Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
External Controls - System Operation and Component Description: TCS
The TCS:
- is a momentary contact switch located on the end of the column shift selector lever or on the floor shift selector lever knob.
- engages or disengages the TOW/HAUL feature of the transmission.
- illuminates the TOW/HAUL icon on the IPC.
With the TOW/HAUL feature of the transmission activated, the transmission delays upshifts to reduce the frequency of transmission shifting and provides engine braking to slow the vehicle and assist the driver in controlling the vehicle when descending a hill.
For column shift equipped vehicles pressing the TCS switch a second time activates SPORT mode (if equipped) and the driver can manually shift the transmission to gears 1 through 6 using the SelectShift™ switch located on the selector lever. The TOW/HAUL icon on the IPC is extinguished and the SPORT icon on the IPC illuminates. Pressing the TCS switch a third time resets the system.
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.