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Service bulletins for the 1999 UD UD1400

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.

11 on file from NHTSA, as of 2026-10-19.

By type

By component

Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
140742001-07-24. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). THIS BULLETIN STATES THAT CERTAIN VEHICLES' POWERTRAIN CONTROL MODULE (PCM) REQUIRE A FINAL DRIVE RATIO (NOT AXLE RATIO) AND TIRE REVOLUTION PER MILE INFORMATION DURING A PCM REPLACEMENT OR PCM RE-PROGRAM. *TT
TR121999-09-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. INFORMATION REGARDING THE AVAILABILITY OF THE AISIN AUTOMATIC TRANSMISSION OIL PAN SEALANT FOR 1999 AND AFTER MODEL YEAR VEHICLES. *TT
990571999-07-29. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. INFORMATION REGARDING AISIN AUTOMATIC TRANSMISSION CHECKSHEET. *TT

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.