Honda Clarity Alarm Chaos Draining Battery & Starts

Hey there! I actually had a similar issue with my 2018 Honda Insight Hybrid when it hit around 95k km. The symptoms you're describing sound exactly like what I experienced – unusual alarm triggers and those annoying weak starts. Took it to the garage last month, and turns out the main body control module (BCM) wasn't properly communicating with the key fob system. The immobilizer was getting false signals, which made the car think there was an unauthorized start attempt. They had to reprogram the BCM and reset the security system. It wasn't a super serious issue, but definitely needed proper diagnostic equipment to fix it. They also had to update the car's software to the latest version to prevent future communication glitches. Just a heads up – this isn't something you can fix yourself, as it requires dealer-level scanning tools to properly sync everything back up. Make sure whoever works on it has experience with Honda hybrid security systems.

Thanks for sharing this! Had almost the exact same problem with my Clarity. The BCM reprogramming and system reset did the trick for me too. Really glad to hear I wasn't the only one dealing with those frustrating alarm surprises and rough morning starts. Do you remember roughly how much the fix cost you? Also, has everything been running smoothly since the repair, or have you noticed any other quirks?

Hey again! Happy to update you on my Honda Insight experience. The fix was totally worth it, I paid 45€ to get the anti-theft system sorted out, and they did a great job coding it properly for the optical locking system. Since the repair, it's been running like a charm, no more unusual alarms going off or trouble starting in the mornings. Honestly, it's such a relief not having to worry about the car unusually freaking out in parking lots anymore! The BCM is now properly synced with the key fob, and everything's working exactly as it should. Really glad you got yours fixed too! These hybrid security systems can be a bit finicky sometimes, but once they're properly programmed, they're usually good to go. Haven't noticed any other quirks since the fix, it's all been smooth sailing. The mechanic definitely knew what they were doing with the Honda hybrid systems, which made all the difference. How's yours been running since the repair? Pretty amazing how similar our issues were, right?

Thanks for the update! Actually just got back from the mechanic myself. My repair was slightly pricier at 60€, but totally worth every penny. The guy really knew his stuff with Honda hybrids, which was a huge relief after my last disappointing mechanic experience. You're absolutely right about these security systems being finicky. The mechanic walked me through everything they did, reprogramming the BCM, updating the software, and doing a complete system reset. Been about two weeks now, and wow, what a difference! No more heart-stopping alarm surprises or those anxious moments wondering if the car will start properly in the morning. The peace of mind alone is incredible. It's like having a completely different car now. Just goes to show how important it is to find someone who really knows these hybrid systems. Really appreciate you sharing your experience, it helped me feel more confident about getting it fixed!