Toyota 30CA4200.cuw Transmission Calibration
A catalog reference for Toyota calibration 30CA4200.cuw and its Sequoia and Tundra service bulletin context.
30CA4200.cuw is a Toyota transmission-control calibration associated with software that manages automatic transmission shifting. The controller uses operating conditions such as vehicle speed, engine load and driver input to decide when to change gears. Its calibration affects how the vehicle responds during acceleration and cruising.
The association with transmission control is tentative. The supplied records identify 30CA4200 as an updated calibration but do not include the bulletin descriptions or controller details needed to establish its exact application or the change made by this revision.
Service bulletin context
Toyota bulletin T-SB-0170-09, released June 4, 2009, lists 30CA4200 as an updated calibration within a bulletin covering the 2008 and 2009 Sequoia. T-TCI-3308, released November 13, 2009, also lists it as updated in a bulletin covering the 2008 and 2009 Sequoia and Tundra. Those model lists describe bulletin scope rather than confirmed fitment for every vehicle.
No stock or modified variant label is identified for this file. The available records do not establish a particular shift-quality improvement or other change delivered by 30CA4200.