Information on Possible Normal Engine Noise – 2020-2021 Buick Encore GX & Chevrolet Trailblazer

2021 Buick Encore GX

NHTSA ID Number: 10187392 Manufacturer Communication Number: 20NA084   Summary This service bulletin provides information on normal engine characteristics/noise produced by the LIH engine.   3 Affected Products Vehicles MAKE MODEL YEAR BUICK ENCORE GX 2020-2021 CHEVROLET TRAILBLAZER 2021     SEOCONTENT-START Service Bulletin Bulletin No.: 20-NA-084 Date: December, 2020 INFORMATION Subject: Information on Possible Normal Engine … Read more

Slight Shudder Felt During Gear Shift at Slow Speeds Below 64 km/h (40 mp/h) with Light Throttle Application – 2018 Buick Enclave & Chevrolet Traverse

2018 Buick Enclave

NHTSA ID Number: 10198840 Manufacturer Communication Number: 18NA091   Summary This technical bulletin provides a procedure for software update and transmission flush to correct a slight shutter felt during gear shift.     2 Affected Products Vehicles MAKE MODEL YEAR BUICK ENCLAVE 2018 CHEVROLET TRAVERSE 2018   Condition Some customers may comment on a slight shudder felt … Read more

Long Range Radar setting DTC U3000 49 – 2021 Buick Cadillac Chevrolet GMC

2021 Chevrolet Tahoe

NHTSA ID Number: 10187764 Manufacturer Communication Number: 20NA233   Summary This technical bulletin provides repair information to correct a customer concern of Long Range Radar setting DTC U3000 49.   7 Affected Products Vehicles MAKE MODEL YEAR BUICK ENVISION 2021 CADILLAC ESCALADE 2021 CADILLAC ESCALADE ESV 2021 CHEVROLET SUBURBAN 2021 CHEVROLET TAHOE 2021 GMC YUKON 2021 GMC … Read more

Information on Transmission Flares, Slipping, Gear Hunting, Harsh Shifting, Only Shifts at Wide Open Throttle (WOT) or Hard Acceleration, Rolling in Reverse or in Wrong Direction Selected, High Engine RPM, Shift Busyness, Surging While Cruising, Will Not Upshift, Holds in a Lower Gear, Will Not Back Up Hills, Not Shifting, Jerks and/ or Loss of Power – 2019-2021 Buick Chevrolet

2021 Chevrolet Trailblazer

NHTSA ID Number: 10187768 Manufacturer Communication Number: 21NA004   Summary This service bulletin provides information explaining possible normal CVT automatic transmission performance.   6 Affected Products Vehicles MAKE MODEL YEAR BUICK ENCORE GX 2020-2021 CHEVROLET MALIBU 2019-2021 CHEVROLET TRAILBLAZER 2021     SEOCONTENT-START   Service Bulletin Bulletin No.: 21-NA-004 Date: January, 2021 INFORMATION Subject: Information on Transmission … Read more

Warranty Administration – Pre-Repair Authorization (PRA) Process and Information – GM Passenger Cars and Light Duty Trucks

2021 Chevrolet Corvette

NHTSA ID Number: 10219284 Manufacturer Communication Number: 18-NA-306 Summary This Warranty Administration service bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA).   746 Affected Products Vehicles MAKE MODEL YEAR BUICK CASCADA 2016-2019 BUICK ENCLAVE 2011-2023 BUICK ENCORE 2013-2022 BUICK ENCORE GX 2020-2022 BUICK ENVISION 2016-2022 BUICK LACROSSE 2011-2020 BUICK … Read more