2020

AC Blows Warm or Poor Performance – 2020-2021 GM

by
General Motors

NHTSA ID Number: 10216361 Manufacturer Communication Number: PIT5099F Summary This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.   Condition / Concern Customer may comment that … Read more

17 Wheels and QHQ Tires with Poor Ride Quality – 2020-2023 Chevrolet Silverado & GMC Sierra 2500HD/3500HD

by
2023 Chevrolet Silverado

NHTSA ID Number: 10222669 Manufacturer Communication Number: 22-NA-183 Summary This informational bulletin advises the tech of a different tire/rim option that can be used to correct the customers concern.   Condition Some customers may comment on poor ride quality at highway speeds.   Cause This condition may be caused by tire inflation pressure that is high to … Read more

2015-2022 Cadillac Chevrolet GMC

by
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

GM TAC Support On Vehicle Automatic Transmission Concerns That Can Be Duplicated

by
General Motors

NHTSA ID Number: 10224285 Manufacturer Communication Number: PIP5621C Summary This Preliminary information communicates to the dealer  technician that TAC recommends the utilization of the GDS2 software to aid in diagnosing automatic transmission concerns. TAC is requesting the GDS2 session logs be sent in before the dealer contacts TAC.   Condition Some customers may comment on the operation … Read more

Service Engine Soon (SES) Lamp Illuminated, DTC P1467 and/or P1469 Set – 2019-2020 Chevrolet Silverado 1500

by
2020 Chevrolet Silverado 1500

NHTSA ID Number: 10224286 Manufacturer Communication Number: PIT5723A Summary This Preliminary information communicates information that the EVAP purge pump may be filling with liquid fuel if the customer overfills the fuel tank by over 3 clicks of a normal filler nozzle. Reference N202324990: Special Coverage – Evaporative Emissions Purge Pump for repair information   Condition Some customers … Read more