2021 Acura RDX Service and Repair Manual

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Factory-Grade Data

The 2021 Acura RDX service and repair manual is a practical, OEM-style reference for maintenance, diagnostics, and repair work. You’ll get step-by-step procedures, specifications, torque values, diagrams, and system information to help you troubleshoot accurately and finish jobs faster.

Ideal for professional technicians and DIY owners, this manual covers core vehicle systems including engine, brakes, steering, suspension, HVAC, and wiring diagrams. Instant digital access after purchase.

Trims covered

  • SH-AWD Sport Utility 4-Door
  • Base Sport Utility 4-Door
  • PMC Edition Sport Utility 4-Door
  • Tech Sport Utility 4-Door
  • A-Spec Sport Utility 4-Door

Engines covered

  • 2.0L 1996CC 122Cu. In. l4 GAS DOHC Turbocharged

Index / Table of contents

  • Body
  • Body Repair
  • Body Repair Basic
  • Brakes
  • Control System DTCs
  • Driving Support & Restraints
  • Engine
  • HVAC
  • Network Communication
  • Paint Repair Basic
  • Steering
  • Suspension
  • Symptom
  • Trans/Driveline
  • Vehicle General Information
  • Wiring Diagrams

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Vehicle Safety Data

2021 Acura RDX Recalls & Complaints

NHTSA #21V93900002/12/2021Component: POWER TRAIN:DRIVELINE:DRIVESHAFT

Honda (American Honda Motor Co.) is recalling certain 2021 Acura RDX and 2022 CR-V Hybrid vehicles. A component in the right or left front driveshaft may have been improperly heat-treated, which coul

Consequence

Driveshaft failure can cause a sudden loss of drive power, or cause the vehicle to roll away when pa

Remedy

Dealers will replace the right or left front driveshaft as necessary, free of charge. Owner notific

NHTSA #24V06400001/02/2024Component: AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION:FRONT PASSENGER

Honda (American Honda Motor Co.) is recalling certain 2020-2022 Pilot, Accord, Civic sedan, HR-V, Odyssey, 2020 Civic coupe, Fit, 2021-2022 Civic hatchback, 2021 Civic Type R, Insight, 2020-2021 CR-V,

Consequence

An air bag that deploys unintentionally during a crash can increase the risk of injury.

Remedy

Dealers will replace the seat weight sensors, free of charge. Owner notification letters were maile

TSB #11024891

"Service Bulletin - A pop noise can occur from the rear roof area when turning into driveways, bumps, or on an incline due to, in some cases, the panoramic roof frame mounting bolts are unable to maintain the necessary clamp force. This can

TSB #11023274

Service Bulletin - Oil leak at the cam chain tensioner inspection cover due to and insufficient sealant adhesion on the inspection cover.

TSB #11019258

Service Bulletin - The front and/or rear brakes make a high-pitched squeal when the brakes are lightly applied at 24 km/h (15 mph) or less, with ambient temperatures below 10C (50F).

TSB #11019244

Service Bulletin - The front and/or rear brakes make a high-pitched squeal when the brakes are lightly applied at 24 km/h (15 mph) or less, with ambient temperatures below 10C (50F).

TSB #11018501

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2025 RDXs and 2022-2025 MDXs with a client complaint of a pop noise in the rear sunroof area. Clients may describe a single pop noise heard while driving ov

TSB #11018015

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2025 RDXs and 2022-2025 MDXs with a client complaint of a pop noise in the rear sunroof area. Clients may describe a single pop noise heard while driving ov

TSB #11012814

Service Bulletin - A coaxial cable terminal was not manufactured to proper specifications. An improperly manufactured terminal may lead to poor communication in the media-oriented system (MOST) bus network which can potentially affect the a

TSB #11008048

Owner Notification Letter - A coaxial cable terminal was not manufactured to proper specifications. An improperly manufactured terminal may lead to poor communication in the media-oriented system (MOST) bus network which can potentially aff

Showing the 8 most recent of 193 technical service bulletins on file with NHTSA.

20250609Component: VEHICLE SPEED CONTROLCrash reported

Drove into parking lot and as I was pulling into the parking spot next to the building, the vehicle started to surge forward as if I had my foot on the gas instead of the brake. The sudden surge cause

20250609Component: ENGINECrash reported

Drove into parking lot and as I was pulling into the parking spot next to the building, the vehicle started to surge forward as if I had my foot on the gas instead of the brake. The sudden surge cause

20250609Component: UNKNOWN OR OTHERCrash reported

Drove into parking lot and as I was pulling into the parking spot next to the building, the vehicle started to surge forward as if I had my foot on the gas instead of the brake. The sudden surge cause

20230408Component: SERVICE BRAKESCrash reported

While sitting in a long row of stopped vehicles at a traffic light for an extended amount of time due to an accident I had the Automatic Brake Hold feature activated { I did not have to have my foot o

20230408Component: ENGINECrash reported

While sitting in a long row of stopped vehicles at a traffic light for an extended amount of time due to an accident I had the Automatic Brake Hold feature activated { I did not have to have my foot o

Showing the 5 most serious of 146 complaints filed with NHTSA.

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