Malfunction Indicator Lamp (MIL) Illuminated – DTC P219A and/or P219B Set – 2016-2022 Buick Cadillac Chevrolet GMC Holden

General Motors

NHTSA ID Number: 10222837 Manufacturer Communication Number: 22-NA-193 Summary This informational bulletin explains to the tech on where to look for a possible concern with the rockers causing the MIL to illuminate.   Condition Some customers may comment that the MIL is illuminated. Some technicians may find one or more of the following codes set in the … Read more

2015-2022 Cadillac Chevrolet GMC

Chevrolet GMC Cadillac

NHTSA ID Number: 10222670 Manufacturer Communication Number: 22-NA-184 Summary This informational bulletin advises the technician of possibly installing the incorrect 1-2-7-8-R clutch fluid passage seal and which seal should be used with measurements of the seal.   Condition Technician’s may find a no movement condition after replacement of the valve body on the 8L45 or 8L90 automatic … Read more

2-3 Upshift Slip or Flare – 2006-2023 Cadillac Chevrolet GMC Hummer

General Motors

NHTSA ID Number: 10222832 Manufacturer Communication Number: 22-NA-185 Summary This informational bulletin explains how the trans slip or flare can be a normal condition.   Condition Some customers may comment on a 2-3 upshift slip or flare.   Cause This condition is a NORMAL characteristic of the transmission, it will not cause durability concerns and no repair … Read more

8L45 8L90 No Movement After Valve Body Replacement – 2015-2023 Cadillac Chevrolet GMC

Chevrolet GMC Cadillac

NHTSA ID Number: 10220314 Manufacturer Communication Number: 22-NA-176 Summary This technical bulletin provides information on a possible bolt and guide pin that may be missing from the control valve which will need to be installed to correct the repair.   Condition Some technicians may comment on no movement after the valve body replacement.   Cause This may … Read more

Stop/Start System Malfunction, DTC P1064, P1065, P1068, P106F, P1070, P108D, P108E, or P1091 Set – 2016 Cadillac ATS, CTS

2016 Cadillac ATS

NHTSA ID Number: 10201133 Manufacturer Communication Number: PI1518A Summary Stop/Start System Malfunction, DTS P1064, P1065, P1068, P1070, P108D, P108R, or P1091 Set – Equipped with Stop/Start System (RPO KL9)   Condition/Concern Some customers may comment that the message “Stop/Start System Disabled” appears on the DIC. There may be a poor ground terminal connection at G400.   Recommendation/Instructions … Read more