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July 10, 2026 Service bulletin

An installation guide is now available for temporary solar battery maintainers used on vehicles in dealer...

Peterbilt technical service bulletin 31-002 for 2024-2027 Peterbilt 589 and 2025-2027 Kenworth W990.

Bulletin number
31-002
Component
Electrical system
Summary
An installation guide is now available for temporary solar battery maintainers used on vehicles in dealer inventory. Using solar battery maintainers according to the attached guide can reduce instances of dead or undercharged batteries in stock vehicles at dealerships. Use of solar maintainers is considered a best practice for battery maintenance.

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