2014 Chevrolet Tahoe Owner Manual - Page 328

9-70 Driving and Operating power both ITBC and aftermarket controllers to control the trailer brakes at the same time. Tow/Haul is a feature that assists when pulling a heavy trailer or a large or heavy load. See Tow/Haul Mode on page 9-32 for more information. Tow/Haul is designed to be most effective when the vehicle and trailer combined weight is at least 75 percent of the vehicle's Gross Combined Weight Rating (GCWR). See "Weight of the Trailer" earlier in the section. Tow/Haul is most useful under the following driving conditions: . Electric Brake Control Wiring Provisions These wiring provisions are included with the vehicle as part of the trailer wiring package. These provisions are for an electric brake controller. The instrument panel contains blunt cut wires near the data link connector for the trailer brake controller. The harness contains the following wires: . Tow/Haul Mode Dark Blue: Brake Signal to Trailer Connector Red/Black: Battery Light Blue/White: Brake Switch White: Ground ... Pressing this button at the end of the shift lever turns on and off the tow/haul mode. When pulling a heavy trailer or a large or heavy load through rolling terrain. When pulling a heavy trailer or a large or heavy load in stop and go traffic. When pulling a heavy trailer or a large or heavy load in busy parking lots where improved low speed control of the vehicle is desired. . It should be installed by your dealer or a qualified service center. If the vehicle is equipped with an ITBC, the blunt cuts exist, but are not connected further in the harness. If an aftermarket trailer brake controller is installed, the ITBC must be disconnected. Do not This indicator light on the instrument panel cluster comes on when the tow/haul mode is on. .