inc. (Subaru) is recalling certain 2019 Crosstrek, Forester, and Ascent vehicles. The aluminum Positive Crankcase Ventilation (PCV) valve can separate, allowing the separated components to enter the engine, resulting in a loss of power while driving.
Risk: An unexpected loss of power while driving can increase the risk of a crash.
Remedy: Subaru will notify owners, and dealers will inspect and replace the PCV valve, free of charge. If the PCV valve has separated and the components cannot be found, the short block engine will be replaced, free of charge. The recall began January 31, 2020. Owners may contact Subaru customer service at 1-844-373-6614. Subaru's number for this recall is WUW-08.

Engine complaints by Ascent model year

Raw complaint counts per model year; newer years have had less time to accumulate complaints.

201951 (12%)
202033 (10%)
202114 (14%)
20229 (16%)
20236 (13%)
20244 (8%)
20253 (20%)

Frequently asked questions

What engine problems are reported on the 2019 Subaru Ascent?: NHTSA received 51 engine-related complaints for the 2019 Ascent, 12% of all complaints filed for that model year. Common patterns include PCV valve failure causing smoke and power loss, engine surging at low speed, and a raw gas smell in the cabin.
Is there a recall for the 2019 Subaru Ascent engine?: Yes. Recall 19V856000, reported December 2, 2019, covers a PCV valve that can separate and let components enter the engine. Subaru dealers inspect and replace the valve free of charge.
At what mileage do 2019 Ascent engine problems usually appear?: The median mileage at failure for engine complaints on the 2019 Ascent is 11,841 miles, based on NHTSA complaint data.
How does the 2019 Ascent's engine complaint rate compare to later years?: The 2019 Ascent had 51 engine complaints (12% share), higher in raw count than 2020's 33 (10% share) and far above 2022 through 2025, which range from 3 to 9 complaints per year.