Discovery 2017

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  • Chrisholly31
    Member Since: 31 Dec 2025
    Location: Somerset
    Posts: 2
    United Kingdom 
    2020 Discovery Td6 HSE Corris Grey

    Number plate lights not extinguishing

    Good Evening,
    First post so please be gentle!
    Have recently swapped a D4 for a D5 (2020 SD6 HSE) and have been very pleased so far. It was obviously only a matter of time before the first niggle and I would be very grateful if anyone can advise on the following issue. I’ve searched the forum to no avail.
    Essentially, as title suggests the number plate lights are not extinguishing when the car is turned off, locked and alarmed. They do dim, but remain on. I’m clearly concerned about battery drain.
    A Google search recommended a hard reset by disconnecting and reconnecting the battery after 15mins. But I just wanted some grown up advice before attempting this.
    Any help greatly appreciated.
    23rd Jan 2026 10:27 pm
  • Chillyphil
    Member Since: 07 Jul 2025
    Location: Paignton
    Posts: 63
    United Kingdom 
    2018 Discovery Td6 HSE Lux Silicon Silver

    Hi Chris,

    Welcome to the forum.
    A lot of good guys here who I'm sure will give you good advice.

    Phil
    24th Jan 2026 7:57 pm
  • Chrisholly31
    Member Since: 31 Dec 2025
    Location: Somerset
    Posts: 2
    United Kingdom 
    2020 Discovery Td6 HSE Corris Grey

    Thanks for the welcome Phil. Hope you haven’t been too badly impacted by this weather.

    Attempted hard-reset today to no avail. Will go down the warranty route next week and update when issue is known. Dealer has been helpful and thinks it’s either a corroded wire or faulty boot switch.
    24th Jan 2026 8:22 pm
  • Mole HD
    Member Since: 18 Nov 2024
    Location: Orkney Islands
    Posts: 686
    Scotland 
    2017 Discovery Td6 HSE Fuji White

    Definitely sounds like a bad earth or something. Just as an experiment, if you have the light switch on the stalk set to auto, try turning it to off and check if the number plate lights are still on when you lock the car...
    24th Jan 2026 10:21 pm
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