Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2012SONIC L4-1.8LREPAIR AND DIAGNOSISBRAKES AND TRACTION CONTROLDISC BRAKE SYSTEMBRAKE ROTOR/DISCSERVICE AND REPAIRREMOVAL AND REPLACEMENT
2012 Chevrolet Sonic L4-1.8L
Removal and Replacement
2012 Chevrolet Sonic L4-1.8LSECTION Removal and Replacement
Front Brake Rotor Replacement (J93, J94)
Special Tools
* CH-41013 - Rotor Resurfacing Kit
* CH-42450-A - Wheel Hub Resurfacing Kit
For equivalent regional tools, refer to Special Tools Tools and Equipment.
Removal Procedure
Warning:
Refer to Brake Dust Warning Brake Dust Warning.
1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle Service and Repair.
2. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation Service and Repair.
Note:
Do not reuse the brake caliper bracket bolts.
3. Remove and discard the brake caliper bracket bolts (1).
Caution:
Support the brake caliper with heavy mechanic wire, or equivalent, whenever it is separated from its mount and the hydraulic flexible brake hose is still connected. Failure to support the caliper in this manner will cause the flexible brake hose to bear the weight of the caliper, which may cause damage to the brake hose and in turn may cause a brake fluid leak.
4. Remove the brake caliper and bracket as an assembly and support with heavy mechanics wire or equivalent.
5. Remove the brake rotor bolt (1).
6. Remove the brake rotor (1).
Installation Procedure
1. If installing a new brake rotor, clean the friction surfaces of the brake rotor with denatured alcohol or equivalent.
2. Using the CH-42450-A - Wheel Hub Resurfacing Kit, thoroughly clean any rust or corrosion from the mating surface of the hub/axle flange.
3. Using the CH-41013 - Rotor Resurfacing Kit, thoroughly clean any rust or corrosion from the mating surface of the rotor to the hub/axle flange.
4. Install the brake rotor (1).
Caution:
Refer to Fastener Caution Fastener Caution.
5. Install the brake rotor bolt (1) and tighten to 9 Nm (80 lb in)
6. Position the brake caliper and bracket assembly over the brake rotor and to the steering knuckle.
Note:
Do not reuse the brake caliper bracket bolts.
7. Install 2 new brake caliper bracket bolts (1) and tighten to 100 Nm (74 lb ft).
8. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation Service and Repair.
9. Burnish the brake pads and rotors. Refer to Brake Pad and Rotor Burnishing Procedures.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.