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Chevrolet low fuel level sensor for the front tank may stick causing the rear tank to overfill the front tank.

NHTSA campaign 17V-664 · Reported October 19, 2017 · 35,292 vehicles affected

AFFECTED MODELS
Chevrolet Silverado and Sierra
VEHICLES AFFECTED
35,292
REMEDY
GM has notified owners, and dealers will replace the rear tank fuel pump or update the fuel-level sensor software, as well as inspect the front tank, replacing it as necessary, free of charge.
COST
Free

The short version

General Motors LLC reported a problem with the storage auxillary tank. Here is what owners need to know.

WHAT

The low fuel level sensor for the front tank may stick causing the rear tank to overfill the front tank.

WHY IT MATTERS

If the front tank overfills, the excess pressure may cause the front tank to expand and contact the driveshaft, possibly resulting in a hole in the tank. The hole will leak fuel, which in the presence of an ignition source, can increase the risk of a fire.

WHAT TO DO

Take it to a dealer — they will replace the rear tank fuel pump or update the fuel-level sensor software, as well as inspect the front tank, replacing it as necessary, free of charge.

Affected vehicles

These model years are included in NHTSA campaign 17V-664.

YEAR RANGEMODEL
2011–2015Chevrolet Silverado
2011–2015GMC Sierra

What changed

Newest first. The record shows both when the recall began and what has changed since.

  1. Recall reported to NHTSA. LATEST

Drive one of these? Check your VIN to see if your specific vehicle is affected.

Check your VIN

What this record means

Data from the NHTSA recall database. A clean VIN check means no open federal recalls for that vehicle — not that it never had one.

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