Experiencing issues with your Acura Mdx Key Fob? You’re not alone. Many Acura owners encounter problems ranging from dead batteries to malfunctioning buttons. This guide dives into common Acura MDX key fob problems, explores aftermarket alternatives, and offers insights based on real-world experience to help you find the best solution.
Aftermarket vs. OEM Acura MDX Key Fobs: A User’s Perspective
Considering an aftermarket key fob to save money? It’s a tempting option, and you can indeed find them for significantly less than genuine Acura parts. One user opted for an aftermarket fob priced around $40. While functionally similar, they noted subtle differences like a slightly textured case and the absence of the Acura logo.
However, the experience took a turn when reprogramming became an issue. Despite successfully replacing keys and fobs on other vehicles in the past, reprogramming this aftermarket Acura MDX key fob proved challenging. The user suspects the aftermarket transmitter might be the culprit, especially since the original, albeit partially broken, fob still functioned. This experience echoes the advice of experts who often recommend sticking with Original Equipment Manufacturer (OEM) fobs for optimal compatibility and reliability. While aftermarket options can seem appealing, the potential for reprogramming headaches might outweigh the initial cost savings.
Addressing Common Acura MDX Key Fob Issues
Beyond reprogramming, Acura MDX key fobs can suffer from mechanical issues. One common problem is a key that sticks out slightly when the fob is closed. This isn’t due to a faulty case or spring, but rather an inherent design aspect of the key hub itself. Unfortunately, the only permanent fix for this is replacing the entire metal key portion, which can be surprisingly expensive due to the laser cutting required, even if the key blanks themselves are relatively inexpensive.
Another user cleverly repurposed their old, partially broken OEM fob. While the unlock function was failing, the lock button still worked. They initially intended to use it solely for unlocking and locking, but discovered a limitation: the “open power gate” function, crucial for many SUV owners, only works when the vehicle is unlocked. The “panic” button remained functional, but offered little practical value. Despite these limitations, the working lock button still provides a nightly security measure, kept inside the house for conveniently locking all vehicles.
DIY Key Fob Repair and Hidden Complications
Attempting to repair your Acura MDX key fob yourself? Be prepared for potential complications. Even seemingly simple tasks like disassembling the fob can present challenges. The screws holding the swing mechanism on OEM Acura keys are often secured with blue Loctite. This strong threadlocker can cause screws to shear or strip during removal. In one instance, a screw sheared in two, and another stripped completely, requiring extra effort to restore functionality to the swing mechanism. This highlights that even DIY repairs can involve unexpected hurdles and may require more than just basic tools.
When considering aftermarket transmitters, be aware of variations. Some are designed for SUVs and feature a liftgate icon, while others are intended for cars and display a trunk icon. These variations correspond to Acura IEM part numbers: 35111-STX-329 / 35111-STX-326. For transmitter-only replacements, the part numbers are 72147-STX-A12 / 72147-STX-A32. Understanding these nuances can help you select the correct replacement part.
Ultimately, dealing with Acura MDX key fob issues can be frustrating. Weighing the pros and cons of aftermarket versus OEM, understanding potential repair complications, and being aware of part variations are crucial steps in finding the right solution for your needs.
