Potential negative consequences of towing a vehicle with an automatic transmission (AT) without proper safety precautions include:
*Transmission Damage: The automatic transmission operates using hydraulic pressure to transmit power through planetary gears. Towing a vehicle without the engine running disconnects the transmission pump, creating a lack of pressure that can damage internal components.
*Transmission overheating: When towing on the rear wheels, the transmission input shaft rotates, but the pump does not operate. This can lead to overheating due to lack of lubrication and cooling.
* Damage to the differential: On some vehicle models, the automatic transmission also contains a differential, which can be damaged as a result of being towed on the rear wheels.
Recommendations for minimizing risks:
Before towing:
*Check your vehicle’s owner’s manual to determine the correct towing method.
*If possible, use a tow platform or four-wheel drive system.
* Disconnect the driveshaft or lock it in neutral.
* Align the car’s wheels parallel to the road.
While towing:
* Tow the shortest distances and at the lowest speed.
* Avoid sudden turns or changes in speed.
* Check transmission temperature and take breaks if it gets too high.
After towing:
*Allow the transmission to cool before driving.
* Check the fluid level and add if necessary.
* Take the vehicle to a service center to check for damage.
Additional tips:
* Use a good quality tow rope and fasten it securely.
* The driver of the towed vehicle must keep their foot on the brake pedal to prevent rolling backwards.
* Tow the vehicle in a well-ventilated area.
*Follow all manufacturer’s towing instructions.