Experiencing issues with your 2012 Acura Mdx Key Fob? You’re not alone. Many owners encounter problems ranging from unresponsive buttons to complete fob failure. This guide provides insights into common problems, troubleshooting steps, and replacement options for your 2012 Acura MDX key fob.
One common issue is button malfunction. Like many, you might find the unlock button on your 2012 Acura MDX key fob stops working while the lock button continues to function normally. This can be frustrating, especially when trying to quickly access your vehicle.
If you’re considering a replacement 2012 Acura MDX key fob, you have options. Aftermarket fobs are available and often more budget-friendly. However, some users report difficulties with reprogramming aftermarket transmitters. It’s a potential stumbling block, especially if you are familiar with key and fob replacements on other vehicles. Issues with immobilizer chips and laser cut keys are well-known, but reprogramming should ideally be straightforward. If you encounter reprogramming issues with an aftermarket 2012 Acura MDX key fob, the transmitter itself might be the cause.
A practical approach, and often recommended by experts, is to opt for an OEM 2012 Acura MDX key fob. While potentially more expensive upfront, an OEM fob often ensures smoother reprogramming and better long-term reliability. You can then consider transferring the physical key from your old fob to the new OEM casing, saving on expensive key cutting costs. Note that if your physical key sticks out slightly when folded, this is often due to the key hub mechanism itself, not just the case or spring. Replacing the entire metal key component is the only definitive fix for this, which involves professional and potentially costly laser cutting.
Even if your old 2012 Acura MDX key fob has a broken unlock function, it can still be partially useful. For instance, the “panic” button might still operate, and the lock function could remain functional. Some owners keep their old fobs for basic locking purposes, especially for nightly security checks.
When disassembling your 2012 Acura MDX key fob, be aware that the screws holding the swing mechanism are often secured with blue Loctite. This can make disassembly challenging. Attempting to unscrew them forcefully can lead to stripped screws or even shearing them off. Proceed with caution and use appropriate tools.
For aftermarket 2012 Acura MDX key fob options, pay attention to the icons. Some are designed for SUVs with liftgates, while others are for cars with trunks. These variations relate to Acura IEM part numbers: 35111-STX-329 / 35111-STX-326 for complete units and transmitter-only part numbers 72147-STX-A12 / 72147-STX-A32. Ensure you select the correct type for your vehicle’s configuration.
In summary, when dealing with a malfunctioning 2012 Acura MDX key fob, consider both OEM and aftermarket options, be mindful of potential reprogramming challenges with aftermarket versions, and exercise care when disassembling your fob. Choosing an OEM 2012 Acura MDX key fob and potentially swapping the key can be a reliable solution.
