2021 Audi A4 Recalls

NHTSA lists 4 open recalls for the 2021 Audi A4. Recall repairs are free at any franchised dealer, however old the vehicle is.

Recall data as of Oct 17, 2026 — NHTSA. For a live answer, run the check yourself, or see the latest recalls.

Rear/Other Retractor

SEAT BELTS:REAR/OTHER:RETRACTOR

What's wrong:
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2021 Volkswagen ID4, Audi A4 Allroad, A4 Sedan, A5 Cabriolet, A5 Coupe, A5 Sportback, A6 Allroad, A6 Sedan, A7, A8, E-Tron Quattro, E-Tron Sportback Quattro, Q3, Q5, Q5 Sportback, Q7, Q8, RS5 Sportback, RS5 Coupe, RS6 Avant, RS7, RSQ8, S4 Sedan, S5 Cabriolet, S5 Coupe, S5 Sportback, S6 Sedan, S7, S8, SQ5, SQ5 Sportback, SQ7, SQ8, and 2021-2022 S3 Sedan vehicles. The rear seat belt automatic locking retractors may deactivate early, which can prevent the child restraint system from securing properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
Risk:
An unsecured child restraint system can increase the risk of injury during a crash.
What to do:
Dealers will inspect, and replace as necessary, the middle-rear seat belt assemblies, free of charge. Owner notification letters were mailed August 27, 2021. Owners may contact Volkswagen customer service at 1-800-893-5298 and Audi customer service at 1-800-253-2834. Volkswagen's numbers for this recall are 69CR (VW) and 69CS (Audi).

NHTSA campaign 21V606000 — quote this at the dealer.Reported Aug 5, 2021.

Tires

What's wrong:
Volkswagen Group of America, Inc. (Audi) is recalling certain 2019-2021 Audi A5 Sportback, RS5 Coupe, RS5 Sportback, S5 Sportback, 2020-2021 A4 Allroad, A4 Sedan, A5 Cabriolet, A5 Coupe, A6 Allroad, A6 Sedan, A7, A8, Q5, S4 Sedan, S5 Coupe, S5 Cabriolet, S6 Sedan, S7, S8, SQ5, 2021 Q5 Sportback, Q7, Q8, RS6 Avant, RS7, RSQ8, SQ5 Sportback, SQ7, and SQ8 vehicles. The rear axle alignment may not have been inspected after the repairs for Recall 21V-295 (42L1) were performed.
Risk:
Rear axle misalignment may cause premature or uneven tire wear, increasing the risk of a crash.
What to do:
Dealers will inspect the rear axle, adjust the alignment as necessary, and replace any prematurely or unevenly worn tires, free of charge. Owner notification letters were mailed March 3, 2022. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 42L5.

NHTSA campaign 22V034000 — quote this at the dealer.Reported Jan 26, 2022.

Axle Non-Powered Axle Assembly

SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY

What's wrong:
Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Q7, Q8, Q5 Sportback, SQ5 Sportback, RS6 Avant, RS7, RS Q8, 2020-2021 Audi S6 sedan, Q5, A8, S8, A7, A6 Allroad, A5 Cabriolet, A4 sedan, A4 Allroad, SQ5, S7, A6 sedan, S5 coupe, S4 sedan, S5 Cabriolet, A5 coupe, 2019-2021 RS5 coupe, A5 Sportback, S5 Sportback, RS5 Sportback vehicles. The lock nut on the trailing arm of the rear axle may break due to stress corrosion.
Risk:
A broken lock nut may misalign the rear axle, causing a loss of control and increasing the risk of a crash.
What to do:
Dealers will replace the lock nuts and, if necessary, the associated bolts, free of charge. Owner notification letters were mailed June 4, 2021. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 42L1.

NHTSA campaign 21V295000 — quote this at the dealer.Reported Apr 26, 2021.

Display Function

BACK OVER PREVENTION:DISPLAY FUNCTION

What's wrong:
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2021 Audi A8, RS7, RS6 Avant, RS5 Sportback, RS5 Coupe, Q8, Q7, Q5 Sportback, S4 Sedan, Q5, A7, A6, A6 Allroad, A5 Sportback, A5 Coupe, A5 Cabrioleet, A4 Sedan, A4 Allroad, E-Tron Sportback Quattro, SQ7, S5 Cabriolet, E-Tron Quattro, SQ8, SQ5 Sportback, SQ5, S8, S7, S6 Sedan, S5 Sportback, S5 Coupe, 2022 E-Tron GT, and 2021-2022 RSQ8 vehicles. Due to a software issue, a blank or black screen may be displayed instead of the rearview camera image when the vehicle is placed in reverse gear. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
Risk:
A blank rearview camera display can reduce the driver's rear visibility, increasing the risk of a crash.
What to do:
Dealers will update the infotainment unit software, free of charge. Owner notification letters were mailed October 25, 2022. Owners may contact Audi's customer service at 1-800-253-2834. Volkswagen's number for this recall is 91DZ.

NHTSA campaign 22V742000 — quote this at the dealer.Reported Oct 5, 2022.

Owner complaints

11filed with NHTSA · 0 in the last 12 months
Filed by yearpeak 2025
151617181920212223242526
Electrical System
3
Forward Collision Avoidance
2
Lane Departure
2
Power Train
2

3 involved a crash · 1 injury

Reported by owners to NHTSA and not verified. Complaints often surface a problem months before a recall.

See the complaints at NHTSA

Other Audi A4 years

Every year links to that vehicle's full recall page.

Audi A4, every year

How recall repairs work

  • Repairs are free at any franchised Audi dealer — regardless of the vehicle's age or whether you bought it new.
  • Bring the NHTSA campaign number; it's printed on each recall above and on the sheet you can print here.
  • Call ahead: some recalls are announced before parts are available, and the dealer can tell you when yours are in.
  • Your VIN tells the dealer whether your exact vehicle is affected — the free check accepts one and never stores it.

Keep the 2021 Audi A4

Save it to your free garage and we'll email you the day NHTSA files a new recall for it — free, next to its mileage, maintenance, and repairs.