This bulletin applies to 2018-2019 Chevy Corvette models that exhibit reduced engine power. One possible cause is a pinched wire harness.
This bulletin applies to 2016-2018 Chevy Corvettes equipped with a 6.2L LT1/LT4 engine. The vehicle may have a concern with coolant loss and/or coolant odor. If the coolant is low, pressure test the cooling system to check for leaks at the outer cylinder head bolts.
This bulletin applies to 2015-2016 Chevy Corvette Z06 models equipped with the LT4 engine. Some owners may comment that the MIL is on with a DIC message displayed.
On some 2014-2017 Chevy Corvette models, cracks on the top surface of the left fuel tank fuel pump module flange may cause a fuel odor or a loss of fuel on the ground. A check engine light may illuminate if the fuel tank is less than half full.
This bulletin applies to brake pulsation issues on 2014-2016 Corvettes equipped with the heavy-duty brake system (RPO J55). Customers may comment about a pulsation and/or vibration when applying the brakes.
Owners of 2015 - 2016 Corvette Z06 models may comment about a MIL on with a DIC message. Technicians may find DTC P2227 set in history, and the service procedure diagnostics do not repair the vehicle. An outdated calibration is causing false fails in certain vehicles.
Owners of 2014-2016 Chevy Corvettes equipped with a 6.2L LT1 or LT4 engine and automatic transmission may comment about a rattle noise heard from the bell housing area. If service manual diagnosis does not isolate the noise, the culprit may be the flexplate due to distortion or cracking.
This bulletin applies to 2005-2013 Chevy Corvettes (including Z08). The check engine light may be on, with DTC P0171 and/or P0174 set in history or current. If air flow to the air intake/air cleaner assembly is disturbed, these DTCs may be induced.
2011-2012 Corvette models equipped with the Z06 with Z07 and 2009-2012 Corvette ZR1 models equipped with J57 ceramic brake packages feature ceramic brake rotors that use an electronic sensor to indicate the need for brake pad replacement. The end of service life is communicated to the driver on the DIC (driver information center) with the message “CHANGE BRAKE PADS.”
Some owners of 2016 Chevy Corvettes may comment that the red park brake light on the instrument panel intermittently illuminates. This may be due to the vehicle automatically applying the electronic parking brake (EPB) when the vehicle is not moving.
Sign up for a FREE subscription to Auto Service Professional magazineSubscribe