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Service bulletin LTB01058NAS1

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10125242
Published by NHTSA2017-12-14
Manufacturer's numberLTB01058NAS1
Manufacturer's date2017-07-14
NHTSA componentSUSPENSION

NHTSA's summary

SITUATION: The air suspension may not raise/lower with a warning message displayed on the Instrument Cluster (IC). Upon further investigation, Diagnostic Trouble Code (DTC) C1A13-54 may be stored.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Suspension

Trouble codes named

C1A13

Vehicles listed
LAND ROVER LR42015

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
LTB00401NAS62018-04-23. Service bulletin. The steering wheel may exhibit a vibration / shimmy while driving.
SSM730712017-09-08. Service bulletin. Issue: A number of reports have been received stating the air suspension compressor is noisy. When the returned components are tested they are found to have no faults.
LTB00793NAS12017-06-08. Service bulletin. "SITUATION: THE AIR SUSPENSION SYSTEM MAY NOT RAISE/LOWER WITH A WARNING DISPLAYED ON THE INSTRUMENT CLUSTER AND DIAGNOSTIC TROUBLE C ODES (DTC ) C 1A13-64, C 1A36-01, AND/OR C 1A24-67 MAY BE STORED. CAUSE: THIS MAY BE CAUSED BY THE EXHAUST VALVE WITHIN THE AIR SUSPENSION SYSTEM COMPRESSOR 'STICKING' DUE TO MANUFACTURING ISSUES."
LTB00793NAS22017-06-08. Service bulletin. SITUATION: THE AIR SUSPENSION SYSTEM MAY NOT RAISE/LOWER WITH A WARNING DISPLAYED ON THE INSTRUMENT CLUSTER AND DIAGNOSTIC TROUBLE CODE (DTC) C1A13-64 MAY BE STORED.
SSM721432017-06-06. Service bulletin. "CONCERN: CUSTOMER COMPLAINS OF MULTIPLE WARNING INDICATORS ILLUMINATED UPON START UP OF THEIR VEHICLE. ""AIR SUSPENSION INNACTIVE"" AND OR ""SPECIAL PROGRAMS OFF"" WARNING MESSAGES MAY APPEAR IN THE INSTRUMENT CLUSTER MESSAGE CENTER. SUBSEQUENTLY, THE AIR SUSPENSION / RIDE LEVEL MODULE (RLM IN SDD) FLAGS U0416-68 AND THE ALL TERRAIN CONTROL MODULE (ATCM IN SDD) FLAGS U0415-68."
LTB00735NAS12017-06-06. Service bulletin. "SITUATION: A 'KNOCK' SOUND FROM THE FRONT SUSPENSION MAY BE EVIDENT WHEN TRAVELING ON UNEVEN ROAD SURFACES OR DURING LOW-SPEED HEAVY BRAKING. CAUSE: THIS MAY BE CAUSED BY EXCESSIVE FRONT SUSPENSION LOWER ARM REAR BUSH SNUBBER MOVEMENT."
LTB00793NAS32017-04-12. Service bulletin. SITUATION: THE AIR SUSPENSION SYSTEM MAY NOT RAISE/LOWER WITH A WARNING DISPLAYED ON THE INSTRUMENT CLUSTER AND DIAGNOSTIC TROUBLE CODE (DTC) C1A13-64 MAY BE STORED.
SGI-15-152015-09-26. Service bulletin. LAND ROVER: DUE TO TORQUE SPECIFICATION BEING INCORRECTLY LISTED IN SERVICE INSTRUCTION, THE FRONT SUSPENSION LOWER CONTROL ARM TO KNUCKLE BOLT(S) HAS FAILED, IN CERTAIN VEHICLES. NO MODEL OR YEARS LISTED. *PE