2020 Toyota Corolla Transmission & Power Train Problems
NHTSA component category: POWER TRAIN · data through 07/12/2026
Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
How power train ranks on this vehicle
Share of the 300 complaints citing each category; one complaint can cite several. Full breakdown on the 2020 Toyota Corolla overview page.
What owners report
“1. First problem I had with my 2020 Toyota Corolla Hatchback SE: SAFETY RECALL 20TA07 (Backup LampsMay Become Inoperative) - 10.29.2020 2. Second problem was…”NHTSA complaint 11496954 — filed 12/11/2022
“My vehicle has 20k miles on it and during acceleration, the CVT would not upshift was bouncing off the rev limiter. I had no controls…”NHTSA complaint 11472227 — filed 07/03/2022
“Transmission stuttering at steady speed more pronounced on inclines. Violent skipping or slipping on acceleration”NHTSA complaint 11423282 — filed 07/02/2021
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Power Train complaints by year filed
Frequently asked questions
Does the 2020 Toyota Corolla have transmission & power train problems?
Power Train is the #3 most-reported problem area on the 2020 Toyota Corolla: 34 of 300 complaints on file (11.3%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2020 Toyota Corolla have in total?
300 complaints were on file with NHTSA as of 07/12/2026. Across all categories, 22 involved a crash, 1 involved a fire, 23 reported injuries, and 1 reported deaths.
What does NHTSA's power train category include?
NHTSA groups complaints about the transmission (automatic or manual), driveline, axles, transfer case and related parts under a single component category called POWER TRAIN. This page reports that category as NHTSA defines it.
