2021 Hyundai Sonata engine problems
The 2021 Hyundai Sonata has 34 engine complaints filed with NHTSA — 20% of the year's total, and roughly flat versus the prior model year.
34
Engine complaints
20%
Share of year
1
Crash-involved
0
Related recalls
Engine complaints by year
What owners report
“I purchased this vehicle brand new. It is still under factory warranty. It has approximately 14k miles on it. I have followed all recommended maintenance procedures. During a routine maintenance appointment at the dealership (Vancouver Hyundai 6802 NE 40th Street, Vancouver WA 98661) they…”
Common questions
How many engine complaints does the 2021 Hyundai Sonata have?
NHTSA has 34 complaints about the 2021 Hyundai Sonata engine — 20% of all complaints filed for that model year.
Related
Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.
Compiled by Sharon Ben-Moshe, Founder.