What is the wrench under the steering wheel for?
4 Answers
The wrench under the steering wheel is used to adjust the height of the steering wheel up and down. Precautions for using the steering wheel include: 1. Do not turn the steering wheel too forcefully or make sudden movements; avoid turning the steering wheel when the vehicle is stationary. 2. When driving on bumpy roads, hold the steering wheel firmly with both hands to prevent loss of control and potential accidents. 3. Reduce speed when turning. 4. When entering a curve, gradually turn the steering wheel according to the curve's radius. The function of the steering wheel is to convert the force applied by the driver on the steering wheel's edge into torque, which is then transmitted to the steering shaft. The working principle of the car's steering wheel is to transmit torque to the rack-and-pinion mechanism, thereby enabling the wheels to turn left or right.
When I first started driving, I was also curious about that lever under the steering wheel. Actually, it's the switch for adjusting the steering wheel position. Before every long drive, I pull it open and then use both hands to move the steering wheel up, down, forward, or backward to find the most comfortable arm angle. A special reminder: make sure the car is completely stopped when adjusting, and remember to tighten the lever after adjustment. Once, I forgot to lock it properly, and the steering wheel suddenly dropped while driving—it scared me to death. Nowadays, new cars mostly have electric adjustment, but older vehicles typically use this mechanical lever design, which is also what you’ll find in driving school cars.
Just helped my neighbor adjust this last week. That lever is the unlocking device for steering wheel position adjustment. When you pull it downward, you'll hear a click, at which point the steering wheel can be pulled forward/backward or pushed up/down. Remember to push it back into place after adjustment. Experienced drivers might also share a tip: Position the wheel so your wrists naturally rest on the top edge for optimal comfort. If the lever gets stuck, don't force it—it's likely due to a rusty spring inside. A quick spray of WD-40 lubricant usually solves the issue.
When I first bought the car, I had no idea what this lever was for. Later, I asked the 4S store and learned it was the steering wheel adjustment lock. Try moving it to adjust the steering wheel's height and reach, which is especially useful for taller individuals. I recommend trying it several times in the parking lot to find a position that doesn't cause back pain. Remember to ensure the lever is fully reset after adjustment, otherwise, the steering wheel may wobble while driving, posing a safety hazard.
