Harsh Gear Shifts in Toyota Tacoma 2020
The vehicle experiences harsh gear shifts during every shift, which may indicate a transmission or related control system issue rather than a direct brake or steering problem. However, brake or steering symptoms could be related to drivetrain or electronic control issues.
Diagnosis Details
Possible Causes
Low or contaminated transmission fluid
Faulty transmission control module (TCM) or software issue
Worn or damaged transmission solenoids or valve body
Related OBD-II Codes
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What You Should Do
Check transmission fluid level and condition.
If low or dirty, perform a fluid change.
Scan for diagnostic trouble codes (DTCs) related to transmission.
If no codes, consider a TCM reprogramming or inspection of solenoids/valve body by a professional.
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.