P0128 on DODGE CHARGER — Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)

Q: "What does P0128 mean on a DODGE CHARGER?"

"P0128 indicates: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature). This is a fuel and air metering code. 2 DODGE CHARGER owners have reported this to NHTSA."

Q: "What are the most common causes of P0128 on DODGE CHARGER?"

"Based on 2 NHTSA reports, the most commonly cited components are: Electrical System,Electronic Stability Control (Esc),Engine, Engine. These percentages are based on the component field in owner complaints."

Q: "Is P0128 serious on my DODGE CHARGER?"

"Of 2 NHTSA reports for this code on DODGE CHARGER, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic."

Q: "What should I do if my DODGE CHARGER shows P0128?"

"1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare."

What P0128 Means on Your DODGE CHARGER

P0128 is a diagnostic trouble code indicating: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature). This code relates to the fuel and air metering system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

2 DODGE CHARGER owners have reported this issue to NHTSA across model years 2006-2012. Most reports come from the 2006, 2012 model years. The most commonly reported component is Electrical System,Electronic Stability Control (Esc),Engine (50.0% of reports).

Real DODGE CHARGER Owner Reports

Source: NHTSA Complaints Database

"Traveling i-5 at 65 mph when the car lost all power. no response in gas pedal, engine stuttered. pulled off freeway and put it in park and turned the car off. waited for around 10 -20 seconds then restarted the vehicle. then all power and driveability came back."

— 2006 DODGE CHARGER owner · ELECTRICAL SYSTEM,ELECTRONIC STABILITY CONTROL (ESC),ENGINE · Filed 05/22/2020

"Check engine light coming on - after scan, code p0128 appears indicating that the coolant thermostat had a fault. according to service tech, most common solution is to replace engine coolant temperature sensor (ect)."

— 2012 DODGE CHARGER owner · ENGINE · Filed 10/18/2018

All reports filed by vehicle owners directly with the U.S. Department of Transportation.

📊 Complaint Trend by Model Year

1

'06

1

'12

Common Causes on DODGE CHARGER

Based on NHTSA complaint component analysis for this vehicle.

ELECTRICAL SYSTEM,ELECTRONIC STABILITY CONTROL (ESC),ENGINE 50%

ENGINE 50%

What To Do Next

1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
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.
3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.

Frequently Asked Questions

What does P0128 mean on a DODGE CHARGER? ▾

P0128 indicates: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature). This is a fuel and air metering code. 2 DODGE CHARGER owners have reported this to NHTSA.

What are the most common causes of P0128 on DODGE CHARGER? ▾

Based on 2 NHTSA reports, the most commonly cited components are: Electrical System,Electronic Stability Control (Esc),Engine, Engine. These percentages are based on the component field in owner complaints.

Is P0128 serious on my DODGE CHARGER? ▾

Of 2 NHTSA reports for this code on DODGE CHARGER, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic.

What should I do if my DODGE CHARGER shows P0128? ▾

1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare.