Poor Heater Performance On Drivers Side – 2019-2021 Cadillac Chevrolet GMC

2021 Chevrolet Suburban

NHTSA ID Number: 10204458 Manufacturer Communication Number: PIT5868   Summary This Preliminary information communicates an issues will low or poor heater performance on the drivers side.  Dealers are to inspect the HVAC temperature door linkage and if ok replace the heater core.     13 Affected Products Vehicles MAKE MODEL YEAR CADILLAC ESCALADE 2021 CADILLAC ESCALADE ESV … Read more

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 … Read more

Multiple Radio Inoperable Issues – IOK Radio – 2022 Chevrolet GMC

2022 Chevrolet Tahoe

NHTSA ID Number: 10204467 Manufacturer Communication Number: PIT5866A   Summary This Preliminary information communicates to GM dealers of a concern with missing icon on the display and work around information until Engineering verifies a permanent repairs     4 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET SUBURBAN 2022 CHEVROLET TAHOE 2022 GMC YUKON 2022 GMC YUKON XL … Read more

Short Range Radar (SRR) with DTC U3000 49 Set – 2021 Cadillac Chevrolet GMC

2021 Chevrolet Suburban

NHTSA ID Number: 10205566 Manufacturer Communication Number: 21NA243   Summary This technical bulletin provides repair information to correct a customer concern of Short Range Radar (SRR) with DTC U3000 49 Set.     6 Affected Products Vehicles MAKE MODEL YEAR CADILLAC ESCALADE 2021 CADILLAC ESCALADE ESV 2021 CHEVROLET SUBURBAN 2021 CHEVROLET TAHOE 2021 GMC YUKON 2021 GMC … Read more

No Fob Detected Message on Driver Information Center (DIC) with No Crank/No Start – 2020-2021 Buick Cadillac Chevrolet GMC

2021 Chevrolet Corvette

NHTSA ID Number: 10205567 Manufacturer Communication Number: 21NA244   Summary This service bulletin provides a repair procedure to correct a customer concern of a No Fob detected message on Driver Information Center (DIC) and/or No Crank / No Start condition.     12 Affected Products Vehicles MAKE MODEL YEAR BUICK ENVISION 2021 CADILLAC CT4 2020-2021 CADILLAC CT5 … Read more