Problems · NHTSA complaints

2021 Audi E-Tron problems

Owners filed 36 complaints about the 2021 Audi E-Tron with NHTSA between Jan 2021 and Jul 2026. The most-cited component is electrical system (24).

Complaints
36
Filed with NHTSA
Crashes
0
Reported by owners
Fires
1
Reported by owners
Injuries
0
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Electrical system24
  2. Power train9
  3. Engine7
  4. Service brakes3
  5. Structure1
  6. Forward collision avoidance1
  7. Vehicle speed control1
  8. Fuel/propulsion system1
  9. Other / unknown10

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Data from NHTSA Complaints API · synced Nov 11, 2026NHTSA vehicle page
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
20214
20228
20236
20249
20254
20265

Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.

03 —Owner reports

Top problems in owners’ words

Verbatim from NHTSA complaints, newest first

Electrical system

24 reports2 related recalls
“I own a 2021 Audi e-tron with approximately 58000 miles. Beginning in March 2026, the vehicle developed intermittent Virtual Cockpit/instrument-cluster problems with blank display. I reported the condition to Audi dealer of Princeton NJ. The vehicle subsequently experienced two dead 12-volt battery incidents and became inoperable. The second 12 volt battery was new. Following the most recent incident, the Audi dealer diagnosed the Virtual Cockpit/instrument cluster as causing a drain on the 12-volt battery and recommended replacement at a cost of approximately $3,500. The replacement part is unavailable, and Audi has provided no estimated delivery date. The vehicle has remained out of service since July 03rd 2026. This condition presents a potential safety concern because failure of the instrument cluster may prevent the driver from reliably viewing speed, warning indicators, vehicle status, range, and other safety-related information. The recurring 12-volt battery discharge may also leave the vehicle unexpectedly disabled. The vehicle is additionally showing an indicated range of only approximately 160 miles at 100% charge. Audi has not established whether…”
Owner complaint to NHTSAFiled Jul 22, 2026Electrical systemODI 11752046

Power train

9 reports
“Moisture build-up in the high-voltage electrical system through a faulty seal on the charging socket, which can cause a short circuit and significantly increase the risk of a vehicle fire. If you get a warning light saying "electrical system: fault," you should stop driving immediately, park outdoors away from structures, and not charge the vehicle. Braking problems caused by sub-standard welding within the ABS rotor and shaft. High-voltage battery modules that may overheat, also increasing the risk of fire. An infotainment unit that can become internally damaged when the vehicle is shut off, resulting in an inoperative rearview camera display a federal safety standard violation. This clearly shows the vehicle was badly manufactured, during a chip shortage in 2020. This vehicle is a complete failure by Audi and puts so many innocent peoples lives at risk.”
Owner complaint to NHTSAFiled May 15, 2026Power train, Electrical system, Service brakesODI 11738208

Engine

7 reports
“What component or system failed or malfunctioned, and is it available for inspection upon request? - While on highway the vehicle loosed all Power indicating Electrical Malfunction How was your safety or the safety of others put at risk? It happened on I-35 Freeway twice putting me in danger of 18 wheelers around me. I am afraid to be in the vehicle even if they return it to me. Based on records this issue has been present on the car since it rolled off manufacturing. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes and Dealer has reproduced it and has the car with them for 5 Plus months. Have replaced many components and are not able to resolve it. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? South Austin Audi Dealer has been working with Audi Corporate Technical team and have replaced 5 parts to no resolution. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? Electrical Malfunction - Red light flashing to pull the care over to the emergency lane but there is no acceleration -…”
Owner complaint to NHTSAFiled Apr 16, 2026Electrical system, EngineODI 11731663

Service brakes

3 reports
“On five separate occasions across two separate drivers, we have experienced a partial brake failure in this vehicle. We strongly believe this to be a software defect and not a mechanical fault. On the e-Tron, the first portion of the brake pedal swing typically activates the regenerative braking. About mid-way through pressing the pedal, it changes to "real" mechanical brakes. When this brake failure occurs, we get to that midway point and the car lets off the regenerative braking but does NOT apply the mechanical brakes, so the end result is that the more you press the brake pedal, the less it works. Three of these five occasions occurred in one day, so by the time the third time came around, I was really paying attention and I'm very confident this wasn't driver error. In at least one case, the only reason that a crash was avoided is because the automatic braking / forward collision system activated. The vehicle has been inspected by a dealer, who found "No Repairs Recommended". We requested an update to the ABS module software, as this software update is known to resolve multiple other problems with the braking system (see TSBs 2072977, 2061906) but we were denied the update.”
Owner complaint to NHTSAFiled Jan 31, 2025Service brakesODI 11639800

Structure

1 report1 related recall
“The vehicle's charging system keeps failing and turning off the charger. The rear doors do not open from the inside of the vehicle (intermittently).”
Owner complaint to NHTSAFiled Aug 5, 2024Electrical system, StructureODI 11606580

Forward collision avoidance

1 report
“The contact owns a 2021 Audi E-Tron. The contact stated that while driving approximately 5 MPH, the vehicle experienced phantom braking and came to a complete stop. The Forward Collision Avoidance warning light was illuminated. The vehicle stalled and was able to restart after 10-15 attempts. The vehicle was taken to the dealer. The vehicle was not diagnosed nor repaired. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 12,780.”
Owner complaint to NHTSAFiled Aug 30, 2023Forward collision avoidanceODI 11541700
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 11, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.