Chevy, GMC, Buick & Cadillac Transponder Keys

Shop Chevy, GMC, Buick, and Cadillac transponder keys for automotive locksmithing, duplicate-key, and all-keys-lost services. Noble Key Supply carries aftermarket keys for select General Motors cars, trucks, vans, and SUVs equipped with immobilizer systems.

The collection includes multiple transponder technologies, blade profiles, and key-head styles used across different GM vehicle generations. Compare the chip type, keyway, test-key reference, replacement part number, and programming requirements before choosing a key.

Chevrolet Transponder Keys

Find Chevrolet transponder keys for select vehicles with traditional keyed-ignition systems. Available styles include B111, B119, B120, B121, B114, DW04T, DW04RAP, DW05AP, GM45, and other application-specific keys.

Depending on the product, these keys may be compatible with select Chevrolet cars, trucks, SUVs, and vans. Potential applications include certain Silverado, Colorado, Equinox, Express, Impala, Malibu, Sonic, Spark, Suburban, Tahoe, and Traverse vehicles.

Chevrolet used different immobilizer systems and blade profiles across model years and trims. Always confirm the complete application rather than relying on the vehicle model alone.

GMC Transponder Keys

Shop replacement transponder keys for select GMC vehicles, including applications that may cover certain Sierra, Canyon, Acadia, Savana, Terrain, and Yukon models.

Chevrolet and GMC trucks or SUVs may share platforms, but their keys can still vary by model year, ignition system, production date, and trim. Verify the original key’s blade and transponder technology before ordering or cutting a replacement.

Buick Transponder Keys

The collection includes transponder-key styles for select Buick vehicles equipped with keyed ignitions. Available products may support certain Buick sedans, crossovers, and SUVs that use GM immobilizer systems.

Some Buick applications use familiar GM Circle Plus or PK3+ key styles. However, similar key heads may contain different chips or use different blade profiles. Compare the original key and applicable part numbers with the product listing.

Cadillac Transponder Keys

Find aftermarket transponder keys for select Cadillac vehicles with conventional ignition-key systems. Compatibility varies significantly between models and production years, particularly as Cadillac transitioned from traditional keys to remote-head and proximity-key systems.

Confirm that the vehicle requires a standalone transponder key instead of a remote key or proximity key before selecting a replacement.

Available GM Transponder-Chip Technologies

Chevy, GMC, Buick, and Cadillac vehicles have used several immobilizer technologies. This collection includes keys with options such as:

• ID13 and T5 transponder chips
• Philips ID46 transponder chips
• ID46 EXT technology
• ID48 and Megamos 48 chips
• GM PK3+ transponder technology
• 46E PCF7937 chips
• Philips 40 transponders

The chip must be electronically compatible with the vehicle’s immobilizer system. A properly cut blade may turn the ignition but will not start the engine if the chip is incorrect or has not been programmed.

GM Circle Plus and PK3+ Keys

Several products in this collection use the GM Circle Plus key style. The plus symbol enclosed by a circle on the original key head can be a useful identification detail, but it should not be the only factor used to select a replacement.

GM PK3+ keys use transponder technology that must be matched and programmed to the vehicle. Always verify the chip, blade, keyway, and part number in addition to any visible key-head markings.

Common GM Keyways and Blade Profiles

The collection includes keys associated with multiple GM keyways, including:

• B111 and GM37
• HU100
• GM39
• DW05 and CH1
• DW04R
• TOY43R
• GM45
• HU46

Product pages may also provide test-key references such as B106, B109, B102, B96, DW04RAP, and B61. These references help automotive locksmiths distinguish between keys that may have similar plastic heads but different blade configurations.

Emergency Blade Options

Select transponder keys in the collection include an aftermarket emergency blade. Confirm whether the blade is part of the transponder-key assembly and whether its profile matches the customer’s vehicle.

An emergency blade provides mechanical access but does not replace the transponder’s electronic function. The chip must still be compatible and programmed before the key can start an immobilizer-equipped vehicle.

Confirm Compatibility Before Ordering

Before purchasing a GM transponder key, verify:

• Vehicle year, make, model, and trim
• Original key-head shape and markings
• Required transponder-chip technology
• Keyway and blade profile
• OEM or aftermarket part numbers
• Test-key and Lishi references
• Immobilizer-system generation
• Supported programming method

Using several identifiers together helps prevent costly cutting and programming mistakes.

Cutting and Programming GM Transponder Keys

The key must first be cut accurately for the vehicle’s locks and ignition. Some GM keys use traditional edge-cut blades, while others use high-security profiles such as HU100. Always use the correct cutting machine, jaw, cutter, and decoding method for the blade.

After cutting, the transponder must be registered with the immobilizer system. Some GM vehicles support an onboard programming procedure, particularly when working keys are available. Other applications and all-keys-lost situations may require compatible automotive programming or diagnostic equipment.

Procedures vary by vehicle and immobilizer generation. Maintain stable battery voltage, follow the equipment manufacturer’s instructions, and verify the application before beginning.

Shop GM Transponder Keys

Browse Noble Key Supply for aftermarket Chevy, GMC, Buick, and Cadillac transponder keys. Compare chip types, blade profiles, test-key references, Lishi information, and replacement part numbers to select the correct key for your next automotive locksmith job.