2016 GMC Sierra Brakes Creaking When Pressed

If you own a 2016 GMC Sierra, you may have noticed an annoying creaking noise coming from the brakes when the pedal is pressed. It's a common complaint among Sierra owners, and the noise tends to get louder over time if left unaddressed.

In most cases, the sound traces back to surface rust building up on the brake caliper slides. Once a mechanic identifies the cause, a thorough cleaning of the slides is usually all it takes to fix the issue.

The Start of the 2016 GMC Sierra Brakes Creaking Problem

The 2016 GMC Sierra brakes creaking issue often shows up a year or two into ownership, well before any major mileage milestone. It typically starts out quiet and gradually gets louder over time. It's easy to dismiss at first since brakes naturally make some noise as they wear, but a persistent creak like this usually points to something beyond normal wear and tear.

The noise can appear with as little as 30,000 miles on the odometer, which surprises owners who don't expect brake trouble that early. Stopping power generally stays normal throughout, since the creaking stems from a mechanical binding issue rather than worn pads or rotors.

As the noise continues, it often becomes loud enough that passengers comment on it. At that point, most owners decide it's time to have a shop take a look at the brakes.

Taking it to the Mechanic

A mechanic diagnosing the 2016 GMC Sierra brakes creaking issue will typically start with a test drive, since the noise is usually easy to reproduce. A visual inspection of the pads and rotors comes next.

In most cases, the pads and rotors show normal wear for the mileage, with no obvious damage that would explain the noise. That rules out the usual suspects and points the technician toward less obvious causes, prompting a closer look at other brake components.

The typical culprit turns out to be rust and corrosion buildup on the brake caliper slides. These are the parts that allow the caliper to slide back and forth as the brakes are pressed and released. When rust builds up, it causes the caliper to bind and stick slightly as it moves.

This binding is what produces the creaking, grinding noise coming from the 2016 GMC Sierra brakes whenever the brakes are applied. Even when nothing looks wrong on the outside, corrosion on the slides can quietly cause the problem.

Fixing the Rusty Caliper Slides

Fixing the problem involves removing each caliper one by one to access the slides. A mechanic uses a wire brush to scrub away the surface rust that has accumulated, then applies a penetrating lubricant to protect the bare metal and prevent future corrosion.

Once the rust is cleared and the slides are lubricated properly, the calipers can slide freely again as designed. This resolves the creaking coming from the 2016 GMC Sierra brakes without requiring any part replacements, since a thorough cleaning is often all it takes.

The repair typically takes only a couple of hours but fully resolves the noise. Because it doesn't involve replacing rotors or pads, it's a relatively low-cost fix, which matters when the issue shows up at low mileage.

Preventing Future Rust Buildup

Preventing the 2016 GMC Sierra brakes creaking issue from coming back starts with understanding what causes it. Rust is a common culprit behind brake creaking, since moisture can get trapped inside the caliper assembly and never fully dry out.

Over time, trapped moisture leads to corrosion building up on the slides, and driving in wet or winter conditions speeds up the process. The best way to protect against future rust is using a corrosion-inhibiting lubricant on the slides during regular brake inspections. Caliper grease is ideal, since it repels water while still lubricating the moving parts. A rust-removing spray applied to the slides every six months or so also works well as a preventative treatment.

Proper maintenance like this can meaningfully extend the life of brake components. Keeping the 2016 GMC Sierra's brake slides clean and lubricated helps prevent the creaking from returning.

Final Thought

Creaking brakes on a 2016 GMC Sierra are usually not a sign of a serious problem, but they shouldn't be dismissed as normal wear either. Having a mechanic thoroughly inspect and address the root cause, in most cases rusty caliper slides, helps avoid bigger brake problems down the road.

A lack of visible wear on the outside doesn't rule out internal issues developing quietly. Rust can build up inside the caliper assembly without any obvious warning signs.

Regular brake inspections, lubricating sliding surfaces, and using anti-corrosion products go a long way toward maximizing brake and vehicle performance. GMC owners dealing with creaky 2016 Sierra brakes can typically resolve the issue with a straightforward cleaning and lubrication service.

FAQ

How can you tell if it’s just surface rust or a bigger problem?

If the noise is the only symptom and the brakes are still stopping the truck fine, it’s likely surface rust. Have a mechanic inspect for wear on pads/rotors which would point to a deeper issue. Rust buildup is common and removal usually fixes it.

Will this happen on all GMC models or just the 2016 Sierra?

Creaky brakes due to rust are possible on many vehicles, but reports seem more common for the 2016 GMC Sierra. Its brake assembly design may be more prone to trapping moisture. Other GM trucks could also be affected. Always maintain your brakes to prevent rust wherever possible.

Is there a recall or technical service bulletin for this issue?

GM has not issued an official recall for creaky brakes on the 2016 Sierra. However, there is a technical service bulletin (TSB 18-NA-014) acknowledging complaints of noise and providing lubrication/cleaning procedures as a remedy. While not a defect, it recognizes preventative maintenance can help.

What’s the best lubricant to use on the slides?

Caliper grease is ideal as it’s thick enough to stay put but still allows smooth movement. It repels water too. Other options include lithium or molybdenum grease. Avoid wax-based lubes as they attract debris. When in doubt, consult your owner’s manual or mechanic.

Is there anything I can do myself or should fixes only be dealer repairs?

Most of the time, surface rust removal can be done as a DIY project if you have basic mechanic skills. Just be careful not to damage components. Deeper issues may require a pro. Refer to service info for guidance on what’s involved in your specific situation.