Sorry, the NHTSA has not posted this TSB document yet.
You can still get the detailed info from Land Rover for this TSB. Call your local Land Rover dealer's service department & ask for a copy of TSB# LTB-00270.
LAND ROVER: SUSPENSION SYSTEM SOFTWARE UPDATE WHEN REPLACING COMPRESSOR. AMBER OR RED SUSPENSION WARNING INDICATOR MAY ILLUMINATE WITH SUSPENSIONS SYSTEM INACTIVE DISPLAYED IN MESSAGE CENTER OR MAY BE A NOTICEABLE DEGRADATION IN SUSPENSION SYSTEM PERFORMANCE. SUSPENSION SYSTEM CONTROL MODULE SOFTWARE UPDATE MAY ONLY BE PERFORMED AFTER A SUSPENSION SYSTEM COMPRESSOR REPLACEMENT. *PE