WenmarOpen by Wenmar Pro

Service bulletin 818012

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 id615916
Published by NHTSA2001-02-02
Manufacturer's number818012
Manufacturer's date2000-10-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE

NHTSA's summary

SOME MODEL TRUCKS USED IN EXTREMELY HOT CLIMATES WITH HIGH HORSE POWER ENGINES MAY EXPERIENCE PREMATURE FAILURE OF THE CAB AIR SPRING DUE TO HEAT FROM THE EXHAUST SYSTEM. *TT

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine

Vehicles listed
VOLVO VNL
VOLVO VNM

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