What Are Control Arms On A Car?

July 14, 2025


Ever wonder what keeps your car stable over bumps, potholes, and sharp turns? The answer—control arms. They’re one of the most important parts of your suspension system, and yet, many drivers don’t know they exist.
 
Let’s break it down. Quick, simple, and easy.



What Is A Control Arm?

 

A control arm is a part of your vehicle’s suspension. It connects the frame of your car to the wheels. Think of it as a hinge that allows your wheels to move up and down while staying aligned with your car’s body.
 
Most vehicles have lower control arms, and some have both upper and lower—especially trucks and SUVs.



What Does A Control Arm Do?

 

Control arms help your car do three main things:
 
1. Stay stable over bumps and dips in the road
2. Keep your tires aligned with the car’s body
3. Absorb vibrations, so your ride stays smooth
 
They work with bushings and ball joints to pivot and flex while you drive.




Symptoms Of A Bad Control Arm

 

Wondering if your control arms are going bad? Look out for these signs:
 

  1. Clunking or banging sounds, especially over bumps
  2. Vibration in the steering wheel
  3. Car pulling to one side
  4. Uneven tire wear
  5. Loose or wandering steering

 

If you notice any of these issues, don’t wait. A failing control arm can make your car unsafe to drive.





Can You Drive With A Bad Control Arm?

 

You can—but you shouldn’t! A worn or broken control arm affects steering, braking, and overall safety. If it breaks completely, you could lose control of your vehicle.

 

 

When Should Control Arms Be Replaced?

 

Control arms don’t need regular replacement like oil or brake pads. But they do need attention when:
 
1. Bushings or
ball joints are worn out

2. The arm is bent or cracked
3. You're having ongoing suspension or
alignment problems





Why Control Arm Repairs Matter

 

Ignoring a bad control arm can lead to:
 
1. Unsafe handling
2. More expensive repairs
3. Faster
tire wear
4. Risk of breakdown or accidents
 
That’s why it’s important to have your suspension inspected by professionals you trust.

 


Need a new control arm? We can help! We can help Lou's Car Care & Fleet Services has been proudly serving Baldwinsville, NY, and surrounding communities since 1976. Call us or schedule your next appointment online today! 


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