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Data source: National Highway Traffic Safety Administration

  1. Home
  2. >Subaru
  3. >Ascent
  4. >2021
  5. >Powertrain

2021 Subaru Ascent Powertrain Problems

Powertrain complaints and recalls from NHTSA

Summary

The 2021 Subaru Ascent has 14 NHTSA powertrain complaints and 0 powertrain-related recalls.

Problem Areas for the 2021 Subaru Ascent

Electrical
17
Visibility
17
Other
15
Powertrain
14
Brakes
7
Steering
7
Engine
4
Structure
4

14

Complaints

0

Recalls

0

Injuries Reported

Data source: National Highway Traffic Safety Administration (NHTSA) · Last updated April 10, 2026

All Powertrain Complaints

Date ↓ComponentSummary
Mar 24, 2026POWER TRAIN,UNKNOWN OR OTHERIssue 1: Complete transmission failure was diagnosed by Subaru dealer March 24, 2026 at 5 years an...
Oct 31, 2025POWER TRAINThe transmission/CVT component on the vehicle, 2021 Subaru Ascent is malfunctioning. When being dri...
Jul 21, 2025POWER TRAINThe contact owns a 2021 Subaru Ascent. The contact stated while driving 65 MPH and attempting to acc...
Jun 13, 2025POWER TRAINOn Friday, June 13, 2025, while (thankfully) in my driveway, the transmission broke on my 2021 Subar...
May 3, 2025POWER TRAINEvery time I go out of park there is a massive clubking noise from under the car. It's actually a su...
Jan 1, 2025POWER TRAINTransmission needed to replaced at around 50k miles. Sister in law has the same year and her transmi...
Jul 27, 2023POWER TRAINCar has always refused to accelerate if gas pedal is pushed down too quickly. Just before 60K miles,...
Apr 4, 2023POWER TRAIN,ENGINEThe transmission of my 2021 Ascent regularly slips or shutters when trying to accelerate time to tim...
Sep 10, 2022POWER TRAINCar purchased in August 2021 new. In May 2022, the car had hesitation problems when traveling betwe...
Jul 13, 2022POWER TRAINI have a 2021 Subaru Ascent Premium with 6,000 miles. The Transmission or CVT feels odd every time i...
Jun 26, 2022POWER TRAINVehicle will jerk and shudder when accelerating and de-accelerating. Mostly between 15mph and 30mph....
Apr 19, 2022POWER TRAINThe Transmission on the vehicle was exhibiting excessive noise when shifting from park to drive and ...
Apr 1, 2022POWER TRAINFirst transmission was replaced after months of trying to get the issue diagnosed. Symptoms included...
Sep 15, 2021POWER TRAINWhen operating the 2021 Ascent, I experience intermittent problems at various shift-points in the CV...

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