Toyota Grand Highlander Hybrid (2025) Owner Manual

The recommended maintenance intervals for the 2025 Toyota Grand Highlander Hybrid include an oil change every 5,000 miles or 6 months, whichever comes first. Additionally, it's important to inspect the tire pressure and tread depth monthly, rotate the tires every 5,000 miles, and replace the air filter every 15,000 miles. The brake fluid should be replaced every 30,000 miles, and the hybrid battery coolant should be checked during regular service intervals.

If the hybrid system warning light illuminates on your dashboard, first check for any obvious issues such as low fuel level or electrical problems. Turn off the engine and restart the vehicle to see if the light turns off. If it remains on, consult the owner's manual for specific troubleshooting steps and error codes. It's advisable to visit a qualified Toyota service center for a diagnostic check to ensure the hybrid system is functioning properly.

If your vehicle won't start, start by checking the battery. Ensure that the key fob has a functional battery and is within range. If you hear clicking sounds, the battery may be weak. Try jump-starting the vehicle. If it starts, have the battery tested. If the vehicle still won’t start, it may require professional evaluation of the starter, ignition system, or hybrid components.

To maintain the hybrid battery, ensure that the vehicle is driven regularly, as infrequent use can lead to battery depletion. Keep the battery cooling vents clear of debris and avoid exposing the vehicle to extreme temperatures for prolonged periods. Regular service checks as outlined in the owner's manual will help monitor battery health, and any signs of performance decrease should be addressed by a qualified technician.

The recommended tire pressure for the 2025 Toyota Grand Highlander Hybrid is typically 35 PSI for both the front and rear tires when cold. It's important to check the tire pressure monthly, especially before long trips. The correct tire pressure can usually be found on a sticker located on the driver's side door jamb. Maintaining proper tire pressure ensures optimal fuel efficiency and safety.