Automatic transmissions generally require about 7.5–9 quarts in total, while manuals take about 2.3–2.8 quarts.
The Scion tC was produced with two main transmission options across its generations, and fluid capacity varies by year. Below is a breakdown by type to help you estimate how much fluid you’ll need for a drain/fill or a full system flush.
Transmission options in the Scion tC
Automatic transmission
Before listing the capacity, note that the automatic version of the tC includes the fluid in the torque converter as part of the total capacity, and the exact amount depends on the specific automatic transmission version used in a given year (the tC used different automatic transaxles over its production).
- Total capacity: approximately 7.5–9 quarts (varies by year and transmission variant).
When servicing, a drain-and-fill typically replaces about 3–4 quarts of fluid, while a complete flush can require up to the full capacity depending on the method used.
Manual transmission
Before listing the capacity, keep in mind that the manual gearbox is smaller and does not include a torque converter in its capacity.
- Total capacity: approximately 2.3–2.8 quarts.
During a maintenance drain-and-fill, you can expect to exchange around 2.0–2.5 quarts, depending on the exact year and transmission configuration.
Important notes and verification
Because the tC spanned multiple years with different gearbox options, the precise capacity can vary. Always confirm the exact specification for your model year and transmission type using the owner's manual or the factory service data. If you’re performing a transmission service, decide between a drain-and-fill or a full flush, as that changes the total amount of fluid required.
Summary
For most Scion tC models, the rule of thumb is: automatic transmissions typically use about 7.5–9 quarts in total, and manual transmissions use about 2.3–2.8 quarts. Always verify the exact figure for your year and transmission type to ensure a proper fill.