Harsh Gear Shifts in 2019 Honda Civic
The vehicle experiences harsh or abrupt gear shifts during every transmission shift. This is typically a transmission-related issue, not a direct brake or steering problem, though it may affect drivability and safety.
Diagnosis Details
Possible Causes
Low or contaminated automatic transmission fluid (ATF) level or condition
Faulty transmission control module (TCM) or solenoid issues
Worn transmission internal components or valve body problems
Related OBD-II Codes
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What You Should Do
Check transmission fluid level and condition first.
If low or burnt, perform a fluid change or top-up.
If fluid is fine, have a professional scan for transmission-related diagnostic trouble codes and inspect the TCM, solenoids, and valve body.
Related Repairs
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Disclaimer: This AI-generated diagnosis is for informational reference only. Always consult a qualified mechanic for an in-person inspection. AutOwner is not responsible for decisions made based on this information.