AC Blows Warm or Poor Performance – 2020-2021 GM

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

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

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

Poor Engine Performance in Extremely Cold Weather Conditions, PCV Bypass Hose and Charge Air Cooler Icing for LUV Engines, Malfunction Indicator Lamp (MIL) Illuminated – DTC P0299, P0234, P0236, P2261, P2227, P00C7 Set – 2011-2020 Buick Chevrolet Opel Vauxhall

General Motors

NHTSA ID Number: 10219393 Manufacturer Communication Number: 22-NA-067 Summary This service bulletin provides a repair procedure to correct customer concerns of Poor Engine Performance in Extremely Cold Weather Conditions, PCV Bypass Hose and Charge Air Cooler Icing for LUV Engines, Malfunction Indicator Lamp (MIL) Illuminated.   Condition Some customers may comment that when driving their vehicle, they … Read more

Service Safety Restraint System Message with DTC B1A7A Set – 2022 Buick Envision

2022 Buick Envision

NHTSA ID Number: 10218888 Manufacturer Communication Number: 22-NA-162 Summary This technical bulletin provides repair information to correct a customer concern of Service Safety Restraint System Message with DTC B1A7A Set.   Condition Some customers may comment that during an Autostart event the overhead console may incorrectly cause a “Service Safety Restraint System” message in the Driver Instrument … Read more

Service Power Steering Message with DTC U3000 Set – 2022 Buick Envision

2022 Buick Envision

NHTSA ID Number: 10218889 Manufacturer Communication Number: 22-NA-163 Summary This technical bulletin provides repair information to correct a customer concern of Service Power Steering Message with DTC U3000 Set.   Condition Some customers may comment on a “Service Power Steering” message in the Driver Instrument Cluster. Technician may find DTC U3000 set current or in recent history. … Read more