Title: Ford F-Series
Content:   The 12th-generation F-150 was introduced for the 2009 model year as an update of the Ford full-sized truck platform. Similar to its predecessor, these trucks are distinguished by their Super Duty-style grilles and head lamps; standard-cab models again have two doors instead of four. The FlareSide bed was continued until 2010, dropped along with the manual gearbox; outside of Mexico, the Lincoln Mark LT was replaced by the F-150 Platinum. A new model for 2010 included the SVT Raptor, a dedicated off-road pickup. In 2010, Ford shifted its electronics from a general electric module base to the computerized and programmable body control module, allowing for fewer parts differences and programmable upgrade options from the dealer or factory. In 2011, Ford reintroduced the 5.0 
Title: Ford Super Duty
Content:  Following the redesign of the 1997 Ford F-150, the Ford F-Series began a transition in its layout. In response to the changing demographics of pickup truck purchases during the 1980s and 1990s, Ford shifted the design of the F-150 separate from the larger F-250 and F-350 (which remained in production). While still a full-sized pickup under the skin, to expand its appeal among consumers, the F-150 adopted carlike aerodynamics and convenience features. To market a truck that appealed towards commercial buyers, fleet buyers and users who tow, Ford sought to create a separate, dedicated heavy-duty truck platform (in place of using one chassis for all of its trucks). By expanding into two separate but related platforms for F-Series trucks, the inevitable compromises inherent in offering a wide range of load-carrying capacities were avoided. The F-250HD and F-350 lasted into the 1997 model year (alongside a separate 1997/1998 F-250 light duty based upon the F-150).
Title: Ford F-Series (seventh generation)
Content:  For 1984, the F-150 became the smallest version of the model line, following the retirement of the F-100. As a safety change, a clutch interlock prevented engine starts without depressing the clutch pedal. To further combat corrosion, Ford increased the use of galvanized and pre-treated steel body panels. For 1985, the interior underwent a minor revision. While the dashboard design remained the same, the optional woodgrain trim was updated for a more modern appearance; in a similar fashion, the seat trim was updated. The F-350 model line was expanded, as the crew cab became available with dual rear wheels. As an option on higher-trim vehicles, Ford introduced a brushed-aluminum overlay trim panel for the rear tailgate, mounted flush between the taillamps. For 1986, the F-Series saw few substantial changes. To streamline production, all vehicles received a full set of instruments (with only the tachometer remaining optional). Two-tone paint options were revised, as Ford deleted options that painted the roof and/or cab with the accent color. To simplify ordering and production, Preferred Equipment Packages were paired directly with trim levels, reducing the number of distinct options; traditional stand-alone option packages remained in place.
Title: Ford F-Series
Content:   For the 2004 model year, the F-150 was redesigned on an all-new platform, which has a fully boxed-in frame and introduced rear shocks to mount outside of the frame for decreased wheel hop and improved ride quality. This new body style kept the fully independent front suspension introduced in the last generation, but added vacuum-driven front wheel hubs for the four-wheel drive (4WD) versions. The previous generation had full-time connected front axles. The improvement saves fuel and by default goes into a wheel-locked position. Should a failure occur in the vacuum solenoid, system, or hoses, the wheel hub defaults to a 4WD position to keep from leaving a driver stranded. Internally, a three-valve version of the 5.4 L V8 was introduced and replaced the previous two-valve version. Externally, the 11th-generation model was different from its predecessor, with sharper-edged styling; a major change was the adoption of the stepped driver's 
Title: Ford F-Series (thirteenth generation)
Content:  For 2018, the F-150 underwent a mid-cycle model revision, adopting several design features from the Super Duty model line. The trapezoidal grille was replaced by an octagonal grille; the three-bar styling was replaced by a wide two-bar configuration (with a larger Ford Blue Oval emblem). The tailgate saw minor changes, with an embossed "F-150" emblem replacing the previous stamped-metal logo; the taillamps saw a minor revision. Several appearance packages were introduced for the XL, XLT, and Lariat trims. To comply with 2018 Federal Motor Vehicle Safety Standards, all 2018 F-150 models received a standard rear-view backup camera. In comparison to the exterior, the interior of the 2018 F-150 saw fewer visible changes, with most revisions focused on its infotainment systems. Sync was updated to Sync 3; on select models, the system provides remote access, service information, and other vehicle-related information. The premium audio system manufacturer shifted from Sony to Bang & Olufsen, with SiriusXM satellite radio becoming standard for the XLT trim. For 2019, the top-line Limited trim received the powertrain of the Raptor, with a restyled dual exhaust; the Limited also gained a model-specific Camel Back interior color for 2019.
