Air Conditioning is Not Blowing Cold Air – 2020-2021 Chevrolet Corvette

2021 Chevrolet Corvette

NHTSA ID Number: 10222665 Manufacturer Communication Number: 22-NA-041 Summary This service bulletin provides repair information to correct a customer concern of Air Conditioning Not Blowing Cold Air.   Condition Some customers may comment on the air conditioner (A/C) not blowing cold air.   Cause The cause of the condition may be the air conditioning clutch is open. …

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SES MIL / AC Blows Warm Air / Fuse F4DR Open / DTC B1AA3 U3018 U3505 – 2021-2022 Cadillac Chevrolet GMC

2022 Chevrolet Suburban

NHTSA ID Number: 10204460 Manufacturer Communication Number: PIT5869   Summary This Preliminary information communicates an issues with an SES MIL, A/C blowing warm air and DTC’s B1AA3 U3018 U3505 due to Fuse F4DR open.  Dealers are to inspect the wiring in the front floor console.     12 Affected Products Vehicles MAKE MODEL YEAR CADILLAC ESCALADE 2021-2022 CADILLAC …

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A/C Blows Warm Intermittently and/or Takes a Long Time to Start Cooling – 2020-2021 Chevrolet GMC

2021 Chevrolet Blazer

NHTSA ID Number: 10205570 Manufacturer Communication Number: 21NA248   Summary This technical bulletin provides a procedure on the A/C blows warm air intermittently and/or takes a long time to cool.   2 Affected Products Vehicle MAKE MODEL YEAR CHEVROLET EQUINOX 2020-2021   Condition Some customers may comment on the A/C blows warm air intermittently and/or takes a …

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Heat – Defrost – AC – Battery Cooling – and Air Conditioning Performance Concerns – 2022 GMC Hummer EV

2022 GMC Hummer EV

NHTSA ID Number: 10206736 Manufacturer Communication Number: PIT5878   Summary This Preliminary information communicates to the field  engineering contacts to assist in the diagnosis of HVAC concerns on the new 2022 HUMMER EV.     1 Affected Product Vehicle MAKE MODEL YEAR GMC HUMMER EV 2022   Condition Some customers may experience one or more of the …

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Air Conditioning Blows Warm Air and/or Does Not Get Cold – 2018-2020 Cadillac XT4 & Chevrolet Malibu

2020 Cadillac XT4

NHTSA ID Number: 10187419 Manufacturer Communication Number: 20NA224   Summary This service bulletin provides a procedure to inspect the A/C compressor failure due to a combination of low refrigerant and/or PAG oil to correct a condition of Air Conditioning Blows Warm Air and/or Does Not Get Cold.   5 Affected Products Vehicles MAKE MODEL YEAR CADILLAC XT4 …

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