U0121 on DODGE CHARGER
What U0121 Means on Your DODGE CHARGER
Real DODGE CHARGER Owner Reports (Source: NHTSA Complaints Database)
"Speedometer quit working, car jumps hard into reverse and drive, will not shift out of first gear, code u0100, u1120, u0121, u0103, replaced computer and had no change of condition, no transmission dipstick to check fluid, a must take to dealer item that is not sensible."
"While driving i-405n at approx 63mph, my cel & tc lamp illuminated and car stalled out leaving me with no steering functions, then suddenly it turned back on and red-lined for almost 20secs straight leaving me at wot speeding straight towards the vehicle in front of me."
Data from NHTSA Vehicle Complaints Database. All reports are filed by vehicle owners directly with the U.S. Department of Transportation.
Common Causes of U0121 on DODGE CHARGER
Percentages based on NHTSA complaint component analysis for this vehicle.
Complaint Trend by Year
What To Do Next
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1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if your vehicle is covered.
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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.