Seven problems related to power train have been reported for the 2020 Mazda CX-5. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2020 Mazda CX-5 based on all problems reported for the 2020 CX-5.
Started smelling burning oil in 2020 Mazda Cx-5 non turbo with 34,000 miles. Auto shop states it is a cracked cylinder that will cost over $7,000 to repair. A google search shows it is a known issue but Mazda has not extended the warranty for non-turbo models.
Vehicle suffering from Mazda TSB 05-005/23 chirping noise from transaxle on 3rd to 4th gear upshift. Vehicle diagnosed by dealership as needing new transaxle on 17oct25. Diagnosis stated issue started ~32k miles.
Driving about 20 to 35 mph accelerating I would get a distinctive one time chirp noise with a little bit of a stutter it happens every time I go about that speed accelerating. Thankfully my car was under pre-owned warranty but I have to get now. Three transmission flushes I have to pay $400 for and they have to replace a torque converter. I just got the car 10 days ago and only has 61,000 mi on it. Over the long term this could damage the transmission cause more and more issues.
The issue is iron is depositing in the transmission due to a bad torque converter, this is a known issue with Mazda and it doesn't seem to be something they are willing to cover and many people are experiencing this especially with the cx5 models. It causes jerking and chirping noise, plus will eventually ruin the transmission and will cause serious safety issues. Just look into the reddit threads.
The contact owns a 2020 Mazda Cx-5. The contact stated that the vehicle jerked abnormally while depressing the accelerator pedal. There was no warning light illuminated. The vehicle was taken to a dealer where the vehicle was diagnosed with transmission failure. The manufacturer was notified by the dealer about the failure, and the manufacturer agreed to partially cover the cost of the repair. The vehicle was not repaired and remained with the dealer. The failure mileage was approximately 52,000.
Defective transmission causes metal fragments to break off and over time damage transmission.
Low oil level indicator came on at roughly 55,000 miles only about 3000 miles after last oil change. Car was immediately stopped and towed to the nearest Mazda dealer. Dealership confirmed oil level was low. Car appears to me consuming excess oil. Oil consumption test pending.
| Power Train problems | |
| Automatic Transmission Control Module (tcm/pcm/tecm) problems |