How to Turn Off the Auto Start-Stop Function in RAV4?
4 Answers
The method to turn off the auto start-stop function in RAV4 is: simply press the button with the letter 'A' inside a circle to deactivate the auto start-stop. Taking the 2020 RAV4 as an example, it belongs to the compact SUV category with body dimensions of: length 4600mm, width 1855mm, height 1680mm, and a wheelbase of 2690mm. The fuel tank capacity is 55 liters. The 2020 RAV4 features a MacPherson strut front suspension and an E-type multi-link rear suspension. It is equipped with a 2.5L naturally aspirated engine, delivering a maximum horsepower of 178PS, a maximum power of 131kW, and a maximum torque of 221Nm, paired with an electronic continuously variable transmission.
My last experience driving the RAV4: That auto start-stop is really annoying, especially in traffic when the engine keeps restarting. The solution is right near the steering wheel—there's a button on the dashboard with an 'A' inside a circular arrow. You have to press it manually every time you start the car. Remember, the dashboard will show a yellow light or display a 'Start-Stop Off' message. Unfortunately, it can't be permanently disabled. I specifically asked at the dealership, and they said it's required by regulations to keep the function. Now I’ve developed the habit of turning it off right after starting the car. I also installed a voltage stabilizer in the garage to help, and as a result, the battery life extended by over six months. Many people don’t realize how much wear and tear frequent start-stop cycles put on the starter motor.
Three-Year Summary of RAV4 Auto Start-Stop Deactivation Tips: The auto start-stop function essentially operates via the 12V battery sensor. To deactivate it, locate the physical button marked with 'A OFF' on the left side of the gear lever. Press it immediately after engine startup until the dashboard indicator turns yellow. I've found it most crucial to disable this feature when running AC in hot weather, as frequent compressor shutdowns are particularly uncomfortable. However, remember to always deactivate auto start-stop before wading through water - accidental engine restart after water ingestion could cause significant damage. Some friends attempted disconnecting the battery sensor harness, but this may trigger fault codes; the manual button remains the most reliable method. Monthly checks for start-stop system abnormalities are recommended, as battery aging exacerbates this function's instability.
Teach new car owners how to quickly disable the RAV4's auto start-stop: Look for the button with a circular arrow on the right side of the steering wheel, usually located below the center console air conditioning panel. Start the vehicle without pressing the accelerator and simply press this button; a yellow auto start-stop disabled icon will appear on the dashboard. Special attention is needed as modifications like installing audio systems or additional devices may disrupt the auto start-stop system—I once experienced a malfunction after installing a dash cam. It's highly recommended to turn off this feature during rainy or snowy weather to avoid power interruption on slippery roads. Although the manufacturer's manual claims this function can save 8% fuel, in stop-and-go traffic conditions, it actually drains the battery more.
