2015-2016 Chevrolet Colorado Brake Upgrade Options

By Core Brake Parts Tech Team — Circleville, OH warehouse

The 2015-2016 Chevrolet Colorado left the factory with four-wheel disc brakes and anti-lock brakes on every trim, so a brake upgrade on this truck is about heat capacity and pad compound, not about converting anything. What changes how the truck actually stops is a tow-rated friction compound, a rotor built to shed heat, fresh fluid, and healthy calipers and hoses feeding them. Before you spend anything, check whether your VIN is covered by the 2015 front-caliper recall, because a leaking caliper will ruin the feel of any parts you bolt on top of it.

What the 2015-2016 Colorado runs from the factory

Chevrolet's own literature for the second-generation Colorado lists four-wheel disc brakes with the Anti-lock Braking System, StabiliTrak with Hill Start Assist, and long-life Duralife brake rotors as standard equipment, with Hill Descent Control added on Z71 models and auto grade braking built into the six-speed automatic. That means rear pads and rotors are a normal service item on this truck, not an afterthought.

The reason owners start shopping for brake parts is load, not deficiency. A properly equipped 2016 Colorado is rated to tow up to 7,000 lb with the 3.6L V6 and up to 7,700 lb with the Duramax 2.8L turbo-diesel, and the diesel adds an exhaust brake and an integrated trailer brake controller from the factory. Pull anything near those numbers in hilly country and the standard friction package heats up far faster than it does empty on flat ground. Heat is what makes the pedal go long and the pads go away, and heat is what a sensible upgrade targets.

Check the 2015 front-caliper recall first

GM recall bulletin 14888D, filed with NHTSA as campaign 15V278000, covers 2015 Chevrolet Colorado and GMC Canyon trucks whose front brake calipers can leak brake fluid. GM's description of the cause is specific: tiny air pockets formed in the metal when the caliper body was cast, and where those pockets line up into a continuous string through the body they create a leak path. The bulletin says the result can be longer brake-pedal travel and increased stopping distances, that owners may find brake fluid on the ground near a front tire, and that the brake system warning light will come on if enough fluid is lost.

The dealer fix starts with an inspection of the caliper body casting, since the original and replacement designs have a differently shaped pin ledge; trucks still wearing the original casting get both front calipers replaced. GM's parts list is the left and right front calipers, four copper washers, and two units of GM DOT 3 hydraulic brake fluid, with 1.2 hours of labor allowed to do both sides including bleeding. If your truck is a 2015 and the work was never done, run the VIN through NHTSA's recall lookup before you buy parts. If it was done, or your truck is a 2016, a soft or slowly sinking pedal is a reason to inspect the brake calipers and hoses rather than to throw pads at it.

Pick the upgrade that matches your complaint

Most Colorado owners who think they need bigger brakes need a better pad and clean fluid. Spend there first.

Rotor upgrades: what the surface treatment is actually for

Slots and drilled holes do not add stopping power on their own. They manage the gas and dust that build up between pad and rotor face, and they keep the pad wearing flat instead of polishing into a glaze. What carries real heat capacity is the vane design inside the rotor and the iron it is cast from.

DBA is blunt about both sides of that trade. Its 4000 Series uses a Kangaroo Paw internal vane pattern of 144 diamond and teardrop patterned pillars that the company says delivers up to a 30 percent increase in surface area and a 20 percent improvement in cooling efficiency over a straight-vane rotor, plus heat treatment cycles that realign the iron's microstructure for stability. DBA also states plainly that drilled rotor configurations are not recommended for heavy off-road or track-day usage. That is the honest guidance for a Colorado: a slotted face suits a truck that works, and cross-drilling suits street duty.

On the store side, the performance discs we stock for this chassis are the EBC GD Sport line, cut for the second-generation Colorado in both axle positions: the EBC GD7701 front rotor pair for 2015 and newer Colorado and the matching EBC GD7702 rear rotor set. We also carry DBA 4000 Series XS discs, including the 4000 Series XS front rotor and the 4000 Series XS rear rotor, but read the catalog wording carefully: those two are listed for the RG-body Colorado sold outside North America, which does not share brake dimensions with every US-market configuration. Measure your rotor diameter and thickness before ordering either, or stay with the EBC part cut for the US truck. The rest of the range sits in brake rotors.

