This Preliminary information communicates to the dealer technician that if they are unable to perform the...
GMC technical service bulletin PIP5678 for 2015-2016 GMC Sierra 1500, 2017 Chevrolet Silverado and 2015-2016 Chevrolet Silverado 2500 and others.
- Bulletin number
- PIP5678
- Component
- Power train
- Summary
- This Preliminary information communicates to the dealer technician that if they are unable to perform the solenoid characterization using the transmission unit number (TUN) off a replacement 8L90 RPO M5U automatic transmission to refer to the TUNs listed in this PI. If the TUN off the replacement transmission is listed they should refer to bulletin 18-NA-355 and perform a transmission fluid exchange due to possible fluid contamination. The dealer technician is to call technical assistance after the fluid exchange to get the TUN unlocked so they will then be able to complete solenoid valve characterization procedure.
Owners of these vehicles have filed 307 complaints in the transmission category.
Vehicles covered
- GMC Sierra 1500 2015-2016 20152016
- Chevrolet Silverado 2017 2017
- Chevrolet Silverado 2500 2015-2016 20152016
- GMC Sierra 2017 2017
- GMC Yukon Denali 2015-2017 201520162017
- Cadillac Escalade ESV 2015-2017 201520162017
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