2020 GMC Acadia Brake Pad & Rotor Specs

As an ASE-certified master technician, I’ve serviced countless midsize SUVs, and the second-generation GMC Acadia (2017–present) is a frequent visitor to the bays. For the 2020 GMC Acadia, ensuring you have the correct brake pad and rotor specifications is critical for maintaining this family hauler’s stopping power and safety.

Below is your comprehensive brake spec reference guide for the 2020 GMC Acadia, complete with torque specs, part numbers, and expert advice to help you tackle your next brake job with confidence.

Quick reference

Note: The 2020 GMC Acadia may have slightly different brake options depending on the trim (e.g., SLE, SLT, AT4, Denali) and engine (2.5L, 2.0L Turbo, or 3.6L). Always verify exact OEM part numbers with your dealer using your VIN.

How to choose pads

Selecting the right brake pads for your 2020 Acadia depends heavily on your driving habits and typical payload.

• Ceramic Pads: This is the standard for most Acadia owners and closely matches the factory equipment. Ceramic pads offer exceptionally low dust, quiet operation, and smooth braking. Brands like Akebono (ProACT) and Bosch (QuietCast) are top-tier choices for daily commuting and school drop-offs.
• Semi-Metallic Pads: If you frequently drive in mountainous terrain or tow light trailers with your 3.6L V6 Acadia, semi-metallic pads offer superior heat dissipation and a firmer brake pedal feel. The trade-off is more brake dust and a higher chance of brake squeal.
• Heavy-Duty (HD) / Towing Pads: If your Acadia is routinely loaded to the maximum gross vehicle weight rating (GVWR), consider upgrading to a severe-duty pad and rotor kit (like those offered by Power Stop). These often feature carbon-fiber ceramic compounds designed to resist brake fade under extreme stress.

Typical service life

On average, the front brake pads on a 2020 GMC Acadia will last between 35,000 and 50,000 miles, while the rear pads often stretch to 45,000 to 60,000 miles. However, stop-and-go city driving will accelerate this wear significantly.

Many DIYers ask about the recommended "pad-slap" interval—meaning replacing only the pads and leaving the old rotors on the vehicle. As a master tech, I strongly advise against pad-slaps unless the rotors are well above the minimum machine thickness (28mm front / 21.5mm rear), have zero lateral runout (no pulsation), and show no deep scoring. Even then, rotors should technically be resurfaced on a brake lathe to ensure proper pad bed-in. In today's market, replacement rotors are often more cost-effective than paying for labor to machine old ones.

Common brake issues for this generation

The 2017+ GMC Acadia platform is generally reliable, but there are a few brake-related quirks to watch out for:

1. Electronic Parking Brake (EPB) Service Mode: The 2020 Acadia uses an electronic parking brake on the rear calipers. You must put the vehicle into EPB Service Mode using a scan tool or a specific dashboard button sequence before compressing the rear caliper pistons. Forcing the piston back without retracting the electronic actuator will destroy the caliper.
2. Brake Pulsation: Modern GM SUVs are heavy, and hard braking can lead to uneven rotor wear or friction material transfer, commonly misdiagnosed as "warped rotors." Always torque your lug nuts to the factory spec (140 ft-lbs) in a star pattern to prevent inducing lateral runout.
3. Spongy Pedal: GM transitioned to DOT 4 fluid for better boiling point characteristics, but DOT 4 absorbs moisture faster than DOT 3. A spongy pedal often indicates moisture in the fluid. A full brake fluid flush is recommended every 3 years or 45,000 miles.

Brake job cost estimate

If you take your 2020 Acadia to a professional shop, costs will vary based on labor rates in your area and the quality of parts used.

• Front Pads and Rotors: $350 – $500
• Rear Pads and Rotors: $350 – $480
• Four-Wheel Brake Job: $700 – $950
• Brake Fluid Flush: $100 – $150

Doing it yourself can save you a significant amount of money in labor. A complete set of high-quality aftermarket pads and rotors for all four corners will typically run you between $250 and $400 in parts.

If you don't have the tools, time, or a scan tool to handle the electronic parking brake, it's best to leave this job to a certified professional.

Find a trusted brake shop on Repairius.