If you own a Honda CRV, you might have noticed the auto high beam system acting up. Dealing with a Honda CRV auto high beam problem can be frustrating, especially when driving at night. This helpful feature is designed to automatically switch between high and low beams based on surrounding traffic. But when it malfunctions, it can leave you with constantly dim lights or, worse, blind other drivers.
This guide will walk you through the common reasons why this happens. We’ll also provide clear fixes you can often try yourself. Let’s get your automatic high beams working smoothly again.
Honda CRV Auto High Beam Problem
The auto high beam system, part of Honda’s sensing suite, uses a camera mounted behind the windshield. This camera detects the headlights of oncoming cars and the taillights of vehicles ahead. When it senses light, it should automatically dip your high beams to low. Once the road is dark again, it should switch back to high beams.
A problem typically shows up in a few ways. You might find the system refuses to activate the high beams at all, even on a dark road. Conversely, it might keep the high beams on constantly, failing to dim for other cars. Sometimes, the system might flicker erratically or you’ll see a persistent warning message on your dashboard.
Common Causes of Auto High Beam Failure
Figuring out the root cause is the first step to a fix. Here are the most frequent culprits behind your Honda CRV’s auto high beam problem.
1. A Dirty or Obstructed Windshield Camera
The camera sensor is the eyes of the system. Anything blocking its view will confuse it. This is the most common and easiest issue to fix.
- Dirt, bugs, or snow on the outside of the windshield directly in front of the camera.
- A sticker, toll tag, or dashcam mounted too close to the camera’s field of view on the inside.
- Cracks or significant pitting on the windshield in the camera’s line of sight.
- Heavy condensation or fogging on the inside of the windshield.
2. Incorrect System Settings or Driver Error
Sometimes, the issue is simply a setting that got changed. It’s always worth checking these before assuming a mechanical fault.
- The auto high beam function is manually turned off via the stalk switch or infotainment menu.
- The vehicle’s headlight switch is not in the “AUTO” position, which is required for the auto high beams to operate.
- Daytime running lights are on instead of the main headlights, preventing high beam activation.
3. Electrical Glitches and Software Issues
Like any computer-driven system, temporary glitches can occur. These can often be resolved with simple resets.
- A weak car battery can cause various electronic systems to behave strangely, including Honda Sensing features.
- A software bug in the camera or body control module needs a reset or update.
- Problems with a fuse related to the headlight or ADAS system.
4. Physical Damage or Misalignment
If your vehicle has been in an accident or had windshield replacement, physical factors could be at play.
- The camera unit itself is damaged from impact or extreme heat.
- The camera is misaligned or not calibrated correctly after a windshield replacement. This is a critical step often overlooked.
- Faulty wiring or a loose connector to the camera module.
5. Environmental and Road Condition Confusion
The system isn’t perfect and can be tricked by certain situations, which might seem like a problem but is actually a limitation.
- Highly reflective road signs or bright streetlights in urban areas.
- Driving on hilly or curved roads where the camera loses line of sight.
- Inclement weather like heavy rain, fog, or snow can scatter light and confuse the sensor.
Step-by-Step Fixes for Your Honda CRV Auto High Beam
Now that you know the likely causes, here are the fixes you can try, starting from the simplest to the more complex.
Fix 1: Basic Checks and Cleaning
Always start here. This solves a majority of issues.
- Ensure your headlight switch is rotated to the “AUTO” position. The auto high beam icon on the dash should be green when active.
- Check the windshield. Thoroughly clean the outside area in front of the camera (usually behind the rearview mirror). Use proper glass cleaner and a microfiber cloth.
- Inspect the inside. Remove any items stuck to the windshield near the camera housing. Make sure the interior glass is clean and not fogged.
- Verify the feature is on. Pull the turn signal stalk toward you until you see the auto high beam indicator (a headlight icon with an “A”) illuminate on your instrument panel.
Fix 2: Performing a System Reset
This can clear temporary electronic glitches.
- Turn off the auto high beam function using the stalk switch.
- Park your CRV safely and turn the ignition completely off. Open and close the driver’s door to ensure the vehicle enters sleep mode.
- Disconnect the negative terminal of your car battery for about 15 minutes. This performs a hard reset on all control modules. Remember, this may reset your clock and radio presets.
- Reconnect the battery terminal tightly, start the car, and let it idle for a few minutes as systems reboot. Then, test the auto high beams on a dark road.
Fix 3: Checking Fuses and Connections
A visual inspection of fuses and connections can reveal problems.
- Locate your fuse boxes (usually under the hood and on the driver’s side dashboard). Refer to your owner’s manual for the exact location of fuses related to “Headlights,” “H/L,” or “ADAS.”
- Use the fuse puller tool to check the relevant fuses. Look for a broken metal filament inside the clear plastic top.
- If you’re comfortable, you can check the connection to the camera. It’s located behind the rearview mirror. Gently ensure the wiring harness is plugged in securely. Be very careful not to force anything.
Fix 4: Seeking Professional Diagnosis and Calibration
If the simple fixes don’t work, it’s time for professional help. This is especially true after a windshield replacement.
- Explain the issue to your mechanic or Honda dealer. They can connect a diagnostic scanner to read fault codes from the camera and body control modules.
- If the camera is faulty, it will need to be replaced. This is not a typical DIY job.
- Camera calibration is mandatory after replacement or windshield work. This requires a specialized target board and alignment procedure in a shop. The car’s computer needs to relearn the correct camera angles for the system to work accurately.
Preventative Tips and Best Practices
To avoid future Honda CRV auto high beam problems, keep these tips in mind.
- Keep the windshield area in front of the camera consistently clean during regular car washes.
- If you get a new windshield, insist on OEM-quality glass and confirm the shop will perform a dynamic camera calibration drive.
- Be aware of the system’s limitations. In confusing lighting, don’t hesitate to manually override it using the stalk.
- Address any dashboard warning lights related to Honda Sensing or the camera immediately, as they can affect multiple systems.
Dealing with a malfunctioning auto high beam system is important for your safety and others on the road. By following this guide, you can systematically identify and often resolve the Honda CRV auto high beam problem yourself. Start with the simple solutions—cleaning and settings—before moving to resets and professional help. With a clear camera and proper calibration, you can confidently enjoy the convenience of this smart feature once again.
FAQ Section
Why are my Honda CRV auto high beams not working?
The most common reason is a dirty windshield blocking the camera’s view. Other causes include the system being turned off in settings, a need for a system reset, or a required camera calibration after windshield replacement.
How do I reset my Honda auto high beam?
You can try a soft reset by turning the car off and on. For a full reset, disconnect the car battery’s negative terminal for 15 minutes. This clears temporary glitches in the electronic control units.
Where is the auto high beam sensor on a Honda CRV?
The sensor is a small camera mounted on the inside of the windshield, behind the rearview mirror. It’s usually housed in a plastic module that’s attached to the glass.
How much does it cost to fix auto high beams on a CRV?
If it just needs cleaning or a reset, it costs nothing. A professional diagnosis might run $100-$150. Camera calibration can cost $200-$400, and a new camera unit itself can be $600-$800 or more, plus installation.
Can I drive with a faulty auto high beam system?
Yes, you can. You should manually control your high beams using the stalk. The regular low and high beam functions are separate and should still work fine. Just avoid using the automatic setting until it’s repaired.