Vehicle Data Hub

2021 Honda Accord engine problems

Owners reported engine problems in 41 complaints for the 2021 Honda Accord, 11% of the complaints on file. It is the 3rd most reported problem area for this model year.

At a glance

Complaints
41 11% of this year's complaints
Crashes and fires
3 and 0
Injuries and deaths
2 and 0

Source: NHTSA owner complaints

What the data shows

These complaints mention 3 crashes, 2 injuries.

What owners wrote

This vehicles have a engineering flaw in the design of the head gasket failing prematurely disabling all components of vehicle at any given time wether it’s in the highway or local the car will basically shut itself down causing a major risk for the driver and civilians even death. This is a safety hazard, tragedy waiting to happen y’all should act now theirs multiple and quiet frankly the Corporation should be taking care of it since they are still allowing them out on the road even with knowledge of this issue…

September 2024 CrashInjury

The contact owns a 2021 Honda Accord. The contact stated that while driving approximately 30 MPH, the message "Emission System Problem" was displayed. The vehicle was taken to the dealer, where it was diagnosed and determined that the turbocharger had failed and needed to be replaced. The contact was informed that the failure was a common issue. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 108,579.

Reported at 108,579 miles, August 2026

Other problems reported for the 2021 Honda Accord

Engine problems in other years

Engine problems across all Honda models