Under normal operating conditions:
* Every 40,000 – 60,000 km or every 2-3 years
Under severe operating conditions (towing, driving in traffic jams, mountainous terrain):
* Every 20,000 – 30,000 km or every year
Note:
* Toyota recommends changing automatic transmission oil every 100,000 km, but this depends on operating conditions.
*Severe operating conditions include:
* Frequent towing
* Driving in traffic jams
* Mountainous terrain
* Extreme temperatures