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Service Bulletin #: 04-07-30-037A Date: August 19, 2005 Subject:  Release of DEXRON VI Automatic Transmission Fluid (ATF) Model(s): 2005-2006 This bulletin is being revised to announce the use of DEXRON®-VI with the start of the 2006 model... Read More

#N212330830-01: Service Update Bulletin - Navigation System Displays Incorrect GPS Location - (Jun 21, 2021) Subject:  N212330830 Navigation System Displays Incorrect GPS Location Models:  2021 Cadillac CT4 and CT5 2021 Chevrolet... Read More

#N212332820: Service Update - Unable to Access Apps - (Jun 9, 2021) Subject:  N212332820 — Unable to Access Apps Models:  2021 Cadillac XT4 2021 Chevrolet Corvette 2021 Chevrolet Silverado 1500 2021 GMC Sierra 1500 ... Read More

#PIP5752M: Service Engine Light Misfire Engine Noise With DTC P0300 P0106 P0506 - (Jun 1, 2021) Subject:  Service Engine Light Misfire Engine Noise With DTC P0300 P0106 P0506 Brand: Model: Model Year: VIN: Engine: Transmission: ... Read More

#21-NA-131: Memory Seat Module Does Not Adjust - (Jun 2, 2021) Subject:  Memory Seat Module Does Not Adjust This bulletin replaces PIT5796A. Please discard all previous copies of PIT5796A. Brand: Model: Model Year: VIN: Engine: ... Read More

#21-NA-053: Radio Software Version V155 Update - (Jun 3, 2021) Subject:  Radio Software Version V155 Update This bulletin replaces PIC6425 and will replace PIT5791 for the models listed. Discard all previous versions of PIC6425 and... Read More

#20-NA-221: Unable to Access Apps and Remote Personalization Features in the Radio - (Jun 3, 2021) Subject:  Unable to Access Apps and Remote Personalization Features in the Radio This bulletin replaces PIT5793A. Please discard all... Read More

The 2020 - 2021 Corvette Stingray features two brake options. RPO JL9 is the base brake system and the heavy-duty RPO J55 brake system is standard on all models with the Z51 Performance Package. (Fig. 8) The high performance brakes of the J55 system... Read More

#21-NA-109: Diagnostic Information on Engine Vibration - (May 3, 2021) Subject:  Diagnostic Information on Engine Vibration This bulletin replaces PIP5503B. Please discard PIP5503B. Brand: Model: Model Year: VIN: Engine: ... Read More

Internal Transmission Faults Not Serviceable at the Dealership April 13, 2021 GM TechLink A Service Transmission message or a Service Engine Soon message may be displayed on the Driver Information Center of some 2020-2021 Corvettes equipped with the... Read More