Transmission

Service Update 17419 Transmission Rough Upshifts – 2018 Chevrolet Silverado & GMC Sierra

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2018 Chevrolet Silverado

NHTSA ID Number: 10135135 Manufacturer Communication Number: 17419 (Bulletin Summary 17419-Service Update. Certain vehicles, equipped with 6.6L diesel engine (RPO L5P) and Allison transmission (RPO MW7), may have a condition in which the automatic transmission has rough upshifts. Dealers will reprogram the transmission control module (TCM).   2 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET SILVERADO 2500 … Read more

Information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares – 2015-2021 GM Passenger Cars and Trucks

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2017 Chevrolet SS

NHTSA ID Number: 10187372 Manufacturer Communication Number: 16NA019   Summary This informational bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares.   260 Affected Products Vehicles MAKE MODEL YEAR CADILLAC ATS 2015-2019 CADILLAC CT4 2020-2021 CADILLAC CT5 2020-2021 CADILLAC CT6 2016-2020 CADILLAC CTS 2015-2019 CADILLAC ELR 2015-2017 CADILLAC ESCALADE 2015-2021 … Read more

43940 – Brake Transmission Shift Interlock (BTSI) – Transmission Won’t Shift Out of Park – 2016 Chevrolet Malibu & 2016-2017 Chevrolet Volt

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2017 Chevrolet Volt

NHTSA ID Number: 10089390 Manufacturer Communication Number: 43940 Summary 43940 – SERVICE UPDATE. CERTAIN 2016 MODEL YEAR CHEVROLET MALIBU AND 2016-2017 CHEVROLET VOLT VEHICLES MAY HAVE A CONDITION WHERE A BURR MAY BE PRESENT ON THE SPRING END WHICH IS PART OF THE SHIFTER ASSEMBLY. THIS MAY RESULT IN AN INTERMITTENT CONDITION WHERE THE VEHICLE WILL NOT … Read more

Reduced Acceleration at Low Speed and/or Transmission Slipping from a Launch, DTC P0751 – 2010-2019 Cadillac Chevrolet GMC

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2019 Chevrolet Suburban

NHTSA ID Number: 10163902 Manufacturer Communication Number: PI1344C Summary This preliminary informational bulletin adds the 2016 model year to diagnostic tips and repair information to correct a customer concern of reduced acceleration at low speed and/or transmission slipping from a launch, DTC P0751 set.   151 Affected Products Vehicles MAKE MODEL YEAR CADILLAC ATS 2013-2015 CADILLAC CTS … Read more

Drive Quality Degradation and/or Transmission Harsh Shifts – 2014-2015 Chevrolet Spark

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2015 Chevrolet Spark

NHTSA ID Number: 10079725 Manufacturer Communication Number: GCUS-3-401 Summary 20710 – CUSTOMER SATISFACTION PROGRAM. VEHICLES EQUIPPED WITH A CONTINUOUSLY VARIABLE RATIO AUTOMATIC TRANSMISSION (CVT) (RPO M4M), MAY HAVE A CONDITION IN WHICH THE DRIVE PULLEY AND BELT COULD BE DAMAGED IF THEY EXPERIENCE AN UNEXPECTED HARSH SHIFT EVENT. DEALERS ARE TO REPROGRAM THE TRANSMISSION CONTROL MODULE (TCM) … Read more