2014-2020 Mitsubishi Outlander Front vs Rear Brakes: What Wears First and What to Replace

By Core Brake Parts Tech Team — Circleville, OH warehouse

On a 2014-2020 Mitsubishi Outlander the front brakes almost always wear out first, because the front axle does most of the stopping. The rear brakes last longer, but on this generation they deserve their own attention: the rear calipers carry the parking brake, and two federal recalls covered corrosion inside those rear calipers. Replace pads and rotors in axle pairs, and check the rear calipers every time the wheels come off.

How the Outlander splits braking between front and rear

Every road car is set up with front brake bias. When you brake, the vehicle's weight transfers forward, which loads the front tires and lets them do more of the work. Bendix, one of the major friction makers, explains that this forward weight transfer is the reason front rotors are typically larger than rear rotors, and that road vehicles are factory-set with a front bias because of where the engine sits.

The Outlander is a front-engine crossover, so that rule applies fully. The front pads and rotors absorb most of the heat on every stop, and they wear faster. The rear axle uses disc brakes too, with smaller rotors and a caliper that doubles as the parking brake. Modern stability control can also apply individual brakes, including the rears, to steady the vehicle in a corner or an emergency maneuver, so the rear pads are not idle, they just see less load on a normal stop.

Symptoms: front brakes vs rear brakes

Knowing which end is making the noise saves you from buying the wrong parts.

Front brake symptoms

• High-pitched squeal on light braking that goes away when you press harder. That is usually the wear indicator tab touching the rotor, telling you the pads are near the end.
• Steering wheel shake when stopping from highway speed. That points to front rotors with uneven thickness or deposits.
• Grinding. The friction material is gone and the backing plate is cutting the rotor. Stop driving on it; the rotors will need replacing.
• Pulling to one side under braking, often a sticking front caliper slide or piston.

Rear brake symptoms

• Parking brake does not hold on a slope, or does not release fully. On this generation that is the first thing to check, because it is the failure the recalls addressed.
• A dragging, hot rear wheel after a drive, or a burning smell. A binding parking brake mechanism or a seized rear piston can keep the pad pressed against the rotor.
• Pulsation felt through the seat rather than the steering wheel usually comes from the rear rotors.
• Rear pads worn unevenly, inner versus outer, which suggests caliper or slide problems.

The rear caliper recalls you need to know about

Two recalls apply to rear calipers on this Outlander generation, and both concern the parking brake mechanism inside the caliper.

2014-2016 Outlander (Mitsubishi campaign SR-18-002). Mitsubishi recalled more than 170,000 vehicles, covering 2014-2016 Outlander and 2013-2016 Outlander Sport, because the parking brake shafts and rear caliper boots were not properly water-sealed. Moisture could corrode the parking brake shaft so it sticks. The remedy was for dealers to inspect, and replace if necessary, the rear calipers and parking brake boots at no cost. Mitsubishi began coating all parking brake components with an anticorrosion covering starting January 2016.

2016 Outlander and Outlander Sport (NHTSA campaign 20V741). Consumer Reports reported that 21,758 SUVs built between January 28, 2016 and May 27, 2016 were recalled because rust-proofing on a part inside the parking brake assembly may have peeled off during production. The remedy was replacement of the rear brake caliper assembly at no cost.

If you own a 2014-2016 model, run your VIN through the NHTSA recall lookup or ask a Mitsubishi dealer before you buy rear calipers. If a recall repair is still open, the dealer does that work free.

Rear brake service on models with an electric parking brake

Some Outlanders in this generation use an electric parking brake, operated by a switch on the console. On those vehicles you cannot simply push the rear caliper piston back with a clamp. The factory service manual calls for putting the system into maintenance mode, which fully releases the electric parking brake so the rear piston can be pushed back to replace the rear pads or rotors.

The factory procedure, in short: raise and support the vehicle, shift to Park with the brake pedal pressed, turn the ignition on without starting the engine, then operate the parking brake switch and the auto hold switch in the specific sequence the manual lists. The system confirms maintenance mode when the yellow electric parking brake warning lamp stays on and the display shows PARKING BRAKE SERVICE REQUIRED. The manual then has you disconnect the negative battery terminal. To exit, reconnect the battery, turn the ignition on and apply the parking brake switch until the warning lamps stop flashing.

