RecallRepo

2020 Audi S4 Recalls

Recalls on record Updated July 2026

The 2020 Audi S4 has 3 NHTSA recall campaigns affecting an estimated 280,383 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 34 complaints with NHTSA, most often about the electrical system. Last updated July 5, 2026.

Recall campaigns

TIRES 22V034000 2022-01-26 31,058 affected
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,…

Consequence

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.

AIR BAGS 21V874000 2021-11-10 208,332 affected
Defect

Volkswagen Group of America, Inc. (Audi) is recalling certain 2017-2020 A4 Allroad, A4 Sedan, 2018-2019 RS5 Coupe, 2019 RS5 Sportback, 2018-2020 A5 Cabriolet, A5 Coupe, A5 Sportback, S4 Sedan, S5 Cabriolet, S5 Coupe, and Audi S5 Sportback vehicles. The cable connecting the seat heater to the Passenger Occupant…

Consequence

A disabled passenger air bag increases the risk of injury in the event of a crash.

Remedy

Dealers will replace the connecting cable and either the heating mat or entire seat cover, free of charge. Owner notification letters were mailed January 7, 2022. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 74E3. This recall is an expansion of Recall 19V-547…

SUSPENSION 21V295000 2021-04-26 40,993 affected
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…

Consequence

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.

Complaints by component

ELECTRICAL SYSTEM
14
BACK OVER PREVENTION: WARNINGS
8
UNKNOWN OR OTHER
5
BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING
4
FORWARD COLLISION AVOIDANCE: WARNINGS
1
LANE DEPARTURE: BLIND SPOT DETECTION
1
VISIBILITY/WIPER
1
Total complaints34

What owners report

Verbatim reports filed with NHTSA, lightly edited for readability and with personal information removed.

“The audi mmi malfunctions and reboots randomly while driving. Possibly being a software issue. There is a tsb code that the dealer used to reference for me ( tsb 2078437/1), but I cannot find it on the nhtsa website. The reboot issue shuts off all functions associated with it, including, but not…”

ELECTRICAL SYSTEM · reported 2025-07-26

“The main infotainment system is stuck restarting every 1-2 minutes. When the car is put into reverse, the rear back up camera will turn off while the vehicle is in motion and not resume.”

ELECTRICAL SYSTEM · reported 2025-07-17

“The main infotainment system is stuck restarting every 1-2 minutes. When the car is put into reverse, the rear back up camera will turn off while the vehicle is in motion and not resume.”

BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING · reported 2025-07-17

“The main infotainment system is stuck restarting every 1-2 minutes. When the car is put into reverse, the rear back up camera will turn off while the vehicle is in motion and not resume.”

BACK OVER PREVENTION: WARNINGS · reported 2025-07-17

“The vehicle software (known as audi mmi) has been continuously rebooting every 30 seconds after the vehicle is started. This causes the entire dashboard (and entertainment screen) to repeatedly reboot which is very distracting while driving. While backing out of a parking spot, the mmi system…”

LANE DEPARTURE: BLIND SPOT DETECTION · reported 2025-07-16

“The vehicle software (known as audi mmi) has been continuously rebooting every 30 seconds after the vehicle is started. This causes the entire dashboard (and entertainment screen) to repeatedly reboot which is very distracting while driving. While backing out of a parking spot, the mmi system…”

BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING · reported 2025-07-16

“The vehicle software (known as audi mmi) has been continuously rebooting every 30 seconds after the vehicle is started. This causes the entire dashboard (and entertainment screen) to repeatedly reboot which is very distracting while driving. While backing out of a parking spot, the mmi system…”

BACK OVER PREVENTION: WARNINGS · reported 2025-07-16

“I am submitting a formal complaint regarding a persistent and dangerous issue with the mmi (multi media interface) system in my 2020 audi s4. Since february 2025, the system has been spontaneously rebooting both while the vehicle is idling and in motion. When this occurs, the screen goes black and…”

UNKNOWN OR OTHER · reported 2025-07-01
Sources & methodology

Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2020 Audi S4 as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.