2014 Mazda CX-5: check engine light

Filed Dec 6, 2023 · Engine · 120,000 miles · CA

The contact owns a 2014 Mazda CX-5. The contact stated that while driving at 35 MPH, the check engine warning light illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the heater core. The contact was informed that the heater core needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 57,311.

Filed Aug 24, 2019 · Transmission · 92,912 miles · CA

I was slowly accelerating away from a stop light in traffic on a 4 lane highway when suddenly the transmission felt like it was shifting from 1st gear into reverse instead of 2nd gear. My awd automatic transmission mazda shook and it felt like it was shifting from 1st to reverse and back again repeatedly. I put it in neutral and coasted through the intersection. I stopped in the middle of the right lane and checked the gear lever which was in drive, no warning or check engine lights. I put it in gear and slowly drove forward and it started jerking again and I was forced to coast to a wider spot so I wouldn't get rear ended. I had it towed by aaa (the local driver reported I was the 6th mazda cx-5 they towed for similar symptoms). They towed it to their recommended transmission shop and after a scan, the mechanic couldn't find any codes. He test drove it and it exhibited the exact same symptoms. He said it was probably electrical or software and he couldn't fix it. I'll get it towed to mazda monday. My warranty from car max ran out 300 miles ago, they've been very helpful, but not much they can do until we identify the cause.

Filed Feb 13, 2019 · Driver assistance, Electrical · 68,000 miles · TX

My wife complained about how she tried to accelerate and it didn't work one random time while she was driving. I took it around the neighborhood to test it out. I wasn't even out of my block before the incident happened. I was in the middle of a turn and everything just stopped. I was going less than 10 MPH when it happened. Several lights came on on the dashboard. The traction control light, the at light, the TPMS light, and the check engine light. Something bad happened and this could have killed someone had it happened on the highway. I turned the car off and on and now only the check engine light is on. I was able to drive it again at that point.

Filed Mar 6, 2018 · Electrical, Transmission · 66,938 miles · CT

Check engine light and a/t warning light remain on. Unexpected issue does not appear to have any cause that is based on driver usage of vehicle. Oem blogs for various owners of this model appear to have similar issues. Manufacturer is charging customers to update the TCM and PCM codes on programming boards, for an issue it is aware of. Codes appear to arise randomly, and not as part of vehicle being in motion.

Filed Feb 25, 2018 · Driver assistance, Engine · 54,000 miles · NY

I was driving on a main road and all of a sudden it seems as if the car lost power (2014 mazda cx-5 grand touring). I could not accelerate and a lot of the lights on the dash lit up (TPMS, traction control, check engine light). Thankfully I was only a mile from home and was able to turn around and make it home, but I could have been in a serious accident with my infant in the car as I was about to get on the highway. I was only able to go about 10 MPH, car kept revving, sputtering and vibrating. Once I got home I shut the car off for a few minutes. It starts no problem but same lights keep flashing and I feel the whole car vibrating, I don't feel safe if this car. This is a serious safety issue, car is only 3 years old with 50,000 miles on it, it is not normal for a car to completely lose power to the point where it almost comes to a complete stop. Mazda needs to issue a recall before someone gets into a serious accident because of this!

Filed Jan 9, 2018 · Electrical · 75,000 miles · NJ

Accelerated from a traffic light and check engine and traction control light came on and car would not actually accelerate. Luckily I was in front of my workplace, but earlier during the drive, the bluetooth console powered completely down and restarted itself. Not sure if electrical or what. Very scary.

Filed Sep 15, 2017 · Electrical, Lights · 73,000 miles · IN

When I start the car all the dash lights illuminated and stayed on as I drove the car. When I turned on the right turn signal all the warning lights flashed rapidly the navigation, electrical system shut down and the car started to die. The service engine light stays lit the warning about a power steering failure, brake failure and keyless entry problem, ABS, speed monitoring tire pressure all comes up in the warning area. The power steering does fail making it hard to turn. In doing research on the issue it comes from a faulty ground cable issue on the right side of the car. I have had this occur 3 different times now on this car.

Filed Sep 15, 2017 · Electrical, Engine · NJ

Vehicle lost power and would not accelerate, check engine, tmps and traction control lights illuminated on the dash. Luckily didn't happen on a highway. Ignition coil and spar plug were replaced. Car mileage 48000, spark plugs should last to 75000 miles according to manufacturer.

Filed Jul 6, 2017 · Electrical, Engine · TX

Tl* the contact's daughter owns a 2014 mazda cx-5. While driving, the contact heard a clicking noise under the hood of the vehicle. The contact could not determine the location of the clicking noise. The traction control and check engine warning indicators illuminated. On another occasion, the contact's daughter attempted to start the vehicle, but it failed to start. The vehicle was taken to an independent mechanic who diagnosed that the battery drained due to it not grounding one of the circuits. Also, the power control module needed to be replaced. The vehicle was not repaired. The independent mechanic stated that no parts were available to repair the vehicle at any of the local dealers. The manufacturer was not notified of the failure. The failure mileage was unavailable.

Filed Aug 14, 2016 · Driver assistance, Electrical · 53,000 miles · MN

No issues leading up to this point with my cx-5. Went to start the car and all the dash lights illuminated and remained on. As I began to drive, I attempted to use the right hand turn signal and the warning lights flashed rapidly as the electrical system, bluetooth, navigation, and entire engine shut off. I stopped the car, put it in park, and tried restarting. When it did, half of the warning lights were on in park, including the service engine light, and when put in drive the rest of the lights came back on. I tried the right signal again (in park) and the same issue occurred, with the end result of the engine turning off. As I drove with these lights on, new warnings came on and off, including loss of power to my steering(making it more difficult to turn), ABS, speed monitoring, tire pressure, blind spot monitoring, horn, and basically anything else controlled electronically. I ran the codes and got long list, with most of them being connected to loss of communication. Some codes were: u0121, p0500, p0685. I took it to the mazda dealer, and after 2 hrs of diagnostic there were unable to find the problem and said they would need more time (and money, obviously). From reading other blogs/comments with the similar issue, seems to be a faulty ground wire. This is something that is extremely dangerous and seems to be occurring a lot in this model. Mazda needs to address this issue asap

Filed Apr 1, 2016 · Driver assistance, Engine · 55,000 miles · WA

I was traveling about 35mph up a slight incline when the engine lost power and started shaking. The traction control system, tire monitoring, and check engine light all came on at the same time. The engine didn't have any power even when I pressed all the way on the accelerator I couldn't get it to go any faster than 45mph.

Filed Mar 21, 2016 · Engine · 23,124 miles · AR

On 3/20/16, I was driving on a local road when the car just stopped accelerating. The dashboard lit up with an engine light icon, a red exclamation point and a host of errors (scbs, at malfunction, engine inspection required and something with a t). I coasted to a parking lot, turned the car off for a couple minutes and restarted. The same lights and error messages were there but the car accelerated when pushing the gas petal but more slowly than it should and after 2 blocks, it just stopped again. My 5 month old granddaughter was in the car with me. If this had happened on a busy street or the highway, we could have been killed.