2020 model year · 10,720+ owner reports · Updated April 2026
According to Au7o's analysis of 10,720+ owner reports, the 2020 Mazda CX-5 has 6 documented known issues, with 1 rated critical. The most serious is Defective Fuel Pump (Denso Recall). The most commonly reported issue is Defective Fuel Pump (Denso Recall) with 3,200 owner reports. Across all issues, repair costs range from $0 to $0. DIY maintenance guides at au7o.io.
On the 2019-2021 Mazda CX-5, low-pressure fuel pump impellers can deform, causing pump failure and engine stalling without warning. Part of massive global recall affecting 19+ million vehicles across multiple manufacturers.
Dealer replaces fuel pump free of charge under recall. Contact Mazda dealer with VIN to check recall status.
Parts and tips from 3,200+ owners who fixed this issue
On the 2013-2022 Mazda CX-5, wheel bearings fail prematurely due to impact damage (potholes, curbs), contamination from water/salt/grit, or manufacturing defects. Common issue across all model years.
Replace wheel bearing hub assembly. Should be covered under warranty if caught early (within 36,000 miles).
Parts and tips from 890+ owners who fixed this issue
On the 2013-2020 Mazda CX-5, clunking, knocking, or rattling from front suspension caused by dry strut mount bearings, loose sway bar links, worn ball joints, or loose crossbar/cowl bolts.
Grease strut mount bearings, tighten crossbar/cowl bolts to proper torque, replace sway bar links or worn suspension components as needed.
Parts and tips from 1,560+ owners who fixed this issue
On the 2013-2023 Mazda CX-5, direct-injection Skyactiv engines accumulate carbon deposits on intake valves due to oil vapors from the PCV system. Without port injection to clean valves, carbon can fuse to valve surfaces over time, typically appearing around 65,000+ miles.
Walnut blasting intake valves to remove carbon deposits. Preventive maintenance using fuel additives (Techron, Sea Foam, Lucas) every 5,000-10,000 miles can help reduce buildup.
Parts and tips from 2,100+ owners who fixed this issue
On the 2014-2021 Mazda CX-5, the Connectivity Master Unit (CMU) fails, causing the infotainment screen to go black, flicker, freeze, or loop repeatedly. Often caused by corrupted firmware, faulty Nav SD card contacts, or failing internal memory.
Try system reset (hold nav + mute while in reverse), battery disconnect for 10 minutes, or firmware update. If unsuccessful, CMU replacement required.
Parts and tips from 1,850+ owners who fixed this issue
On the 2017-2021 Mazda CX-5, interior door panels rust due to improper drainage design allowing water accumulation. Some colors (Soul Red, Machine Grey) have thin paint causing premature rust bubbling on roof and body panels.
Fix door drainage issues by clearing drain holes, sand and repaint affected areas. May require body panel replacement for severe cases. Limited warranty coverage.
Parts and tips from 1,120+ owners who fixed this issue
ENGINE
Mazda North American Operations (Mazda) is recalling certain 2018-2019 CX-5, Mazda6, and 2019 Mazda3 vehicles. A software error in the powertrain control module (PCM) may cause the engine to stall.
FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
Mazda North American Operations (Mazda) is recalling certain 2018 Mazda3, Mazda6, 2019 CX-3, 2018-2019 MX-5, CX-5, CX-9, and 2019-2020 Mazda2 vehicles. The impeller inside the low-pressure fuel pump may crack and deform, potentially causing the fuel pump to fail.
Enter your VIN at NHTSA.gov to check recalls specific to your vehicle.
Don't see your problem? Describe your symptoms to get a diagnosis, or get a full repair guide.
According to Au7o's analysis of 10,720+ owner reports, the 2020-2020 Mazda CX-5 has 6 documented issues. The most frequently reported are: Defective Fuel Pump (Denso Recall), Carbon Buildup on Intake Valves (Skyactiv), Infotainment System CMU Failure (Black Screen). Of these, 1 is rated critical and should be addressed promptly.
The 2020-2020 Mazda CX-5 has 6 known issues documented across 10,720+ owner reports. 1 issue is rated critical: Defective Fuel Pump (Denso Recall). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
Low-pressure fuel pump impellers can deform, causing pump failure and engine stalling without warning. Part of massive global recall affecting 19+ million vehicles across multiple manufacturers. Severity: high.
Direct-injection Skyactiv engines accumulate carbon deposits on intake valves due to oil vapors from the PCV system. Without port injection to clean valves, carbon can fuse to valve surfaces over time, typically appearing around 65,000+ miles. Severity: medium.
The Connectivity Master Unit (CMU) fails, causing the infotainment screen to go black, flicker, freeze, or loop repeatedly. Often caused by corrupted firmware, faulty Nav SD card contacts, or failing internal memory. Severity: medium.
Interior door panels rust due to improper drainage design allowing water accumulation. Some colors (Soul Red, Machine Grey) have thin paint causing premature rust bubbling on roof and body panels. Severity: medium.
Wheel bearings fail prematurely due to impact damage (potholes, curbs), contamination from water/salt/grit, or manufacturing defects. Common issue across all model years. Severity: medium.
Clunking, knocking, or rattling from front suspension caused by dry strut mount bearings, loose sway bar links, worn ball joints, or loose crossbar/cowl bolts. Severity: low.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.
