WARNING: This page is about a different car, the 2019 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.

Application	Specification
Application	Metric	English
Disc Brake Pads - Front and Rear
Maximum Allowable Taper	0.15 mm	0.0059 in
Minimum Friction Material Thickness	2.0 mm	0.078 in
Front Brake Rotor
Diameter	321.0 mm	12.638 in
Discard Thickness*	27.0 mm	1.063 in
Maximum Allowable Assembled Lateral Runout	0.05 mm	0.002 in
Maximum Allowable Scoring	1.50 mm	0.59 in
Maximum Allowable Thickness Variation	.025 mm	0.001 in
Minimum Allowable Thickness After Refinish	28.0 mm	1.102 in
Thickness - New	30.0 mm	1.181 in
Rear Brake Rotor
Diameter	315.0 mm	12.402 in
Discard Thickness*	21.0 mm	0.827 in
Maximum Allowable Assembled Lateral Runout	0.05 mm	0.002 in
Maximum Allowable Scoring	1.50 mm	0.59 in
Maximum Allowable Thickness Variation	.025 mm	0.002 in
Minimum Allowable Thickness After Refinish	22.0 mm	0.866 in
Thickness - New	23.0 mm	0.906 in
* All brake rotors have a discard dimension cast into them. Replace any rotor that does not meet this specification. After refinishing the rotor, replace any rotor that does not meet the discard thickness specification.

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.

Safety Warning

Disc Brake Component Specifications

Use the Manual With the Right Hardware

When to See a Mechanic