GM OEM 3-Button Remote Key Fob (FCC ID LHJ011) – Specs & Fitment

Sourcing decisions for the GM OEM 3-Button Remote Key Fob (FCC ID LHJ011) split between OEM and aftermarket paths, and the distinction matters more than many vehicle owners realize. An OEM unit from General Motors carries factory-grade circuitry tuned to 315 MHz, ensuring consistent signal strength and durable button-pad response over years of daily use. Aftermarket variants of this fob may replicate the same FCC-registered frequency and button layout, but shell quality and internal component tolerances can vary significantly between manufacturers. The GM OEM 3-Button Remote Key Fob (FCC ID LHJ011) requires on-board programming via a specific ignition-cycle procedure regardless of sourcing origin. For technicians, every variant of the device should be tested for proper 315 MHz transmission before handing it back to the customer. When replacing the GM OEM 3-Button Remote Key Fob (FCC ID LHJ011), confirm the FCC ID printed on the back of the unit matches LHJ011 to guarantee electrical and protocol compatibility with the vehicle’s receiver module.

Vehicle Fitment for the GM OEM 3-Button Remote Key Fob (FCC ID LHJ011)

This remote covers a broad cross-section of General Motors full-size trucks, SUVs, and select crossover models produced from the late 1990s through the late 2000s. The validated fitment list includes:

• Cadillac Escalade — 2002 to 2006
• Chevrolet Avalanche — 2002 to 2006
• Chevrolet Silverado — 1999 to 2007
• Chevrolet Suburban — 2000 to 2006
• Chevrolet Tahoe — 2000 to 2006
• GMC Sierra — 1999 to 2006
• GMC Yukon — 2000 to 2006
• Hummer H2 — 2003 to 2009
• Pontiac Torrent — 2005 to 2009
• Saturn Vue — 2002 to 2007

The shared GM platform architecture across these model years means the fob’s 315 MHz receiver module is largely identical whether the vehicle wears a Chevrolet, GMC, Cadillac, or Hummer badge. This simplifies inventory management for locksmiths servicing a mixed fleet of GM trucks and SUVs — one SKU covers a decade-long production run across ten distinct nameplates.

Physical Layout and Button Functions

The remote features a three-button layout. The buttons typically correspond to lock, unlock, and a third function such as panic or hatch release, depending on the specific vehicle platform. The housing uses the standard GM two-piece snap-together shell design with a rubberized button pad bonded to the upper half. A CR2032 coin-cell battery powers the unit, accessible by separating the shell halves with a flat-blade screwdriver or trim tool inserted into the side seam.

On OEM units, the button pads tend to retain tactile feel longer than aftermarket equivalents. The carbon-contact pads beneath each button are a known wear item; if the fob intermittently fails to transmit, cleaning or replacing these contact points is often the fix before condemning the entire board.

315 MHz Operating Frequency

The GM OEM 3-Button Remote Key Fob (FCC ID LHJ011) transmits at 315 MHz, the dominant frequency for North American GM keyless entry systems of this era. This frequency is regulated under FCC Part 15 rules, meaning the device operates at low power with no interference protections guaranteed. In practical terms, range can be affected by nearby radio-frequency sources — cell towers, LED signage drivers, and aftermarket amplifiers mounted in the vehicle itself have all been documented as interference culprits that reduce effective operating distance.

A healthy unit should lock and unlock the vehicle from roughly 30 to 50 feet in an open environment. If range has dropped significantly, the first diagnostic step is a fresh battery. If range remains poor after battery replacement, the internal antenna trace on the circuit board may have a hairline fracture — common in fobs that have been dropped on hard surfaces repeatedly.

Programming and Pairing Procedures

Most vehicles in the fitment list support a self-learn programming procedure that does not require diagnostic scan-tool access. The general on-board process involves cycling the ignition between RUN and OFF positions within a timed window until the door locks cycle, indicating the vehicle has entered programming mode. Once in learn mode, pressing and holding the lock and unlock buttons simultaneously on the fob should trigger a second lock-cycle confirmation, registering the new remote to the receiver.

Two important caveats apply. First, initiating the programming sequence typically erases all previously paired remotes from the vehicle’s memory. If the owner has a second working fob, both units must be programmed in the same session. Second, certain model-year and trim combinations — particularly later Escalade and Yukon Denali variants — may require a diagnostic tool to enter programming mode. A locksmith with a GM-compatible programmer can verify the required method before starting the procedure.

OEM vs. Aftermarket Considerations

The aftermarket ecosystem for this fob is well established, with multiple manufacturers producing compatible shells and complete board assemblies. Price differences between OEM and aftermarket units can be substantial — sometimes a factor of three or more. For budget-conscious vehicle owners, an aftermarket unit paired correctly will generally perform the same core lock-and-unlock functions without issue.

Where OEM quality tends to justify the premium is in longevity. The button pads on genuine GM remotes resist cracking and UV degradation noticeably better than most aftermarket alternatives. The internal circuit board solder joints are also typically more robust, reducing the likelihood of intermittent transmission failures caused by cold solder cracks — a common failure mode in lower-cost units subjected to temperature cycling in glove boxes and cup holders.

When to Call a Locksmith

Vehicle owners comfortable following step-by-step instructions can often complete the on-board programming procedure themselves. However, professional locksmith assistance becomes valuable in several scenarios: when the self-learn procedure fails to initiate, when the vehicle has aftermarket alarm or remote-start systems that interfere with the factory receiver, or when diagnostic confirmation of the 315 MHz signal is needed to rule out a defective unit before purchasing a replacement.

A mobile automotive locksmith equipped with a frequency tester can verify transmission in minutes, potentially saving the cost of an unnecessary second fob purchase. For fleet operators managing multiple Silverados, Sierras, or Suburbans, batch programming sessions also reduce per-unit labor cost significantly compared to individual dealer visits.