P0128 on CHRYSLER 200 — Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)

Q: "What does P0128 mean on a CHRYSLER 200?"

"P0128 indicates: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature). This is a fuel and air metering code. 4 CHRYSLER 200 owners have reported this to NHTSA."

Q: "What are the most common causes of P0128 on CHRYSLER 200?"

"Based on 4 NHTSA reports, the most commonly cited components are: Power Train, Vehicle Speed Control,Electronic Stability Control (Esc), Electronic Stability Control (Esc),Engine. These percentages are based on the component field in owner complaints."

Q: "Is P0128 serious on my CHRYSLER 200?"

"Of 4 NHTSA reports for this code on CHRYSLER 200, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic."

Q: "What should I do if my CHRYSLER 200 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 CHRYSLER 200

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.

4 CHRYSLER 200 owners have reported this issue to NHTSA across model years 2014-2015. Most reports come from the 2015, 2014 model years.

Real CHRYSLER 200 Owner Reports

Source: NHTSA Complaints Database

"Transmission FAIL check engine light went on. Car was not accellorating, bucking can't drive over 30 MGH. Thank god I was drving a back street when it happened and not the Mass Pike. Two estimates done. They both said replace the transmission."

— 2014 CHRYSLER 200 owner · POWER TRAIN · Filed 02/15/2023

"Vehicle is reporting p0128 and p2181 error codes. while driving, vehicle gives an error message that says service electronic throttle control and sounds like it is running really loud. when i turn off the vehicle and turn it back on, the warning goes away and it sounds normal again."

— 2015 CHRYSLER 200 owner · VEHICLE SPEED CONTROL,ELECTRONIC STABILITY CONTROL (ESC) · Filed 01/01/2017

"A few days ago the check engine light came on and according to the manual it was not serious but if continued, to have the code checked. i had not had the opportunity to go, but all seemed to be running normally."

— 2015 CHRYSLER 200 owner · ELECTRONIC STABILITY CONTROL (ESC),ENGINE · Filed 12/13/2017

"First engine light come up then car started to overheat. coolant temp. 185 and car overheat. panel read engine temperature too hot .. i cannot drive the car because this problem code p0128(thermostats) and p2181(coolant system) came up."

— 2015 CHRYSLER 200 owner · ENGINE · Filed 12/24/2016

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

📊 Complaint Trend by Model Year

1

'14

3

'15

Common Causes on CHRYSLER 200

Based on NHTSA complaint component analysis for this vehicle.

POWER TRAIN 25%

VEHICLE SPEED CONTROL,ELECTRONIC STABILITY CONTROL (ESC) 25%

ELECTRONIC STABILITY CONTROL (ESC),ENGINE 25%

ENGINE 25%

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 CHRYSLER 200? ▾

P0128 indicates: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature). This is a fuel and air metering code. 4 CHRYSLER 200 owners have reported this to NHTSA.

What are the most common causes of P0128 on CHRYSLER 200? ▾

Based on 4 NHTSA reports, the most commonly cited components are: Power Train, Vehicle Speed Control,Electronic Stability Control (Esc), Electronic Stability Control (Esc),Engine. These percentages are based on the component field in owner complaints.

Is P0128 serious on my CHRYSLER 200? ▾

Of 4 NHTSA reports for this code on CHRYSLER 200, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic.

What should I do if my CHRYSLER 200 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.