For the last couple of weeks in May, General Motors began sending letters to owners of C7 Corvettes to notify them of a potential issue with their Corvette’s fuel tanks.
Based on those chiming in on the forums, the notice covers Corvettes built from 2014-2017 and
includes all models - Stingray, Grand Sport and Z06

In the letter GM states :

“This letter is intended to make you aware that some 2016 model year Chevrolet Corvette vehicles may have a condition
where cracks on the top surface of the left fuel tank pump module flange, may cause fuel odor, or a loss of fuel on the ground.

A Check Engine lamp may illuminate if the fuel tank is less than half full.”

For those C7 Corvettes that may be impacted by this fuel tank issue, GM has automatically added a supplemental extended warranty to your Corvette.

The special extended coverage is for 10 years from the date your vehicle was originally placed into service or 120,000 miles, whichever occurs first.
The extended warranty would only cover repairs to the fuel tank and related systems during that time period.


Repair requires disassembling the rear half of the undercarriage and dropping both tanks.

To see if your 2014-2017 Corvette is one of those with the potential issue, you can check your vehicle at my.chevrolet.com or call Chevrolet customer assistance (with VIN in hand) at 800-222-1020 to see if your Corvette has the new supplemental “Special Coverage #17469”

Chevrolet is calling this an extended service warranty.

It covers the left side fuel tank and related parts, including the primary fuel pump, though is primarily for cracks on the top of the tank itself.

Symptoms include:
check engine light, smelling fuel vapor, and/or fuel leaks on the surface below the car.