
Because the full name of the 12th-generation Crown is Crown GRS184. Below are the relevant details about the Toyota Crown GRS184: Powertrain: The GRS184 is equipped with Toyota's 2GR-FSE engine, delivering a maximum power of 309 horsepower and a maximum torque of 377 Nm. The domestically produced Crown engines come in three variants: 2.5L, 3.0L, and 4.3L. The first two feature a V6 cylinder 24-valve design, while the 4.3L engine is a V-type eight-cylinder. All are configured with the Dual VVT-i (Variable Valve Timing-intelligent) system for bidirectional intelligent timing variation of intake and exhaust valves. Interior: The classic black interior is equipped with a Mark Levinson audio system. The central console features air vents with sweeping airflow functionality.

The name Crown 184 is actually closely related to its chassis code. Having repaired vehicles for twenty years, I've seen countless old Crowns. This generation uses the GRS18 series chassis, where the first two digits combined with the drive type code form the 184. The rear-wheel-drive version, GRS180, was the early model. After the minor facelift in 2005, the drive number changed from 0 to 4, eventually becoming the familiar GRS184. This number appears everywhere in repair manuals and parts systems, even the tenth letter in the VIN changes accordingly. Most later models on the road carry the 184 code. Back in the day, master technicians at 4S dealerships loved calling it that during training, and now in car enthusiast circles, mentioning 184 immediately identifies it as the later model Crown.

Veteran car enthusiasts are well aware that '184' is the abbreviated chassis code for the 12th-generation Crown. To be more specific, GRS180 refers to the early version, but when facelifted the model in 2005, they upgraded the drivetrain system, and the code changed to GRS184. You can find this alphanumeric sequence printed on the trunk or chassis nameplate. This code encapsulates both the drivetrain configuration and chassis structure—mechanics rely on it when sourcing parts. Even in the used car market today, '184' is used to distinguish the 2005-2008 models. Details like headlight design and transmission programming align with this code. A true expert on this car can spot an authentic 184 version just by glancing at the taillights.

184 is the general term for the mid-cycle facelift of the 12th-generation Crown. Toyota's factory assigned codes to vehicles with different drive forms: the four-wheel-drive version is called GRS182, the early rear-wheel-drive version is GRS180, and the upgraded rear-wheel-drive version after 2005 is directly named GRS184. You can verify this by checking the chassis or the vehicle's green book. Many newcomers mistakenly think 184 is a model name, but it's actually an abbreviation of the chassis code. In the enthusiast community, calling it this way is particularly convenient—when someone mentions 184, everyone knows it refers to the later version with silver trim on the steering wheel, distinguishing it from the earlier version with a wood-grain steering wheel.

Back when I was lurking on the Crown forum, I noticed that car enthusiasts often used '184' to refer to the later models. The key identifiers are the dashboard and headlights: the 185 version is the sporty GRS185, while 184 represents the factory code for the regular rear-wheel-drive later models. This code is stamped on the vehicle's body plate, essentially serving as the car's ID number. Nowadays, when hunting for used parts, you have to specify '184 version' for items like door handles, or you might end up with parts from earlier models that won't fit. Even the dashboard backlight color is unique to the 184 – it's white, whereas the earlier models had green backlighting.

184 is not a model name but a chassis code, specifically referring to the rear-wheel-drive version after the 2005 facelift. Check the vehicle conformity certificate and you'll definitely find the string 'GRS184'. The third digit '4' in the code represents the upgraded rear-wheel-drive system, distinguishing it from the earlier version marked with '0'. When a used Crown, opting for the 184 is more cost-effective as it addressed common issues and offers better durability. Experienced used car dealers always check the chassis stamp number first—the genuine 184 version even features optimized brake boosters, resulting in noticeably lighter steering feel.