Skipping this step and forcing the piston can damage the actuator. If your Outlander has a conventional parking brake instead, the rear piston retracts with the standard tool for that caliper type; follow the factory service manual for your exact vehicle.

What to replace, and what to replace at the same time

Front brake job

• Pads for both front wheels, always as a set. We carry Bendix front ceramic brake pads for the 2014-2020 Outlander.
• Rotors if they are below the minimum thickness stamped on the rotor, warped, heat-checked or scored. Browse replacement brake rotors.
• Hardware: new abutment clips and fresh caliper slide pin grease. A brake hardware kit prevents rattles and uneven pad wear.

Rear brake job

• Pads and rotors in pairs, same as the front.
• Check the rear calipers: confirm the parking brake applies and releases fully and the piston moves freely. A sticking caliper will eat a new set of pads. Replacement units are in our brake calipers collection.
• Inspect the flexible hoses for cracks or swelling while the wheel is off; see brake hoses.

Brake fluid

Brake fluid absorbs moisture over time. Use the fluid type printed on your master cylinder reservoir cap, do not mix fluid types, and flush it at the interval in your owner's maintenance schedule. Old, wet fluid is one more source of internal corrosion in the same rear calipers the recalls dealt with.

How hard is the job?

A front pad and rotor job on the Outlander is a standard floating-caliper job that a careful home mechanic can do with basic hand tools, a torque wrench and a caliper piston tool. Torque the caliper bracket bolts and lug nuts to the values in the factory service manual; do not guess.

The rear is a step harder. On electric parking brake models you must enter and exit maintenance mode, and on every model you should verify the parking brake mechanism works before closing things up. If you are not comfortable with that, the front brakes are the better DIY job and the rears are a reasonable one to hand to a shop. After any pad replacement, pump the brake pedal several times before driving to seat the pistons, then bed in the new pads with a series of moderate stops.

Frequently Asked Questions

Should front brakes wear faster than rear brakes on an Outlander?

Yes. The Outlander is front-heavy and, like all road vehicles, set up with front brake bias, so the front pads and rotors do most of the work and normally wear out first.

My rear pads wore out before my fronts. Is something wrong?

Possibly. On this generation, check that the rear calipers release fully. A sticking parking brake mechanism or seized piston keeps the rear pads dragging, which wears them quickly. Check for an open recall on 2014-2016 models.

Do I have to replace pads on all four wheels at once?

No. Pads are replaced per axle, left and right together. The front and rear axles are serviced on their own schedules.

Can I push back the rear piston with a C-clamp?

Not on Outlanders with an electric parking brake. The factory procedure requires maintenance mode first. Forcing the piston can damage the parking brake actuator.

Should I replace rotors every time I replace pads?

Replace them if they are under the minimum thickness stamped on the rotor, warped, cracked or deeply scored. Many owners replace rotors with pads because new pads bed in faster and more evenly on a fresh surface.

Are ceramic pads a good choice for an Outlander?

For daily driving, yes. Ceramic pads run quiet and produce low dust, which suits a family crossover. See our ceramic brake pads.

Sources

1. MotorSafety.org - Mitsubishi recalls vehicles with defective brakes - SR-18-002 rear caliper and parking brake shaft corrosion recall, 2014-2016 Outlander, more than 170,000 vehicles, January 2016 anticorrosion coating
2. Consumer Reports - Mitsubishi recalls SUVs to fix parking brakes - NHTSA campaign 20V741, 21,758 2016 Outlander and Outlander Sport, rear caliper assembly replacement
3. Mitsubishi Outlander 2017 service manual - Maintenance mode (vehicles with electric parking brake) - maintenance mode procedure required to replace rear pads and rotors
4. Bendix - Bendix explains brake bias - front brake bias, forward weight transfer, larger front rotors, stability control applying individual brakes