Sorry, the NHTSA has not posted this TSB document yet.
You can still get the detailed info from Chevrolet for this TSB. Call your local Chevrolet dealer's service department & ask for a copy of TSB# 17-NA-335.
Affected Component: FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS
Malfunction Indicator Lamp Illuminated (MIL) - DTC P2635 and/or P018B Set In High Ambient Temperatures With Hesitation, Surging and Stalling
Condition
Some customers may comment that the Malfunction Indicator Light (MIL) is illuminated.
Some customers may also comment on one or more of the following symptoms:
• Hesitation
• Surging
• Stalling
Note: In ambient temperatures 100 F (37.7 C) degrees or higher, DTCs P2635 and/or P018B may set.
The Technician may find one or more of the following DTCs set:
• P2635
• P018B
Cause
This condition may be caused by a vapor buildup in fuel feed line.
Correction
If the conditions stated above are met, replace the fuel pump module with an updated version
