why does my Toyota Highlander XU70 (2020-Present) have a delayed response when shifting gears

Solution

1. Preparation

• Gather all necessary tools and parts 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. Check and Replace Transmission Fluid

1. Locate the transmission dipstick and remove it to check fluid level.
2. If the fluid is low or contaminated, drain the transmission fluid using a drain pan.
3. Replace the transmission filter if applicable by removing the transmission pan.
4. Refill the transmission with the recommended type and quantity of fluid (refer to the owner's manual for specifications).

3. Inspect and Replace Throttle Position Sensor (if faulty)

1. Locate the throttle position sensor (TPS) on the throttle body.
2. Disconnect the electrical connector from the TPS.
3. Remove the TPS using the appropriate socket or wrench.
4. Install the new TPS, ensuring it is aligned correctly.
5. Reconnect the electrical connector and verify the installation.

4. Update Transmission Control Module (if necessary)

1. Connect an OBD-II scanner to the vehicle's diagnostic port.
2. Check for available software updates for the TCM.
3. Follow the scanner prompts to update the TCM software as needed.