My recently purchased 2008 TDV8 L322 came with two keys. One key would not lock/unlock the vehicle remotely but would manually and would start the engine with no ‘KEY BATTERY LOW’ message displayed. The other key (refurbished) worked as it should - all functions.

Today, after a 15 minute drive, the refurbished key would not unlock the vehicle remotely. It did manually and started the engine with no ‘KEY BATTERY LOW’ message. After a further 5 minute drive it was fine - all functions.

Anybody know why I’m not getting the ‘KEY BATTERY LOW’ message?

Anybody know if it’s possible to recharge the handset using, for example, an electric toothbrush charger or an Apple Watch charger?

Thanks......

Last edited by kgeddes on 12th Sep 2020 5:28pm. Edited 1 time in total

The battery is charged when the key is in the ignition engine running. (Inductive charging)You appear to have had a low battery in the key which your running has charged sufficiently.

AFAIK only that era RR has that system. John
2008 Stornoway Grey 3.6 Tdv8 Vogue
2005 TD6 Java Black Vogue - Written off!!
GAP iiD BT
2003 Discovery TD5 Auto, Nanocom Evolution - gone to a new home!
MasseyFerguson 152 - No electronics!! - Sold

Thanks Weegie. I don’t understand why I don’t get the ‘KEY BATTERY LOW’ message? Any idea?

I had exactly this a while back, for some reason one of my keys wouldn't unlock the door but would start the engine. Just had to resync all keys and all was well.

Procedure here: https://www.fullfatrr.com/forum/topic47293.html 09 RR Westminster 3.6TDV8 - Stornoway Grey / Black interior - now gone (sad face)
Nissan X Trail 1.6TDCi Tekna
Fiat 500 1.2

Thanks Tugger, I’ll try re-syncing the keys....

Success! Re-synced keys this morning, both working as they should.

Thanks for advice