Three problems related to automatic transmission control module have been reported for the 2013 Mazda CX-5. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2013 Mazda CX-5 based on all problems reported for the 2013 CX-5.
Mazda cx 5 2013, has intermittent loss of power. Most noticeable when trying to cross the highway &/or merge into traffic. (scary) took it in for Mazda recall 8915k pcm, this did not fix the issue. Mazda service tech had same issue. (note I took it to a local ase certified shop where it did the same thing prior to taking to Mazda--which is why I took it to the dealer). So no solution and not safe to drive.
While driving vehicle on frwy, started losing power fast. As if the engine turned off. At light, traction light, stability control light and check engine light came on. Pulled to side of frwy turned car off, sat there in disbelief. I then turned the vehicle back on - only check engine light stayed on. Had power as if nothing had happen diag found code p1738, p0847. Galpin Mazda called tech line and they were told to perform a reflash to the pcm. This happen again about 2 months later. But this time all warning lights turned off after restarting. I will mention it on my next service visit.
I was driving at the listed speed on the new jersey turnpike. Without warning, the vehicle went from sixth gear to fourth, rapidly losing speed in the far left lane. The tire pressure indicator light came on flashing, and the traction control light came on solid yellow. I pulled the vehicle onto the shoulder to check the tires, per the indicator, and noticed none of the tires was deflated. When I restarted the vehicle, the tire pressure and traction lights were solid yellow, along with the engine and "at" transmission light. While there was no noticeable effect on vehicle operation once restarted, I could not use the select-a-gear feature of my transmission. I was told at the dealership where I brought the vehicle that there were issues with the transmission control module, and that software updates were required. The vehicle was returned several days later, with the warning lights resolved, but told that they were uncertain as to whether it was a definitive fix. There have been no recurrences since the original incident.