A Guide to Replacing Disc Brake Pads on the 2013-2019 Cadillac XTS
Restore your XTS's quiet, confident stopping power by choosing the right brake pads for your specific model.
- You must identify if you have standard or Brembo front brakes before ordering parts, as they are not interchangeable.
- Rear brake replacement requires a diagnostic scan tool to put the Electronic Parking Brake (EPB) into service mode.
- A common brake squeal issue is addressed by TSB 17-NA-040, which requires specific lubrication, not necessarily new pads.
- For best results and safety, always replace brake rotors at the same time as the brake pads.
Is It Time for New Brake Pads?
Your Cadillac XTS is designed to be a quiet, comfortable luxury sedan, and worn brakes can ruin that experience. Watch for these common signs that your brake pads are nearing the end of their life.
- Squealing or Screeching: Most brake pads have a small metal tab called a wear indicator. When the pad material wears down, this tab contacts the rotor and makes a high-pitched squeal when you brake. This is an audible warning that it's time for a replacement.
- Grinding Noise: If you hear a harsh, grinding metal-on-metal sound, stop driving as soon as it is safe. This means the friction material is completely gone, and the pad's metal backing plate is grinding against the rotor, causing severe damage and unsafe braking.
- Vibration or Pulsing: A pulsing sensation in the brake pedal or vibration in the steering wheel when braking often points to warped brake rotors. Rotors usually need to be replaced along with the pads.
- Brake Warning Light: Your XTS is equipped with electronic brake pad wear sensors. When the pads are sufficiently worn, a sensor will trip and display a "Brake Pads Worn" message on your driver information center.
- Longer Stopping Distances: If you feel like your car is taking longer to stop than it used to, your brake pads may be worn out or glazed over, reducing their effectiveness.
Critical First Step: Identify Your Front Brakes
Before ordering parts, you MUST determine if your XTS has the standard factory brakes or the optional Brembo performance front brakes. They use completely different pads and hardware. V-Sport models typically have Brembo brakes, but they could be on other trims as well.
- Brembo Calipers: These are usually larger, often painted (typically grey or black on the XTS), and will have the "Brembo" logo visible on the face of the caliper. They use a pin-and-clip system to hold the pads in place. 🎬 Watch: How to replace front brakes with Brembo calipers
- Standard Calipers: These are typically unpainted cast metal and have a more traditional design where the caliper is held on by two bolts.
Ordering the wrong pads is the most common mistake. Double-check your vehicle before you buy.
Choosing the Right Aftermarket Brake Pads
Aftermarket pads offer more choices than the original equipment (OEM) parts. You can choose pads based on your budget and driving priorities, whether that's quiet operation, low dust, or increased performance.
Brake Pad Brand Tiers for Your XTS
| Tier | Brands | Best For |
|---|---|---|
| Premium Daily Driver (OEM-Equivalent) | ACDelco Gold, Akebono, Bosch QuietCast, Wagner OEX/ThermoQuiet, Raybestos | Owners who want to restore the original quiet performance and low-dust characteristics of their XTS. Akebono and Bosch are highly regarded for their smooth, silent operation and clean wheels. ACDelco is the OEM supplier for GM. |
| Performance & Heavy-Duty | Brembo, Hawk, Powerstop, EBC Brakes | Drivers with Brembo-equipped models or those seeking more initial bite and fade resistance. Be aware that performance pads may create more dust and noise than ceramic touring pads. |
| Economy | Dynamic Friction, Pronto, Total Stopping Solutions, ACDelco Silver | Meeting basic transportation needs on a budget. These pads are safe and functional but may not offer the same longevity, low noise, or low dust levels as premium options. |
A Note on Brake Squeal (TSB 17-NA-040)
Many 2013-2019 XTS models can develop a squeak on the first few light brake applications of the day, especially in humid weather. GM issued a Technical Service Bulletin stating this is often not due to worn pads. The fix is to clean the caliper bracket and apply a specific copper-based lubricant to the pad abutment points. If your new pads are making noise, improper lubrication of the contact points is a likely cause.
Known Vehicle-Specific Issues
- Rear Caliper Piston Recall (18V576): Some 2018-2019 XTS models were recalled for an issue where rear caliper pistons could allow gas pockets to form, reducing brake performance. The fix was a dealer-performed brake bleed.
- Electronic Parking Brake Drag Recall (14V552000): On certain 2013-2015 models, the electronic parking brake arm might not fully retract, causing the rear pads to drag against the rotors. This highlights the importance of proper rear brake service. 🎬 See this walkthrough for replacing rear brake pads and rotors
Rear Brake Replacement: Electronic Parking Brake (EPB)
The Cadillac XTS has an Electronic Parking Brake. You cannot simply use a C-clamp to push the rear caliper piston back in as you would with a non-EPB system. Doing so can permanently damage the electric motor inside the caliper. The correct procedure requires a diagnostic scan tool to command the brake caliper to enter "Service Mode," which retracts the piston electronically. Once the new pads are installed, the tool is used to exit service mode. While some DIYers attempt workarounds, using a proper scan tool is the only way to guarantee you won't damage the expensive calipers.
🎬 Watch: How to use a scan tool for EPB service modeFrequently Asked Questions (FAQ)
Do I need a special tool to change the rear brake pads?
Yes. Because of the Electronic Parking Brake (EPB), you need a diagnostic scan tool capable of putting the rear calipers into service mode. Forcing the piston back manually will likely damage the caliper's internal electric motor, leading to a costly repair.
Why are my new brakes squeaking?
New brake squeak is almost always caused by vibration. This can be due to not cleaning and lubricating the caliper contact points (abutment clips) and hardware correctly. For the XTS, there is a specific TSB (17-NA-040) addressing this, which calls for applying copper paste to the pad abutments to stop noise. It can also be caused by not properly breaking in, or "bedding," the new pads and rotors.
Should I replace my rotors at the same time as my pads?
It is highly recommended. Installing new pads on old, worn, or warped rotors can cause noise, vibration, and reduced pad life. For the best performance and safety, replacing pads and rotors together as a set ensures a fresh, perfectly matched surface for proper bedding and smooth braking.
What are Brembo brakes and how do I know if I have them?
Brembo is a manufacturer of high-performance braking systems. On the XTS, they were an optional upgrade for the front wheels. Look at your front brake calipers through your wheel spokes. If the caliper is large and has the word "Brembo" on it, you have the performance brake package. If it's a plain, unpainted metal caliper, you have the standard brakes.
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Technical Specifications
OEM Part Numbers: 23271117 22813180
Varies significantly based on standard or Brembo brake system. Standard systems use single-piston sliding calipers. Brembo systems use four-piston fixed calipers. All models use an Electronic Parking Brake (EPB) on the rear axle.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
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