U3003 on Honda Cr-V
Battery Voltage
Methodology: Reviewed against the SAE J2012 generic DTC definition and NHTSA owner-complaint patterns, then scoped to Honda Cr-V context without treating complaints as confirmed diagnoses.
Sources: SAE/OBD-II definitions, manufacturer service information, and public reliability reports (including NHTSA where applicable).
- SAE J2012 Diagnostic Trouble Code Definitions — Generic diagnostic trouble code definition reference for U3003.
- NHTSA recalls, complaints, and manufacturer communications — Used to check public owner complaint context, recall status, and safety-related manufacturer communications by VIN or vehicle.
Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.
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.
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 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."
All reports filed by vehicle owners directly with the U.S. Department of Transportation.
📊 Complaint Trend by Model Year
Common Causes on Honda Cr-V
Based on NHTSA complaint component analysis for this vehicle.
What To Do Next
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1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
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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.
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3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.