my Toyota Highlander XU70 (2020-Present) shows low oil pressure warning what should I do

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Ensure the vehicle is parked on a flat surface and the engine is cool.
• Disconnect the battery to prevent any electrical issues.

Tools Required:

• OBD-II scanner
• Socket set
• Torque wrench
• Mechanical oil pressure gauge
• Oil filter wrench

2. Check and Replace Engine Oil

• Step 1: Remove the oil filler cap and check oil level; if low, proceed to add oil.
• Step 2: If oil level is low, drain the old oil if necessary and replace it with the manufacturer-recommended oil (typically 0W-20 for this model).
• Step 3: Replace the oil filter using an oil filter wrench; ensure the rubber gasket is clean and replace the filter with a new one.
• Step 4: Refill the engine with the correct amount of new oil, checking the dipstick periodically.

3. Inspect and Repair Oil Pump

• Step 1: Remove the engine cover to access the oil pump.
• Step 2: Disconnect any hoses or components obstructing the oil pump.
• Step 3: Remove the oil pump from its mounting using a socket set.
• Step 4: Inspect the oil pump for wear or damage; if defective, replace it with a new pump.
• Step 5: Reinstall the oil pump, torqueing bolts to the manufacturer specifications (refer to service manual for exact torque values).

4. Test and Verify Oil Pressure

• Step 1: Install the mechanical oil pressure gauge in place of the oil pressure switch.
• Step 2: Start the engine and observe the oil pressure reading; it should meet manufacturer specifications.
• Step 3: If readings are low after replacing oil and pump, further investigation of engine internals may be required.