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    Key Fob Programming

    2016 Chevrolet Silverado 2500HD Key Fob Programming

    AI-generated reference. Always verify torque values, fluid capacities, intervals, and procedures against the manufacturer's service manual or OEM repair information before performing work. Repairius is not liable for damage from acting on this content without verification.

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    Quick reference

    ItemDetail
    FCC IDM3N-32337100
    OEM Fob PN22881480, 23335584
    Aftermarket OptionsYes, widely available
    Battery TypeCR2032
    Programmable On-Board?Yes
    Cuts Required?Yes, key blade must be cut

    Step-by-step on-board programming

    Programming a new key fob for your 2016 Chevrolet Silverado 2500HD is a straightforward process that you can do yourself in just a few minutes. This procedure will add a new remote to your truck's system. Note that you must have at least one currently working, programmed key to initiate this procedure. If you have lost all your keys, you will need to contact a locksmith or a dealership.

    1. Get in the truck and insert the original key: Close all doors. Insert your original, already programmed key into the ignition.
    2. Start the key cycle: Turn the key to the "ON" position (the position where the dashboard lights and radio turn on, but the engine is not running). Do not start the engine.
    3. Use the Driver Information Center (DIC): Use the menu buttons on the right side of your steering wheel to navigate through the DIC menu until you see "Relearn Remote Key."
    4. Initiate relearn mode: Press the checkmark button to select it. The DIC will display "Ready for Remote #2" (or the next available number).
    5. Program the new fob: Take your new, unprogrammed key fob. Press and hold the "Lock" and "Unlock" buttons simultaneously for about 15 seconds. The truck will chime to confirm that the new remote has been successfully programmed.
    6. Exit programming mode: Turn the ignition off to exit the programming mode.
    7. Test the new remote: Test all the buttons (lock, unlock, remote start, panic) on your new key fob to ensure they are working correctly.

    Repeat these steps for any additional remotes you wish to program.

    Battery replacement

    If your remote's range is decreasing or it works intermittently, it likely needs a new battery. The 2016 Silverado 2500HD fob uses a single CR2032 battery.

    1. Separate the key: Press the small chrome button on the side of the fob to release the physical key blade.
    2. Open the case: Use the key blade or a small flathead screwdriver to gently pry the two halves of the key fob apart. There is usually a small slot for this purpose.
    3. Replace the battery: Note the orientation of the old battery before removing it. Slide the new CR2032 battery into place with the positive (+) side facing up.
    4. Reassemble: Snap the two halves of the fob back together and re-insert the key blade.

    Where to buy a replacement fob

    • Dealership: This is the most expensive option, often running $150-$250 for the fob and programming. However, you are guaranteed an OEM part.
    • Automotive Locksmith: A mobile locksmith can often provide and program an OEM or high-quality aftermarket fob for less than the dealer, typically in the $100-$200 range. They come to you, which is a major convenience.
    • Online (Amazon/eBay): You can find aftermarket fobs for as little as $20-$50 online. While this is the cheapest route, be aware of quality control issues. Some may fail prematurely or have a shorter range. Since you can program it yourself, this is a very low-cost option if you get a reliable unit.

    If on-board programming isn't supported

    For the 2016 Silverado 2500HD, on-board programming is supported, so you don't need to worry about extra costs for a scan tool, provided you have a working key. The key contains a transponder chip (a PK3+ or Circle+ type) which acts as an immobilizer. This chip is programmed to the vehicle along with the remote functions during the simple relearn procedure described above. If you were to lose all your keys, the vehicle would need to be programmed by a locksmith or the dealer using a specialized diagnostic tool to bypass the immobilizer security and introduce new keys to the system. This service typically costs between $150 and $300.

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    More specs for the 2016 Chevrolet Silverado 2500HD

    Oil Capacity & Filter

    Capacity, weight, filter PN, drain plug torque, change interval.

    Fluid Type Specs

    Engine oil, coolant, ATF, diff, brake, PS, DEF — with OEM spec numbers.

    Coolant Capacity & Type

    Total system capacity, OEM coolant spec, flush interval, bleed tips.

    Transmission Fluid & Service

    Trans model, fluid spec, capacity, filter PN, service interval.

    Torque Specifications

    Lug nuts, drain plug, caliper, axle nut, plug, key fasteners.

    Brake Pad & Rotor Specs

    Pad PNs, rotor size, min thickness, caliper torque.

    Tire Size & Pressure

    OEM size, cold psi, bolt pattern, wheel size, TPMS.

    Battery Size & Group

    Group size, CCA, AGM/flooded, dimensions, reset note.

    A/C Refrigerant & Oil

    R-134a or R-1234yf, charge oz, PAG oil spec.

    Bulb Sizes (Headlight, Tail, Fog)

    Headlight, fog, tail, turn, reverse, interior.

    Factory Maintenance Schedule

    Service intervals by mileage, severe-duty notes, known issues.

    Towing Capacity & Payload

    Max tow, payload, GVWR/GCWR, hitch class by trim.

    Fuse Box Diagram & Amperage

    Fuse box locations, layout, amps, and what each fuse controls.

    Serpentine Belt Routing & Length

    Belt routing, length, rib count, OEM + aftermarket PNs.

    Wheel Alignment Specifications

    Camber, caster, toe ranges (front & rear), adjustability notes.

    Paint Color Codes

    All factory colors with paint codes, sticker location, touch-up tips.

    Wiper Blade Sizes

    Driver/passenger/rear blade size, attachment, OEM + cross-refs.

    Spark Plug Type & Gap

    Plug PN, gap, torque, interval by engine.

    Transmission & Axle Gear Ratios

    Trans gear ratios, axle ratios, RPO codes, tow vs MPG impact.

    Same spec — other model years

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