Some good info here
http://www-odi.nhtsa.dot.gov/acms/cs/jaxrs/download/doc/UCM497833/RCLRPT-16V064-9283.PDF
Vehicle : 2014-2016 Mazda CX-5
Vehicle Type : LIGHT VEHICLES
Body Style : SUV
Power Train : GAS
Descriptive Information : 2014 - 2016 model year CX-5, built from June 27, 2013 through January 20, 2016 at
Hiroshima plant of Mazda Motor Corporation, Japan.
Production Dates : JUN 27, 2013 - FEB 02, 2016
Update on 2/6/2016, the total number of subject vehicle and the VIN range of 2016MY vehicles, production period have been revised.
S6.4 of FMVSS No. 301 requires that, when a vehicle is rotated on its longitudinal axis to each successive increment of 90 degrees, following an impact crash test of S6.2 (b), fuel spillage shall not exceed the limit of S5.6. There was no spillage during the impact crash test of S6.2 (b), however when the vehicle was rotated according to S6.4, the amount of fuel spillage exceeded the limit of S5.6.
FMVSS 1 :301 - Fuel system integrity
FMVSS 2 :NR
Description of the Safety Risk :There is a possibility the fuel filler pipe could rupture during an impact crash similar to S6.2 (b) of FMVSS No. 301 and for the fuel to leak from the rupture if the vehicle has a rollover similar to S5.6 of FMVSS No. 301. Leakage of gasoline presents the risk of a fire.
Description of the Cause : When the vehicle was tested according to S6.2 (b) of FMVSS No. 301, a rupture on the filler pipe appeared to be created during the impact. NHTSA performed a compliance test of FMVSS No. 301 on a 2015MY Mazda CX-5 at KARCO Engineering LLC, CA. There was no fuel spillage during the test of S6.2. When the vehicle was rotated according to S6.4, the amount of fuel spillage exceeded the limit of S5.6. Mazda attendees for the test observed this phenomenon on site and reported it to Mazda Motor Corporation in Japan.
January 19, 2016: Mazda Motor Corporation in Japan started the investigation.
January 29, 2016: On the basis of the test result and investigation, Mazda concluded that the test performed by the NHTSA was valid and decided to conduct a noncompliance recall campaign on 2014 2016MY Mazda CX-5 vehicles.
Owners of record will be notified of this issue and instructed to take their vehicles to a Mazda dealer for repair. The repair will be to remove an attachment bolt on a left rear side member attaching the bracket of the fuel filler pipe. This will prevent the rupture on the fuel filler pipe by changing the load path during the rear crash impact. For the remedy in the field and at ports, a tape will be applied to cover the hole for the bolt mount.. For the production on or after February 1, 2016, a rubber pad will be placed between the body member and the bracket and a plastic fastener will be used for attaching the bolt. The repair will be performed free of charge to the vehicle owners.
How Remedy Component Differs from Recalled Component : The attachment between the fuel filler pipe and the left rear side member will be changed, so it can be distinguished easily when it is inspected the area.
Identify How/When Recall Condition was Corrected in Production : Implementation date will be February 1, 2016.