Pads: the upgrade that changes the most

Pad compound sets the point where your brakes stop working, and a truck that tows wants a compound built for load rather than for a quiet commute. Power Stop's Z36 Truck and Tow pad is a representative example: a ceramic formula reinforced with carbon fiber, aimed at towing, hauling, larger tires, mountain driving and off-road use, with a chamfered and slotted shape for noise control and stainless shims, hardware and high-temperature lubricant in the box. Power Stop also states that the break-in procedure is critical to brake performance, because bedding lays an even layer of friction material onto the rotor face.

That last point matters more than the brand on the box. A tow-duty pad that was never bedded will judder, and the rotor usually gets blamed for it. Follow the sequence the pad maker prints, do it before you hitch a trailer, and do not sit with your foot on the pedal at a stoplight while hot brakes are still laying that layer down. Browse compounds in brake pads, or stay with a quieter street formula in ceramic brake pads if the truck mostly commutes.

Fluid, hoses and the parts to do at the same time

GM's recall parts list for this truck calls out DOT 3 hydraulic brake fluid, so that is the specification the system was built around. Federal Motor Vehicle Safety Standard 116 sets the floor for each grade: DOT 3 must reach a minimum equilibrium reflux boiling point of 205 C (401 F) new and 140 C (284 F) once it has absorbed water, while DOT 4 is held to 230 C (446 F) dry and 155 C (311 F) wet, and DOT 5.1 to 260 C (500 F) dry and 180 C (356 F) wet. The wet numbers are what matter on a loaded truck late in a season, because glycol-based fluid pulls moisture out of the air over time. Use the grade your owner's manual specifies, flush on the manual's schedule instead of topping off, and never put silicone DOT 5 fluid into a system built for glycol fluid.

While the wheels are off, replace what wears alongside the friction parts: the clips, shims and slide-pin boots in a hardware kit, and any flexible brake hose that is cracked, swollen or simply original at high mileage. A swollen hose can act like a one-way valve and hold a pad against the rotor, which reads at the wheel like a failed caliper.

How hard is the job

A pad and rotor service at one axle is an ordinary driveway job on this truck if you have a jack, stands, a torque wrench and a caliper piston tool. Rear caliper pistons on the second-generation Colorado are tied into the parking-brake mechanism, so they need the correct wind-back tool rather than a straight push. Anything that opens the hydraulic system means bleeding afterward, and that is the step that takes the time: GM allows 1.2 hours to replace both front calipers and bleed the system in a dealer shop. Torque every fastener to the value in the factory service information for your truck, and bed the new friction in before the first tow.

Frequently Asked Questions

Does the 2015-2016 Chevrolet Colorado have rear drum brakes?

No. Chevrolet lists four-wheel disc brakes with ABS as standard equipment on the second-generation Colorado, including the base trim, so both axles take pads and rotors.

Was there a brake recall on the 2015 Colorado?

Yes. NHTSA campaign 15V278000, GM bulletin 14888D, covers 2015 Colorado and Canyon front brake calipers that can leak fluid through porosity in the casting. Dealers inspect the caliper body design and replace both front calipers when the original casting is found. Check your VIN on the NHTSA recall lookup.

Are drilled rotors a good idea on a truck that tows?

DBA, which builds both patterns, states that drilled rotor configurations are not recommended for heavy off-road or track-day usage. For a Colorado that hauls or works, a slotted face on a well-vented casting is the more durable choice, and drilled discs are better suited to street use.

Do I have to replace rotors when I replace pads?

Not automatically, but you do have to measure. If a rotor is at or near the discard thickness stamped on the hat, or the face is scored or carries uneven friction deposits, new pads will simply copy the old problem. New pads on a clean, in-spec rotor with a proper bed-in is the outcome you want.

Will upgrading pads and rotors shorten my stopping distance?

On a single stop from cold the change is small, because that stop is usually limited by tire grip. The difference shows up on the second, third and fourth stop, and on a long grade with a trailer, where a tow-rated compound and a better-cooled rotor hold their bite while a fading stock setup does not.

Sources

1. GM Recall Bulletin 14888D - caliper leak cause, inspection and repair procedure, DOT 3 fluid, labor allowance
2. NHTSA recalls by vehicle, 2015 Chevrolet Colorado - campaign 15V278000 component and consequence
3. NHTSA recall lookup - checking a VIN for open recalls
4. 2016 Chevrolet Colorado brochure - standard four-wheel disc brakes, Duralife rotors, tow ratings, diesel exhaust brake
5. DBA 4000 Series rotors - Kangaroo Paw vane and cooling claims, and the caution on drilled rotors
6. Power Stop Z36 Truck and Tow brake pads - compound, intended duty, hardware, break-in
7. 49 CFR 571.116, FMVSS 116 - dry and wet boiling point minimums by DOT grade