Experiencing trouble starting your 2011 Nissan Murano can be frustrating, especially when it occurs intermittently. Many owners might immediately suspect issues with the car battery, alternator, or starter motor. However, sometimes the culprit can be less obvious, potentially even related to your key fob. Let’s explore a common scenario where a 2011 Murano owner faced puzzling starting problems and how the key fob battery became a point of investigation.
One owner of a used 2011 Nissan Murano, after verifying the car battery and starter were in good condition, still encountered inconsistent starting. Approximately two out of five attempts would result in the vehicle failing to start. Initially, a mechanic replaced the starter motor, but the issue soon returned. In a process of elimination, the owner decided to replace the 2011 Murano Key Fob Battery, even though the old battery surprisingly still measured a nominal 3V.
Interestingly, changing the key fob battery seemed to temporarily resolve the starting problem for a few days. The vehicle started more reliably, but the relief was short-lived. The intermittent starting issue resurfaced, accompanied by a feeling that the engine was cranking for longer than usual before starting, even when it did start. This situation highlights a perplexing problem: if the car battery, alternator, starter, and even the key fob battery appear to be functioning, what could be causing these sporadic starting failures in a 2011 Nissan Murano?
It’s important to consider that even if a key fob battery reads 3V, it might still be weak or have an inconsistent output under load. The electronic systems in modern vehicles, like the 2011 Murano, are sensitive to voltage fluctuations. A marginally weak 2011 Murano key fob battery could potentially cause communication glitches between the key fob and the vehicle’s immobilizer system. This system is designed to prevent theft by ensuring only authorized keys can start the car. If the signal from the key fob is weak or unreliable due to a borderline battery, it might intermittently fail to disengage the immobilizer, leading to a no-start condition.
Furthermore, the owner also mentioned an issue with the automatic trunk gate not latching consistently via the key fob or dashboard button, sometimes requiring manual closure. This seemingly unrelated problem could be another symptom pointing towards potential electrical or electronic control issues, possibly even stemming from a low power supply or signal integrity related to the key fob system.
While replacing the 2011 Murano key fob battery might sometimes offer a temporary fix, persistent starting problems warrant a more thorough diagnosis. If you are experiencing similar issues with your 2011 Nissan Murano, it’s advisable to consult a qualified mechanic to investigate potential issues within the immobilizer system, key fob signal reception, or other underlying electrical problems beyond just the commonly suspected components.
