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January 21, 2026 Service bulletin

TCU Module software patch was created to prevent and resolve the following failure modes: • Prognostics...

Pierce technical service bulletin SB_498.6 for 2002-2025 Pierce Arrow XT, 2002-2020 Pierce Dash and 2002-2025 Pierce Impel and others.

Bulletin number
SB_498.6
Component
Unknown or other
Summary
TCU Module software patch was created to prevent and resolve the following failure modes: • Prognostics Not Resetting or not Staying Reset after a battery cycle. • Cannot Access PierceCZ.com (HTTP ERROR 500) The procedure below outlines what part/s are needed to resolve the issue.

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