- Engine / equipment
- Hands-free card and cabin unit (UCH)
- Period mentioned
- Approx. 2003–2009
- Symptoms
- The cards stop opening or starting the car, hands-free and with the buttons, and “Card not detected” appears; sometimes it clears by itself after a few minutes.
- Possible cause described
- Owner reports: the cabin unit (UCH) stops recognising the cards’ code; described as common on the Scénic II and Mégane II.
- Check for the garage
- Try the other card and its battery; at the dealer or with a diagnostic tool, check the UCH and relearn both cards.
- Cost cited in the source
- No verified estimate; relearning the cards is usually a short garage job.A rough figure from the original database, not an up-to-date quote.
KNOWN FAULT · Renault
“Card not detected”: the car does not recognise the key card
Sources are not verified in real time and no entry confirms that your car is affected.
Has this happened to you?
Anonymous answer, no personal data.
Frequently asked questions
How much does it cost to repair this fault?
No verified estimate; relearning the cards is usually a short garage job.
A rough figure from the original database, not an up-to-date quote.
Calculate estimateHow is it checked?
Try the other card and its battery; at the dealer or with a diagnostic tool, check the UCH and relearn both cards.
What are the symptoms?
The cards stop opening or starting the car, hands-free and with the buttons, and “Card not detected” appears; sometimes it clears by itself after a few minutes.
Which cars and years does it affect?
- Brands
- Renault
- Engine / equipment
- Hands-free card and cabin unit (UCH)
- Period mentioned
- Approx. 2003–2009
Taking it to a garage?
Models with this entry
- Renault Mégane (II)2002–2009
- Renault Scénic (II) / Grand Scénic (II)2003–2009
- Renault Laguna (II)2001–2007
Other entries for these makes
- 12 V battery, charging and park actuator on the Mégane E-Tech ElectricRenault
- Warning lights for no reason, sensors and infotainment on the ArkanaRenault
- Software faults: camera, dashboard and steering on the AustralRenault
- A 12 V battery that drains and leaves the Symbioz unable to unlock or startRenault
- Wireless phone charger that heats up and does not charge (Rafale)Renault
- Electronics and automatic-gearbox campaign on the Clio VRenault
Something not right on this page?