U3003 on HONDA CR-V — Battery Voltage

Q: "What does U3003 mean on a HONDA CR-V?"

"U3003 indicates: Battery Voltage. This is a network manufacturer-specific code. 2 HONDA CR-V owners have reported this to NHTSA."

Q: "What are the most common causes of U3003 on HONDA CR-V?"

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

Q: "Is U3003 serious on my HONDA CR-V?"

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

Q: "What should I do if my HONDA CR-V shows U3003?"

"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 U3003 Means on Your HONDA CR-V

U3003 is a diagnostic trouble code indicating: Battery Voltage. This code relates to the network manufacturer-specific system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

2 HONDA CR-V owners have reported this issue to NHTSA across model years 2018. Most reports come from the 2018 model year. The most commonly reported component is Electrical System,Forward Collision Avoidance (50.0% of reports).

Real HONDA CR-V Owner Reports

Source: NHTSA Complaints Database

"Car was not able to shift into lower gears. Car would not accelerate when put in drive and drive did not illuminate on the dash. Gearshift was slipping between neutral and drive. mechanic got code of U3003–16. And U 04168."

— 2018 HONDA CR-V owner · ELECTRICAL SYSTEM,FORWARD COLLISION AVOIDANCE · Filed 04/18/2025

"2018 cr-v (~38,200 miles) unexpectedly halted (loss of power - engine kept running) going ~35 mph on lakeville hwy/116 in busy traffic and showed engine/emissions check light and other warning lights."

— 2018 HONDA CR-V owner · POWER TRAIN · Filed 07/29/2020

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

📊 Complaint Trend by Model Year

2

'18

Common Causes on HONDA CR-V

Based on NHTSA complaint component analysis for this vehicle.

ELECTRICAL SYSTEM,FORWARD COLLISION AVOIDANCE 50%

POWER TRAIN 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 U3003 mean on a HONDA CR-V? ▾

U3003 indicates: Battery Voltage. This is a network manufacturer-specific code. 2 HONDA CR-V owners have reported this to NHTSA.

What are the most common causes of U3003 on HONDA CR-V? ▾

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

Is U3003 serious on my HONDA CR-V? ▾

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

What should I do if my HONDA CR-V shows U3003? ▾

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.