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How to turn off auto idle stop Acura TLX?

On most Acura TLX models you can temporarily disable the idle-stop feature by pressing a dedicated button or by toggling a setting in the vehicle’s menus. The change is usually temporary and may reset after certain events, such as the next engine restart. Availability and exact steps vary by model year and trim, so consult your owner’s manual for your specific TLX.


Two common methods to disable idle stop


These two paths cover the primary ways TLX owners typically deactivate idle stop: a physical dash button and a software toggle in the infotainment/vehicle settings. The exact options can differ by year and trim.



  • Physical dash button method: Locate the idle-stop button on the center console or near the dash. It is usually marked with an A inside a circular arrow or labeled “Idle Stop” / “Auto Start-Stop Off.”

  • With the engine running, press the button once to deactivate idle stop for the current trip. The instrument cluster indicator should show that idle stop is off.

  • To re-enable, press the button again, or start a new drive after turning the ignition off and back on, depending on your model year.


Disabling via the dash button is typically temporary and applies to the current driving session; the system may re-engage under certain conditions or after a complete engine cycle.



  • Software/infotainment method: Access the vehicle’s settings through the touchscreen. Navigate to Settings > Vehicle (or Vehicle Settings) > Idle Stop / Auto Start-Stop.

  • Set Idle Stop to Off (or toggle the option off). Some models require confirmation or may display a warning about fuel economy impacts.

  • Save the change and test by stopping and starting the vehicle to confirm the feature remains off for the current trip. Note that not all TLX trims support a permanent, per-vehicle disable.


Some trims may not expose a permanent disable in software. If you don’t see an Idle Stop option, consult the owner’s manual or your dealer for model-specific guidance.


What to expect after disabling idle stop


When idle stop is turned off, the engine typically stays running at traffic signals and low-speed stops, reducing the frequency of auto restarts. The system will usually re-engage under certain conditions, such as battery protection logic, engine temperature changes, or after certain driving cycles. Climate control usage and battery state can also influence when idle-stop reactivates.


Limitations and safety notes


Disabling idle-stop can increase fuel consumption and emissions compared with the factory-default setting. In some jurisdictions, idle-stop behavior is tied to emissions regulations, and the feature may re-enable automatically to comply with standards. The exact behavior depends on your TLX’s year and trim, so verify handling on your specific vehicle.


Summary


Turning off Acura TLX idle-stop usually involves either a physical button on the center console or a software toggle in the vehicle’s settings. The change is generally temporary and may reset after engine restart or certain driving conditions. If you’re unsure whether your model supports a permanent disable, refer to the owner's manual or contact a dealer for model-specific instructions. Always consider fuel economy and emissions implications when disabling idle-stop.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.