Instrument reflash to address wow test concern

Bulletin number

M1661

Component

Electrical system

Summary

SERVICE BULLETIN M1661: INSTRUMENT REFLASH TO ADDRESS WOW TEST CONCERN. PURPOSE: This bulletin informs the dealer network, that if the vehicle's speed displayed on the Instrument Module (IM) becomes stuck during the WOW, it will self-correct once the vehicle comes to a stop. Then the speed will display correctly once the vehicle is put back into motion. A reflash is available in Digital Technician II (DT II), software version (24.12.4) or later for the affected Instrument modules that exhibit the concern.

Owners of these vehicles have filed 2 complaints in the electrical category.