2010-2015 Honda CR-Z Parking Brake Problems and Adjustment

By Core Brake Parts Tech Team — Circleville, OH warehouse

The Honda CR-Z uses a hand lever parking brake that pulls cables to the rear disc calipers, where a small lever and screw mechanism inside each caliper pushes the rear pads against the rotor. Most CR-Z parking brake complaints come down to three things: stretched or sticky cables, a seized mechanism inside a rear caliper, or a rear pad job where the piston was not reset correctly. Here is how the system works, how to tell which part is at fault, and how adjustment is done.

How the CR-Z Parking Brake Works

There are no drum shoes hiding inside the rear rotors on a CR-Z. Honda lists dedicated left and right rear caliper assemblies and rear caliper overhaul kits for the 2011 to 2015 cars, and the parking brake is built into those calipers. Each rear caliper has an external arm. When you pull the center console lever, the cables pull those arms, which turn a shaft inside the caliper and drive the piston out against the inner pad. Release the lever and a return spring brings the arm back to its rest stop.

The same internal mechanism also self-adjusts. As the rear pads wear, a ratchet or screw inside the piston takes up the extra clearance so the lever travel stays about the same over the life of the pads. That is why a correctly working CR-Z parking brake rarely needs adjusting between brake jobs, and why a lever that suddenly travels much farther usually points to a problem rather than normal wear.

Operation is simple: pull the lever fully up to set it, and to release, pull up slightly, press and hold the button on the end, and lower it. The parking brake indicator in the gauge cluster comes on while it is set, and Honda states you will hear a beep if you drive with it not fully released.

Common Symptoms and What They Point To

Pay attention to the red brake system indicator. Honda's owner information says it comes on when brake fluid is low or the brake system has a problem. On the CR-Z the parking brake has its own indicator, so a red brake light that stays on with the lever down is worth checking right away: press the pedal lightly to confirm it feels normal, then check the fluid level when you stop. Low fluid on a car with no leak often means the pads are worn, because the caliper pistons have moved outward and taken fluid with them.

Why CR-Z Parking Brakes Stick or Lose Adjustment

Cable corrosion. The cables run under the car from the console to each rear wheel. Water gets past the outer jacket, the inner strand rusts, and the cable either stretches under load or refuses to return. A cable that will not return holds the caliper arm off its stop, which drags that rear pad all the time.

A seized caliper mechanism. The shaft that the arm turns is sealed, but once moisture gets in, the shaft and the adjuster inside the piston can corrode. The arm may move but the piston does not follow, or the adjuster stops taking up clearance so the lever travel grows as the pads wear.

A rear pad job done the wrong way. This is the most common cause. On calipers with a built-in parking brake, the piston cannot simply be pushed straight back like a front caliper piston. It has to be rotated as it is pressed in, usually clockwise, with a caliper wind-back tool. Forcing it straight back can damage the internal adjuster, and afterward the parking brake never adjusts correctly again.

Rarely used. Cars with automatic transmissions often go months without the parking brake being set. The mechanism and cables do best when they are used regularly. Setting the parking brake every time you park, even on flat ground, keeps them moving.

How Adjustment Works on the CR-Z

The order matters. Adjusting the cables to cover a caliper problem only hides it for a while and can leave the rear pads dragging.

1. Start at the calipers. With the rear wheels off and the lever fully released, confirm each caliper arm is resting against its stop. If an arm is held off the stop, the cable is too tight or seized, and that must be fixed first.
2. Let the self-adjusters work. After any rear brake service, with the engine running, press the brake pedal firmly several times. This brings the pistons out and lets the internal adjusters take up pad clearance. Skipping this step is why many owners find a very high lever right after a pad change.
3. Check lever travel. Pull the lever up with firm, steady force and count the clicks. The factory service manual gives the correct click range and the pull force to use; the lever should hold the car on a slope within that range.
4. Adjust at the lever only if needed. The cable adjuster is at the lever under the center console. Tighten it only until the click count falls into the factory range, then release the lever and confirm both rear wheels spin freely with no drag.
5. Road test. Confirm the indicator goes out with the lever down, the beep does not sound while driving, and neither rear wheel is hot after a short drive.

If you find yourself tightening the cable adjuster a lot, stop and look for the real cause: a worn rear pad, a seized caliper mechanism, or a stretched cable.

What to Replace Together

Rear pads should always be replaced as an axle set, and it is smart to inspect the rear rotors at the same time, since a lipped or rusted rotor face cuts parking brake holding power. If a caliper mechanism has seized, replace that caliper; the CR-Z rear calipers are side-specific, so make sure you get the correct left or right unit. When one cable has failed from rust, the other is often close behind. Fresh caliper slide pin grease and new brake hardware kits help the rear pads release cleanly.

Front brakes do most of the stopping on the CR-Z, so a parking brake repair is a good time to measure the fronts too. For drivers who want lower dust on the street, the EBC Redstuff ceramic front brake pads for the 2010-2015 CR-Z are a direct fit, and for owners who take the car to autocross or track days, the EBC Yellowstuff street and track front pads for the CR-Z are built for higher heat. You can also browse our full brake pads collection and brake calipers.

How Hard Is the Job?

Checking lever travel and adjusting at the lever is a basic job with hand tools, though console trim has to come off to reach the adjuster. Rear pads on the CR-Z are a moderate DIY job because of the wind-back tool requirement. Replacing a rear caliper means opening the hydraulic system, so the brakes must be bled afterward with fresh fluid of the type printed on the reservoir cap and in the owner's manual. Replacing a parking brake cable involves working under the car and removing some console and heat shield pieces. If the pedal ever feels soft or sinks after caliper work, do not drive the car until the system is bled and checked.

Frequently Asked Questions

Does the Honda CR-Z have rear drum brakes?

No. The CR-Z uses rear disc brakes, and the parking brake is built into the rear calipers rather than using a separate drum shoe set inside the rotor.

Why is my CR-Z parking brake lever so high after new rear pads?

The internal self-adjusters have not taken up the new pad clearance yet. Press the brake pedal firmly several times with the engine running and recheck. If it stays high, the piston may have been forced back without rotating it, which can damage the adjuster.

Why does the brake light stay on when the parking brake is off?

Check the brake fluid level first. Honda uses the red brake system indicator for low fluid or a brake system problem. If the fluid is correct, the switch at the lever may be out of position. A soft pedal with the light on needs immediate attention.

Can I just tighten the parking brake cable?

Only after you confirm the rear pads, rotors and calipers are in good condition and the self-adjusters have been cycled. Tightening the cable to make up for a seized caliper leaves the rear brakes dragging and wears pads fast.

How do I know if a rear caliper parking mechanism is seized?

With the wheel off, have a helper work the lever and watch the arm on the caliper. If the arm moves but the piston does not push the pad, or the arm does not return to its stop, the mechanism is seized and the caliper should be replaced.

Sources

1. Honda Owners - CR-Z Instrument Panel Details - brake system indicator meaning and the parking brake beep when driving with it applied
2. Honda - 2014 CR-Z Technology Reference Guide - separate parking brake and low brake fluid/brake system indicators
3. Honda - 2012 CR-Z Technology Reference Guide - indicator layout on earlier CR-Z models
4. Honda Parts Now - CR-Z Brake Caliper Parts - side-specific rear caliper assemblies and rear caliper overhaul kits for 2011-2015
5. Tomorrow's Technician - Rear Disc Brake Piston Retraction - self-adjusting mechanism in calipers with integral parking brakes and why the piston must be rotated, not forced