Infiniti Q50, Q70 Recall R/2014/120: Vehicle May Cut Out, Who Is Affected And What To Do
- Urgent
- How serious
- 15 Dec 2014
- Launched
- 100
- vehicles in the UK
- R/2014/120
- DVSA reference
Infiniti recalled Q50, Q70 vehicles built between 10 December 2012 and 3 July 2014. Due to a software error the traction motor inverter may incorrectly diagnose communication between the inverter and the transmission control module (TCM). The dealer will install new software for the traction motor inverter control module. You won't usually pay for it.1
What’s Wrong
Due to a software error the traction motor inverter may incorrectly diagnose communication between the inverter and the transmission control module (TCM). This can cause the inverter system to suddenly shut down. If the vehicle is being driven in Electric Vehicle (EV i.e. engine off) the power to the electric motor may be cut resulting in the vehicle coming to a sudden stop.
DVSA's Original Wording
Concern: VEHICLE MAY CUT OUT Defect: It has been identified that due to a software error the traction motor inverter may incorrectly diagnose communication between the inverter and the transmission control module (TCM). This can cause the inverter system to suddenly shut down. If the vehicle is being driven in Electric Vehicle (EV i.e. engine off) the power to the electric motor may be cut resulting in the vehicle coming to a sudden stop. Remedy: Recall all affected vehicles to install new software for the traction motor inverter control module.
Contains public sector information licensed under the Open Government Licence v3.0.
The Risk
If the fault occurs, the recall notice says it could cause the inverter system to suddenly shut down.
The Fix
The dealer will install new software for the traction motor inverter control module. The fix is a software update, which usually takes under an hour at the dealer.
Are You Affected?
Q50, Q70 built between 10 December 2012 and 3 July 2014 may be included. Infiniti estimates 100 vehicles in the UK. Enter your registration to check, then confirm by VIN with Infiniti, because not every car in the date range may be included.
Which Car Is It?
Choose the make and model so we can match recalls to your car.
What To Do Now
- Check your car by registration above, then by VIN with Infiniti.
- Book with any franchised Infiniti dealer, quoting the DVSA reference R/2014/120. See how to get a Infiniti recall fixed.
- Follow the letter's instructions until the repair is done. See can you drive a car with a recall?.
Related Recalls
| Launched | Vehicle and fault | Severity | Reference |
|---|---|---|---|
| Q50, Q70(V37) M30/Q70 (Y51) propeller shaft | Low | R/2024/261 | |
| Q50, Q60Automatic transmission malfunction may affect vehicle emissions | Low | R/2017/305 | |
| Q70Engine may stall | Urgent | R/2016/170 | |
| Q50Steering / directional control may be affected | Urgent | R/2016/123 | |
| Q50, Q70Oil may leak engine may stall | Urgent | R/2015/027 |
This is one of 15 Infiniti recalls in DVSA’s data. The one launched after it was R/2014/121 on 15 Dec 2014, for under extreme circumstances transmission may detach. You can also see every Infiniti recall, all recalls launched in 2014 and loss of power recalls across every make.
Source: DVSA recall R/2014/120, launched 15 December 2014. Data updated 15 October 2026. How we grade urgency.
Sources
- 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.