U0293 on TOYOTA PRIUS — Lost Communication With Hybrid/EV Powertrain Control Module

Q: "What does U0293 mean on a TOYOTA PRIUS?"

"U0293 indicates: Lost Communication With Hybrid/EV Powertrain Control Module. This is a network communication code. 2 TOYOTA PRIUS owners have reported this to NHTSA."

Q: "What are the most common causes of U0293 on TOYOTA PRIUS?"

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

Q: "Is U0293 serious on my TOYOTA PRIUS?"

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

Q: "What should I do if my TOYOTA PRIUS shows U0293?"

"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 U0293 Means on Your TOYOTA PRIUS

U0293 is a diagnostic trouble code indicating: Lost Communication With Hybrid/EV Powertrain Control Module. This code relates to the network communication system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

2 TOYOTA PRIUS owners have reported this issue to NHTSA across model years 2012-2014. Most reports come from the 2012, 2014 model years. The most commonly reported component is Service Brakes (50.0% of reports).

Real TOYOTA PRIUS Owner Reports

Source: NHTSA Complaints Database

"While driving 60 mph in highway, ABS, traction control and brake lights lit up and vehicle lost its effective braking power. There were no prior warnings prior to this failure. It was a sudden incident. Since it wasn't rush hour, I could safely reduce speed and bring the car to stop."

— 2012 TOYOTA PRIUS owner · SERVICE BRAKES · Filed 10/21/2025

"The prius vehicles covered only by warranty enhancement zjb are suffering the same dangers from brake booster pump failures as those toyota covered safety recalls d0h and k0l."

— 2014 TOYOTA PRIUS owner · VEHICLE SPEED CONTROL,ELECTRONIC STABILITY CONTROL (ESC),SERVICE BRAKES · Filed 09/18/2019

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

📊 Complaint Trend by Model Year

1

'12

1

'14

Common Causes on TOYOTA PRIUS

Based on NHTSA complaint component analysis for this vehicle.

SERVICE BRAKES 50%

VEHICLE SPEED CONTROL,ELECTRONIC STABILITY CONTROL (ESC),SERVICE BRAKES 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 U0293 mean on a TOYOTA PRIUS? ▾

U0293 indicates: Lost Communication With Hybrid/EV Powertrain Control Module. This is a network communication code. 2 TOYOTA PRIUS owners have reported this to NHTSA.

What are the most common causes of U0293 on TOYOTA PRIUS? ▾

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

Is U0293 serious on my TOYOTA PRIUS? ▾

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

What should I do if my TOYOTA PRIUS shows U0293? ▾

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.

U0293 on Other Vehicles

→ All codes reported on TOYOTA PRIUS