Title: Ford F-Series (twelfth generation)
Content:  five-spoke styled steel wheels that were carryover wheels from the Ford F-Series (eleventh generation). For 2012, the F-150 sported a ten-grade lineup (XL, STX, XLT, FX2, FX4, Lariat, King Ranch, Platinum, Harley-Davidson and SVT Raptor). For 2013, the F-150 received minor changes such as 3 new grilles (replacing all 4 previous grilles), new optional 18-, 20-, or 22-inch wheels, Sync with MyFord, MyFord Touch navigation system, new power-folding and telescoping trailer tow mirrors (taken from the Super Duty models), high-intensity discharge headlamps, 3 new color options (Blue Jeans Metallic, Kodiak Brown Metallic and Ruby Red Clearcoat Metallic), new Alcantara seats in the FX Appearance Package, black or pecan 
Title: Ford F-Series
Content:  Coyote remained the same and both continued to be mated with the 6-speed 6R80 transmission. For the 2018 model year, the Ford F-150 underwent a midcycle redesign, being revealed at the 2017 New York International Auto Show. Following the introduction of the 2017 Super Duty model line, the F-Series (F-150 through F-550 and Ford Raptor) are again manufactured using a common cab (for the first time since 1996). For 2018, the F-150 shifted from the long-running three-bar design used on Ford trucks to the two-bar design that debuted on the 2017 Super Duty model line. The powertrain underwent several revisions, as the 3.5 L V6 was replaced by a 3.3 L V6 mated to a 
Title: Ford F-Series (thirteenth generation)
Content:  While nearly all body panels of the F-150 were converted from steel to aluminum construction (the only significant sheetmetal component constructed of steel is the firewall ), the frame remained of steel construction, and the use of high-strength steel in the frame was increased from 23% to 77%. The aluminum body panels resulted in a nearly 750lb reduction in curb weight. To showcase the durability of the aluminum-intensive design, Ford entered prototypes of the model disguised as 12th generation F150s in the Baja 1000.
Title: Ford F-Series (eleventh generation)
Content:  The eleventh generation of the Ford F-Series is a line of light-duty trucks manufactured by Ford from the 2004 to 2008 model years. Slotted between the Ford Ranger and the Ford (F-Series) Super Duty trucks, the model line includes the Ford F-150 pickup truck. In a first (for several decades), both the body and chassis had undergone a redesign. Introducing a sharper-edged version of the aerodynamic styling from the tenth generation, this generation adopted several design elements from the larger Super Duty trucks, including the stepped front door windows (a design feature which remains in use), triple-bar grille (also shared with the Ranger), and optional extended-width mirrors. This is the final version of the F-Series designed with the FlareSide bed style. This generation of the F-150 was marketed by Lincoln-Mercury as the Lincoln Mark LT from 2005 to 2008 (replacing the Blackwood); again serving as the basis for Ford full-size SUVs, the F-150 shares a degree of mechanical commonality with the Ford Expedition and the Lincoln Navigator. Through its production, the eleventh-generation F-Series was assembled by Ford at multiple facilities in the United States, Canada, and Mexico.
Title: Ford F-Series (twelfth generation)
Content:  The twelfth generation of the Ford F-Series is a light-duty pickup truck that was produced by Ford from the 2009 to 2014 model years. Initially slotted between the Ford Ranger and Ford Super Duty in size, the F-150 became the smallest Ford truck in North America following the 2011 withdrawal of the Ranger (in North America). The final generation of the F-150 produced with a separate body design from the Super Duty trucks (F-250 to F-550), the twelfth generation again adopted an all-new chassis and body, also marking an extensive transition to the powertrain lineup. Alongside the all-new model design, the new generation started a model shift for the F-150. In 

Question: when did ford change the f150 body style?
Answer: the 2009 model year.
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