1994 Pontiac Trans Sport Owner's Manual - Page 117
1994 Pontiac Trans Sport Manual
Page 117 highlights
Features & Controls If the "TCS" warning light comes on and stays onfor an extended period of time, your vehicle needs service... Traction Control System Warning Light (OPTION: 3800 V6 ENGINE) The "TCS" (Traction Control System) warning light means that the system is not working. The "TCS" warning light may come on if your brakes overheat. This means that your traction control system has temporarily shut down to allow the brakes to cool. (The control system will not shut down while it is actively controlling wheel spin.) When the brakes have cooled down, the "TCS" warning light will go off. Walfunction Indicator Lamp (Service Engine Soon Light) 1 computer monitors operation of your uel, ignition and emission control ,ystems.This light should come on whe:n he ignition is on, but the engine is not ,unning, as a check to show you it is vorking. If it does not come on atall, lave itkxed right away. If it stays on, or t comes on while you are driving, the :omputer is indicating that you havea Jroblem. You should take your vehicle in for service soon. . 116