2020 Mazda CX-5 Service and Repair Manual

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Factory-Grade Data

2020 Mazda CX-5 service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Designed for technicians and DIY owners, this manual helps you diagnose issues correctly, follow proven repair steps, and use wiring diagrams and system sections to track faults faster.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Electrical diagnostics with wiring diagrams
  • Coverage across major systems: engine, transmission/driveline, brakes, steering, suspension, HVAC, and more

Trims covered

  • GT Sport Utility 4-Door
  • Grand Touring Reserve Sport Utility 4-Door
  • GX Sport Utility 4-Door
  • Touring Sport Utility 4-Door
  • i Grand Touring Sport Utility 4-Door
  • Grand Touring Sport Utility 4-Door
  • GS Sport Utility 4-Door
  • Sport Sport Utility 4-Door
  • s Grand Touring Sport Utility 4-Door
  • I Sport Sport Utility 4-Door
  • Signature Sport Utility 4-Door

Engines covered

  • 2.5L 2488CC 152Cu. In. l4 GAS DOHC Naturally Aspirated
  • 2.5L 2488CC 152Cu. In. l4 GAS DOHC Turbocharged

Index / Table of contents

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams

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Vehicle Safety Data

2020 Mazda CX-5 Recalls & Complaints

No active recalls The 2020 Mazda CX-5 has no recalls on file with NHTSA.
TSB #11032104

DESCRIPTION Some vehicles may require the replacement of a damaged VIN plate or vehicle certification label. To obtain a replacement VIN plate (bulkhead-mounted and visible through the lower-left area of the windshield), contact DAG (Dealer

TSB #11032103

This Service Alert supersedes the previously issued SA listed below: The changes are noted in Red. SA-011/24 02/12/24, 06/06/24, 07/29/24 DESCRIPTION Mazda has developed factory recommended scheduled maintenance services that support all ma

TSB #11032102

This SA supersedes the previously issued bulletin(s) listed below. The changes are noted below in Red. SA-007/25 10/22/25, 06/02/25 and 02/03/25 DESCRIPTION The Mazda DCA-8000 is required for all warranty battery testing. If the Mazda DCA-8

TSB #11032101

This Service Alert supersedes the previously issued M-Tip(s) listed below. The changes are noted in Red text. MT-002/19 09/30/19 and 12/19/19 DESCRIPTION If an engine assembly is replaced after a catastrophic internal mechanical failure, cl

TSB #11032100

This Service Alert supersedes the previously issued SAs and bulletin(s) listed below: The changes are noted below in red. SA-010/23 02/09/23 DESCRIPTION Some customers may experience one or more electrical malfunctions after a vehicle body

TSB #11032019

This Service Alert supersedes the previously issued M-Tip(s) listed below. The changes are noted in Red text. MT-003/22 03/02/22 DESCRIPTION Some customers may complain about a tapping or knocking noise coming from the rear seat after fuel

TSB #11032003

This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red. 01-008/23 06/05/23 Some vehicles may exhibit rattling noises from the engine compartment and oil leakage from the drive belt auto tension

TSB #11030701

Subject: TSB 01-001/26 Warranty and Parts Kit Update INCLUDES: Warranty Extension Program - Special Service Program (SSP) D8 Check Engine Light ON with DTC P0126:00, 2018-2025 CX-5, 2019-2023 Mazda3, 2019-2022 CX-3, 2018-2021 Mazda6, 2020-2

Showing the 8 most recent of 444 technical service bulletins on file with NHTSA.

20240924Component: SERVICE BRAKESCrash reported1 injured

The vehicle accelerated on its own, while I was parking. My foot was on the brake when the vehicle just took off. It continued to accelerate until a building stopped it. I continued to brake but the

20240924Component: VEHICLE SPEED CONTROLCrash reported1 injured

The vehicle accelerated on its own, while I was parking. My foot was on the brake when the vehicle just took off. It continued to accelerate until a building stopped it. I continued to brake but the

20240924Component: UNKNOWN OR OTHERCrash reported1 injured

The vehicle accelerated on its own, while I was parking. My foot was on the brake when the vehicle just took off. It continued to accelerate until a building stopped it. I continued to brake but the

20221013Component: AIR BAGSCrash reported1 injured

Airbags did not deploy when I crashed into a guard rail dragging for 40-50 feet.

20200922Component: SERVICE BRAKESCrash reported1 injured

BOUGHT A MAZDA CX5 JUNE 2020 AND IT WAS INVOLVE IN A ACCIDENT SEPT 17TH 2020 DO TO BRAKE FAILURE. MY MOTHER WAS DRIVING THE VEHICLE AND ATTEMPTED PARKING IN A APARTMENT COMPLEX WHEN THE VEHICLE FAILED

Showing the 5 most serious of 149 complaints filed with NHTSA.

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