Brake Disc Caliper problems of the 2016 Mazda CX-5

The contact owns a 2016 Mazda Cx-5. The contact stated that while driving at an undisclosed speed, there was an abnormal sound coming from the vehicle, and the message “Smart brake malfunction” was displayed. The vehicle was taken to an independent mechanic, where it was diagnosed with catastrophic brake caliper failure. The contact was unsure if the vehicle needed to be repaired. The vehicle was then taken to the dealer, where it was diagnosed, and it was determined that the passenger’s side inner cv joint had failed and needed to be replaced. The vehicle was not repaired. The dealer informed the contact that the vehicle could not be driven due to the severe failure. The manufacturer was not made aware of the failure. The approximate failure mileage was 125,385.

Vehicle has only 29,370 miles driven. The right rear brake lining has undue wear at 3 mm. The left rear brake lining measures 5-6 mm. During routine servicing the Mazda technician discovered abnormal brake wear. Mazda dealership recommends replacement of both rear calipers. Mazda corporation is unwilling to help. It appears maxda Cx-5 is having problems with their epb and is unwilling to admit it.

The electronic parking brake on my 2016 Mazda Cx-5 started acting strange a few weeks ago. At first it would not disengage after starting the car, but would do so after a couple of restarts. Then it started engaging slightly while driving, with no indications. Stopping and restarting the engine a few times would usually release it. A couple of days ago this happened and the brake would not disengage after several restarts and I was going to call a tow truck. It disengaged after about 30 minutes. As I understand it Mazda knows that the rear caliper is defective (see technical service bulletin r052/16c). This should be a recall item because this is not safe.

While driving approx. 40 mph on a state road, my tpms warning light went on. At first I thought it was a simple tire pressure issue, but then I began to smell burning. I stopped my car and saw smoke coming from my rear right (passenger side) wheel. I promptly brought the car to a 3rd party mechanic and they informed me the caliper remained engaged and my rotors were overheating. They tried contacting Mazda dealerships and 3rd party sources for either new or rebuilt caliper but the part was out of stock and on backorder with no estimated date when it would be replenished. My car is still unrepaired and I cannot drive it as the excessive heating of the rotor could disable my braking ability. This seems to be a common issue with other Cx-5 models.

At 15k miles the driver's side rear brake caliper failed, causing the brake to drag and overheat during a 400 mile holiday roadtrip. By the time the problem was discovered by the elderly owners, the rear pads were worn down to the backing plates and the rotors were heavily scored. There were no warning lights illuminated or other indication alerting the driver to the problem. This is a known issue with the rear calipers and electric parking brake (epb) given the tsbs that Mazda has published on the matter as well as the number of complaints online and with the NHTSA. Mazda replaced the failed driver's side caliper under warranty but declined to cover the damaged pads and rotor caused by their defective assembly even after escalting the issue to corporate. This should be a safety recall but Mazda would rather jeopardize the safety of their customer (by not proactively replacing the passenger side caliper) and charge them $500 for a brake job to correct collateral damage caused by their defective parts. We have been long-time loyal customers of Mazda but they have acted unethically in this instance and did not fulfill their warranty claim in good faith.

42k miles left rear wheel became super hot, took to mechanic, left year caliper was locked up , called Mazda they can do nothing car out of warranty, I have seen many of these cars with same issue.

The emergency parking brake fails to properly release causing major damage to calipers, rotors, ad pads.

At 31,234 miles my mechanic said that my brake pads and rotars and tires needed to be replaced. When we was replacing them, the emergency brake and calipers seized up and he had to order parts (which took a while because of the number of issues with the emergency brake on my model of car). He said that the problems with the emergency brakes likely also caused wear and tear on my regular breaks and caused them to need to be replaced early.

The contact owns a 2016 Mazda Cx-5. While driving 25 mph, the emergency indicator illuminated and beeped. The contact noticed an abnormal burning odor and observed smoke from the rear passenger side of the vehicle. The vehicle was towed to a local dealer (Mazda of olympia, 2201 carriage st sw, olympia, wa 98502) where it was diagnosed that the caliper needed to be replaced; however, the parts were on backorder. The vehicle was not repaired. The manufacturer was not notified of the issue. The VIN was unknown. The failure mileage was 5,000.