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RECALLROADTHE CAMPAIGN RECORD

MODEL-YEAR RECALL REPORT

2021 Audi S4 recalls

NHTSA's September 21, 2026 snapshot lists 4 safety recall campaigns for the 2021 Audi S4, spanning 4 component groups. A model match does not confirm that a specific VIN is included.

Official source: NHTSA recall campaign file · Snapshot September 21, 2026

Distinct campaigns4not VIN-specific
Component groups4distinct top-level categories
Latest recordOctober 5, 2022report received
VIN resultNot checkeduse official lookup

01 / OFFICIAL CAMPAIGNS

2021 Audi S4 recall campaigns

The 2021 Audi S4 report contains 4 distinct NHTSA campaigns; the most recently received record is campaign 22V742000 dated October 5, 2022.
Component
BACK OVER PREVENTION
Report received
October 5, 2022
Potential units
170,296campaign-wide
Defect and consequence

Defect: 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.".

Why it matters: A blank rearview camera display can reduce the driver's rear visibility, increasing the risk of a crash.

Remedy

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.

Owner notification: October 25, 2022 · Filing manufacturer: Volkswagen Group of America, Inc.

Component
SUSPENSION, TIRES
Report received
January 26, 2022
Potential units
31,058campaign-wide
Defect and consequence

Defect: 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.

Why it matters: Rear axle misalignment may cause premature or uneven tire wear, increasing the risk of a crash.

Remedy

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.

Owner notification: March 3, 2022 · Filing manufacturer: Volkswagen Group of America, Inc.

Component
SEAT BELTS
Report received
August 5, 2021
Potential units
45,496campaign-wide
Defect and consequence

Defect: 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.".

Why it matters: An unsecured child restraint system can increase the risk of injury during a crash.

Remedy

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).

Owner notification: August 27, 2021 · Filing manufacturer: Volkswagen Group of America, Inc.

Component
SUSPENSION
Report received
April 26, 2021
Potential units
40,993campaign-wide
Defect and consequence

Defect: 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.

Why it matters: A broken lock nut may misalign the rear axle, causing a loss of control and increasing the risk of a crash.

Remedy

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.

Owner notification: June 4, 2021 · Filing manufacturer: Volkswagen Group of America, Inc.

02 / COMPONENT BREADTH

What defects are listed for the 2021 Audi S4?

The most frequent component groups in 2021 Audi S4 campaign records are Suspension (2), Seat Belts (1), Tires (1), Back Over Prevention (1); these counts describe filed campaigns rather than observed failure rates.
Suspension2
Seat Belts1
Tires1
Back Over Prevention1

03 / MODEL-YEAR CONTEXT

How the 2021 Audi S4 compares across model years

RecallRoad publishes 2 model-year reports for the Audi S4, spanning 2020–2021; each year keeps its NHTSA campaign count separate.
Open the complete Audi S4 model history →