U0101 on DODGE DART — Lost Communication With TCM

Q: "What does U0101 mean on a DODGE DART?"

"U0101 indicates: Lost Communication With TCM. This is a network communication code. 2 DODGE DART owners have reported this to NHTSA."

Q: "What are the most common causes of U0101 on DODGE DART?"

"Based on 2 NHTSA reports, the most commonly cited components are: Power Train, Power Train,Electrical System. These percentages are based on the component field in owner complaints."

Q: "Is U0101 serious on my DODGE DART?"

"Of 2 NHTSA reports for this code on DODGE DART, 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 DART shows U0101?"

"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 U0101 Means on Your DODGE DART

U0101 is a diagnostic trouble code indicating: Lost Communication With TCM. This code relates to the network communication system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

2 DODGE DART owners have reported this issue to NHTSA across model years 2013-2015. Most reports come from the 2013, 2015 model years. The most commonly reported component is Power Train (50.0% of reports).

Real DODGE DART Owner Reports

Source: NHTSA Complaints Database

"The powertrain control module was reprogrammed and the transmission control module was reprogrammed under warranty on august 29, 2013."

— 2013 DODGE DART owner · POWER TRAIN · Filed 08/25/2018

"I am having an intermittent, no communication with TCM, Active stabiliy control light comes on, the vehicle feels like it pops into neutral jarring the vehicle and once this happens i have code U0101 in PCM,ABS, ESM, BCM,IPC,RFH along with a U11C2 code in the PCM."

— 2015 DODGE DART owner · POWER TRAIN,ELECTRICAL SYSTEM · Filed 04/24/2025

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

📊 Complaint Trend by Model Year

1

'13

1

'15

Common Causes on DODGE DART

Based on NHTSA complaint component analysis for this vehicle.

POWER TRAIN 50%

POWER TRAIN,ELECTRICAL SYSTEM 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 U0101 mean on a DODGE DART? ▾

U0101 indicates: Lost Communication With TCM. This is a network communication code. 2 DODGE DART owners have reported this to NHTSA.

What are the most common causes of U0101 on DODGE DART? ▾

Based on 2 NHTSA reports, the most commonly cited components are: Power Train, Power Train,Electrical System. These percentages are based on the component field in owner complaints.

Is U0101 serious on my DODGE DART? ▾

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

What should I do if my DODGE DART shows U0101? ▾

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.