How to Turn Off the Auto Start-Stop in S90?

[Deanna]

S90 engine auto start-stop can be turned off by pressing the brake pedal. Generally, the engine will automatically shut off after about two seconds. Releasing the brake and pressing the accelerator, or gently turning the steering wheel will restart the engine. Related details are as follows: 1. The Start-Stop system, when the vehicle is in a stopped state (not in park), the engine will pause operation (instead of traditional idling). During this pause, the engine's lubricating oil continues to circulate, maintaining internal lubrication. Upon releasing the brake pedal, the engine restarts, with the lubricant continuously circulating, ensuring no internal wear even with frequent stops and starts. 2. Modern vehicles often use engine start-stop technology. When stationary, the required electrical power is supplied by the AGM battery, and power-intensive systems like air conditioning switch to a fan-only mode. Therefore, if the stationary period is too long, it may affect cooling efficiency or cause stuffiness inside the car, in which case the start-stop system can be manually turned off.

[VanReed]

If you want to turn off the auto start-stop function in your Volvo S90, I can walk you through it step by step. There's usually a round button near the center console marked with the letter A - press it until the light comes on, and the auto start-stop will be temporarily deactivated. You'll need to press it again after each engine start since this feature is designed for fuel efficiency. When I first drove this car, I also found the function annoying in traffic jams as the engine kept restarting frequently, causing noticeable vibrations that affected ride comfort. That said, it's great for the environment by reducing exhaust emissions. If you mainly drive in urban areas, I'd recommend keeping it enabled during daytime but disabling it at night to avoid visual distractions. Also, monitor your battery condition - if the battery is aging, the system may malfunction or trigger more frequent restarts. Regular checks can prevent issues. For permanent deactivation? You'd need professional software reprogramming, but that voids warranty. My advice is to stick with the temporary button solution.

[GageLee]

Owners of the S90 often ask me how to turn off the auto start-stop—it's super common! Just look for the small button with an 'A' on the center console, give it a gentle press, and the screen will confirm it's off. I do this every day during my commute. The start-stop saves fuel by shutting off the engine at red lights, but in winter, the cold starts can be loud, sometimes unreliable, making the car react a bit slow and startling me. Remember, it resets every time you start the car, so don’t forget to press the button. If you're looking to save money, check the battery section in the manual—frequent starts can wear the battery faster, so replacing it periodically is more cost-effective. Can’t find the button? Check the settings menu below the steering wheel on the left—it might also be disabled in the driving mode options, or its location might have changed after a software update.

[DeKarter]

The auto start-stop design of the Volvo S90 is quite clever. If you find it annoying, simply press the A icon button on the center console—the light turns on to indicate it's deactivated. Essentially, this system uses sensors to monitor vehicle status, such as shutting off the engine when you brake to a complete stop, thereby reducing fuel consumption. Turning it off can prevent the jerkiness from frequent restarts, especially making driving smoother in traffic jams. From a technological perspective, it's quite interesting: you can adjust the sensitivity in settings, but usually, the button is more convenient. Permanent deactivation is not recommended as it might violate emission regulations. On a related note, maintaining battery health is crucial—the system automatically shuts off when voltage is low, and regular maintenance can extend its lifespan.