Representative 2020 model. Photo: Calreyn88, Wikimedia Commons, CC BY-SA 4.0

Recalls & complaints · NHTSA data

2021 Audi S4 recalls

Every recall campaign and owner complaint NHTSA has on file for the 2021 model year. Not every vehicle is affected by every campaign: check a specific car by VIN below.

Recall campaigns: 4
Park-it warnings: 0
Complaints: 2
Latest campaign: Oct 5, 2022

Recall summary by component4

NHTSA Recalls API · cached ≤24 h

Component	Campaigns	Latest	Campaign IDs
Back over prevention	1	Oct 5, 2022	22V742000
Tires	1	Jan 26, 2022	22V034000
Seat belts	1	Aug 5, 2021	21V606000
Suspension	1	Apr 26, 2021	21V295000

Safety recalls4

NHTSA Recalls API · cached ≤24 h

0Park-it warnings

0Fixable over the air

Oct 5, 2022Latest campaign


Oct 5, 202222V742000	Back over prevention: display function A blank rearview camera display can reduce the driver's rear visibility, increasing the risk of a crash. DetailsHide details for campaign 22V742000 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. 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. Campaign NHTSA 22V742000 · Oct 5, 2022
Jan 26, 202222V034000	Tires Rear axle misalignment may cause premature or uneven tire wear, increasing the risk of a crash. DetailsHide details for campaign 22V034000 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. 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. Campaign NHTSA 22V034000 · Jan 26, 2022
Aug 5, 202121V606000	Seat belts: rear/other retractor An unsecured child restraint system can increase the risk of injury during a crash. DetailsHide details for campaign 21V606000 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. 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). Campaign NHTSA 21V606000 · Aug 5, 2021
Apr 26, 202121V295000	Suspension: rear axle A broken lock nut may misalign the rear axle, causing a loss of control and increasing the risk of a crash. DetailsHide details for campaign 21V295000 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. 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. Campaign NHTSA 21V295000 · Apr 26, 2021

To see whether a recall is still open on your car, enter the VIN at nhtsa.gov/recalls or the Audi recall lookup. Recall repairs are free at a franchised dealer (federal law; see limits).

Owner complaints by component2

NHTSA Complaints API · cached ≤24 h

2Complaints filed

0Involving a crash

0Involving a fire

0Injuries reported

Component	Share	Complaints	%	Crashes	Fires	Injuries
Electrical system		1	50	0	0	0
Unknown or other		1	50	0	0	0

An owner can tag several components, so percentages add up to more than 100. Complaints are unverified owner reports, de-duplicated by NHTSA ODI number.

Latest reports

Electrical system
“The contact owns a 2021 Audi S4. The contact stated that while driving at an undisclosed speed, the vehicle experienced a loss of automotive power. The check engine warning light was illuminated.”
Filed 09/25/2025 · ODI 11689741
Unknown or other
“2021 audi s4. Consumer writes in regard to nhtsa safety recall 22v-742. The consumer is disgusted and disatisfied with the audi service department procedures for performing the recalls.”
Filed 01/31/2023 · ODI 11504613

Other Audi S4 model years

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2021 Audi S4 recall questions

How many recalls does the 2021 Audi S4 have?

NHTSA lists 4 safety recall campaigns for the 2021 Audi S4. The most recent, 22V742000 (reported October 5, 2022), concerns back over prevention. Not every vehicle is covered by every campaign; check a specific car by VIN.

What is the most common complaint about the 2021 Audi S4?

Electrical system is the most-reported component, named in 1 complaint out of 2 filed with NHTSA (50%). Complaints are unverified owner reports.

How do I check if a recall is open on my 2021 Audi S4?

Enter the 17-character VIN at nhtsa.gov/recalls or the Audi recall lookup. That shows campaigns still unrepaired on that exact car. Safety recall repairs are free at a franchised Audi dealer.

Check a specific Audi by VIN

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