P0711 on KIA OPTIMA
Transmission Fluid Temperature Sensor A Circuit Range/Performance
Methodology: Reviewed against the SAE J2012 generic DTC definition and NHTSA owner-complaint patterns, then scoped to Kia Optima context without treating complaints as confirmed diagnoses.
Sources: SAE/OBD-II definitions, manufacturer service information, and public reliability reports (including NHTSA where applicable).
- SAE J2012 Diagnostic Trouble Code Definitions — Generic diagnostic trouble code definition reference for P0711.
- NHTSA recalls, complaints, and manufacturer communications — Used to check public owner complaint context, recall status, and safety-related manufacturer communications by VIN or vehicle.
Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.
What P0711 Means on Your KIA OPTIMA
P0711 is a diagnostic trouble code indicating: Transmission Fluid Temperature Sensor A Circuit Range/Performance. This code relates to the powertrain, fuel, ignition, emissions, or air-management system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.
Real KIA OPTIMA Owner Reports
Source: NHTSA Complaints Database
"When putting the car in gear, it would jerk really hard like i had hit something. at first it only did it once or twice within a month so it was hard to duplicate. recently it started getting consistent. it would jerk hard when putting it in gear or park."
"While driving on many city streets 0-45mph and interstate 0-70mph service engine light comes on and goes off periodically. when the light is on, car shakes and sputters as transmission gears shift (not engne). appears to be something to do with the transmission."
All reports filed by vehicle owners directly with the U.S. Department of Transportation.
📊 Complaint Trend by Model Year
Common Causes on KIA OPTIMA
Based on NHTSA complaint component analysis for this vehicle.
What To Do Next
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1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
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2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50–$150) pinpoints the root cause before you spend money on parts.
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3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.