Technical Service Bulletin T-TT-0668-21 — 2021 TOYOTA RAV4
ELECTRICAL SYSTEM
Bulletin Details
| TSB ID | T-TT-0668-21 |
| Manufacturer | |
| Vehicle | 2021 TOYOTA RAV4 |
| Component | ELECTRICAL SYSTEM |
| Communication Date |
Bulletin Summary
TT: Some vehicles may exhibit seat memory switch function inoperative condition if the Seating Position Control ECU is not initialized. The Pre-Delivery Service (PDS) bulletin (link below) instructs technicians to perform this initialization after the D/C Cut Fuse is installed. The Repair Manual (links below) states that when any of the following conditions are met, the seat position information in the position control ECU assembly will be cleared: ?The power switch is turned off with any of the seat switches being operated and the ECU-DCC NO.2 fuse removed. ?The power switch is turned off within 1 second of any of the seat switches being operated with the ECU-DCC NO.2 fuse removed. ?Power supplied to the position control ECU assembly is cut while the seat is moving to the memorized position.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
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