C0279 moderate

Brake Caliper Slide Pin Seized

The C0279 code means the vehicle's onboard diagnostic system has detected: Brake Caliper Slide Pin Seized. This is a moderate severity code.

My Garage →

Keep driving?: Short distances only
DIY difficulty: moderate
Estimated cost: $50 - $300 (parts and labor)

Read ABS Codes

BlueDriver Bluetooth Pro Scanner

Basic scanners cannot read ABS codes. BlueDriver reads all systems including ABS, SRS, and transmission through your phone.

Check Price on Amazon

Affiliate link -- we earn a commission at no extra cost to you.

Read ABS Codes

LAUNCH CRP123X (Reads ABS + Chassis)

Basic scanners cannot read ABS codes. This one reads all four systems so you know exactly which sensor failed.

Check Price on Amazon

Affiliate link -- we earn a commission at no extra cost to you.

Common Symptoms

Vehicle pulls to one side during braking
Uneven brake pad wear
Burning smell from one wheel area
One wheel hotter than others after driving
Brake dragging on one corner

Probable Causes (Ranked by Likelihood)

Corroded or seized caliper slide pins Very High
Dry or degraded slide pin boots High
Contaminated slide pin grease Moderate
Damaged caliper bracket bore Low

Step-by-Step Diagnostic Procedure

Check each wheel for excessive heat after driving
Remove caliper and check slide pin movement
Inspect slide pin boots for tears or cracking
Compare brake pad wear between inner and outer pads
Check caliper for free movement on bracket

Frequently Asked Questions

What are caliper slide pins?

Slide pins are metal bolts that allow the brake caliper to float and center itself over the rotor. They slide in and out of rubber boots filled with grease to maintain smooth movement.

How often should slide pins be lubricated?

Slide pins should be cleaned, inspected, and re-greased every time brake pads are replaced. Many technicians recommend checking them during every brake inspection.

Can seized slide pins damage other components?

Yes. A seized pin causes the caliper to apply unevenly, leading to accelerated pad wear on one side, rotor warping from heat buildup, and potential wheel bearing damage from excess heat.