* Loss of control: The transmission is responsible for transferring power from the engine to the wheels. A malfunction can cause a loss of power, making it difficult or impossible to accelerate or maintain speed, especially on hills or in traffic. This significantly increases the risk of accidents.
* Sudden shifting problems: Unexpected shifting, or the inability to shift gears, can be unpredictable and dangerous, especially at higher speeds or in busy conditions.
* Fluid leaks: Transmission fluid leaks can cause overheating and eventual transmission failure, leaving you stranded. The leaking fluid can also create a hazard on the road for other drivers.
* Internal damage: Continuing to drive with a bad transmission can cause further, more expensive damage, potentially rendering the car undriveable.
* Complete failure: The transmission could completely seize up while you're driving, leading to a sudden loss of power and potentially a serious accident.
While you might be able to limp along for a short distance, it's best to avoid driving a car with a bad transmission altogether. Have it towed to a mechanic for repair or replacement. The risk of an accident far outweighs the inconvenience of getting it towed.