TSB: Some 2016 ? 2017 model year Tundra vehicle customers have expressed dissatisfaction with the braking feel of the integrated trailer brake controller. Revised software for the Trailer Brake Control ECU has been developed to provide an alternative trailer braking feel for these customers. APPLICABLE WARRANTY: ? This repair is covered under the Toyota Basic Warranty. This warranty is in effect for 36 months or 36,000 miles, whichever occurs first, from the vehicle?s in-service date. ? Warranty application is limited to occurrence of the specified condition described in this bulletin. NOTE: The Brake Control Relay with Bracket should NOT be replaced as part of the Repair Procedure. NOTE: Only ONE of the Techstream units listed above is required. Software version 12.10.018 or later is required. Additional Techstream units may be ordered by calling Approved Dealer Equipment (ADE) at 1-800-368-6787. NOTE: Additional SSTs may be ordered by calling 1-800-933-8335.
