why is my Toyota RAV4 XA50 (2019-2024) transmission slipping

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Ensure the vehicle is parked on a level surface and the engine is off.
• Disconnect the battery to prevent electrical shorts.

2. Fluid Replacement

1. Drain the Transmission Fluid

   • Locate the transmission drain plug.
   • Use a socket set to remove the drain plug and allow fluid to drain into a suitable container.
   • Reinstall the drain plug and torque to the manufacturer’s specifications (typically around 25-30 ft-lbs).

2. Replace the Transmission Filter

   • Remove the transmission pan by unscrewing the retaining bolts with a socket set.
   • Carefully lower the pan and clean the sealing surface.
   • Remove the old filter and replace it with a new one, ensuring it is seated properly.

3. Refill Transmission Fluid

   • Use a funnel to add fresh transmission fluid through the dipstick tube or designated fill port.
   • Check the owner’s manual for the correct type of fluid (typically Toyota Genuine ATF WS).
   • Start the engine and let it idle, then shift through all gears to circulate fluid.

3. Electrical Connections and Sensors

1. Inspect Electrical Connections

   • Check all wiring and connectors related to the transmission for signs of wear or damage.
   • Clean and secure any loose connections.

2. Test Transmission Control Module (TCM)

   • If error codes indicate TCM issues, consider testing the module with a multimeter to ensure proper operation.
   • Replace the TCM if it fails any tests.