Hyundai Tucson NX4E Recall R/2023/039: The Vehicle Immobiliser May Not Function Correctly Due To Incorrect Vehicle Software, Who Is Affected And What To Do

DVSA reference R/2023/039, campaign code 21DC21. Data updated daily from DVSA.

Low
How serious
6 Mar 2023
Launched
4,023
vehicles in the UK
21DC21
Manufacturer’s campaign code

Hyundai recalled Tucson NX4E vehicles built between 15 February 2021 and 19 October 2022. The vehicle immobiliser may not function correctly due to incorrect vehicle software. The dealer will apply a software update to the Hybrid Control Unit to correct the immobiliser operation. You won't usually pay for it.1

What’s Wrong

The vehicle immobiliser may not function correctly due to incorrect vehicle software.

DVSA's Original Wording

Concern: The vehicle immobiliser may not function correctly due to incorrect vehicle software Defect: The vehicle immobiliser may not function correctly due to incorrect vehicle software. Remedy: Apply a software update to the Hybrid Control Unit to correct the immobiliser operation.

Contains public sector information licensed under the Open Government Licence v3.0.

The Risk

The recall notice describes the concern as: the vehicle immobiliser may not function correctly due to incorrect vehicle software.

The Fix

The dealer will apply a software update to the Hybrid Control Unit to correct the immobiliser operation. The fix is a software update, which usually takes under an hour at the dealer.

Are You Affected?

Tucson NX4E built between 15 February 2021 and 19 October 2022 may be included. Hyundai estimates 4,023 vehicles in the UK. Enter your registration to check, then confirm by VIN with Hyundai, because not every car in the date range may be included.

What To Do Now

  1. Check your car by registration above, then by VIN with Hyundai.
  2. Book with any franchised Hyundai dealer, quoting the campaign code 21DC21 or the DVSA reference R/2023/039. See how to get a Hyundai recall fixed.
  3. Follow the letter's instructions until the repair is done. See can you drive a car with a recall?.
LaunchedVehicle and faultSeverityReference
Tucson NX4EThe subject vehicles may experience a loss of brake assistance and brake performance may e reduced. The foot brake will still operate but in a manner of a vehicle without a functioning brake booster (less assistance)UrgentR/2024/489
Tucson NX4EThe side curtain airbag could potentially be assembled in a twisted conditionUrgentR/2024/036
Tucson NX4ECertain Tucson vehicles equipped with rear door power windows may experience a malfunction of the anti-pinch function during its operationBook soonR/2023/184
Tucson NX4E, Tucson NX4E Hev/phevPotential manufacturing defect within the component of the right hand rear caliperUrgentR/2021/414
Ioniq AE EVSome vehicles fitted with a high voltage battery may have internal cell voltage deviationUrgentR/2026/159

This is one of 102 Hyundai recalls in DVSA’s data. The Hyundai recall launched before it was R/2023/038 on 27 Feb 2023, for vehicles may experience a transmission malfunction resulting in a loss of drive. The one launched after it was R/2023/041 on 13 Mar 2023, for the vehicle identification number label may not have the correct maximum permissible laden…. You can also see every Hyundai recall, all recalls launched in 2023 and software recalls across every make.


Source: DVSA recall R/2023/039, launched 6 March 2023. Data updated 15 October 2026. How we grade urgency.

Sources

  1. The Code does not itself say repairs are free. GOV.UK guidance says "You will not usually have to pay for any repairs or parts under a safety recall." gov.uk Checked 15 Oct 2026.