QX Hybrid Key Fob Issues: Common Access Problems Solved

Hey there! I have some experience with car repairs and actually faced a really similar issue with my 2013 Infiniti Q50 Hybrid (also had an M37 before). Had the same headache with the comfort access super annoying when you can't rely on your key fob! Turned out the door handle sensor assembly was faulty. Took it to my trusted workshop, and they diagnosed and replaced the defective components. Set me back about 390€, but it's been working flawlessly since then. Which QX model do you have specifically? The systems are pretty similar across the lineup, but knowing the exact model would help me share more relevant details about the fix. Also, are you noticing any specific patterns when it fails, like does it work better in certain weather?

Thanks for sharing that info! Mine's a QX with 69220 KM on the clock, and I just had it serviced last month. The key fob actually works better in dry weather, but gets really finicky when it's damp or cold outside. Interesting that you mentioned the door handle sensor I've noticed sometimes I have to pull the handle multiple times before it responds. Might be dealing with the same issue as you did. Was the repair process complicated, or was it a pretty straightforward fix at your workshop?

Hey again! Yeah, that weather-related behavior sounds exactly like what I experienced with my Q50. When you mentioned the multiple handle pulls, it really clicked that's exactly how mine acted before I got it fixed! The repair itself was pretty straightforward at my workshop. They initially tested the door handle sensors and the key fob signal to pinpoint the exact issue. The actual replacement only took about an hour or so. In my case, moisture had gotten into the sensor assembly over time, which explains why it acted up more in wet weather. Since you mentioned your mileage (69220 KM), it's about the same timeframe when mine started acting up too. I was around 75000 KM when I had mine fixed. These Infiniti door sensors seem to have a pretty predictable lifespan, from what my mechanic told me. Quick tip before you go in for repairs, you might want to check if all doors are having the same issue or if it's just the driver's side. In my case, it was mainly the driver's door, which helped narrow down the problem. The passenger doors were still working fine. Let me know how it goes! The fix completely solved the problem for me, and I haven't had any issues since then. Been about 18 months now, working perfectly even in rainy weather.

Thanks so much for all the detailed info! You're right I just checked and it's mainly my driver's side door giving me trouble, while the others work fine most of the time. That's super helpful to know about the typical lifespan of these sensors too. Think I'll take it to my mechanic next week and specifically mention the door handle sensor issue. The price you mentioned seems reasonable for the peace of mind of having it working properly again. Really appreciate you taking the time to share your experience it's definitely made me feel better about getting this sorted! I'll update the thread once I get it fixed in case anyone else runs into the same problem.