2019 Toyota Corolla Key Fob Programming Guide
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
| Item | Detail |
|---|---|
| FCC ID | HYQ14FBC |
| OEM Fob PN | 89904-02A30 |
| Aftermarket Options | Dorman 13735, various on Amazon/eBay |
| Battery Type | CR2032 |
| Programmable On-Board? | No, requires diagnostic scan tool |
| Cuts Required? | Yes, for emergency key blade |
Step-by-step on-board programming
Unfortunately, the 2019 Toyota Corolla does not offer a do-it-yourself (DIY) or on-board programming procedure for new key fobs. This is because the key fob is not just a remote for locking and unlocking the doors; it contains an immobilizer transponder chip that must be electronically paired with the vehicle's computer.
To program a new key fob, specialized diagnostic equipment is required to access the car's immobilizer system. This means you will need to have the programming performed by a Toyota dealership or a qualified automotive locksmith.
Battery replacement
Replacing the battery in your 2019 Corolla fob is a simple task you can do yourself.
- Release the emergency key: Press the small button on the side of the fob to slide out the physical key.
- Open the case: Insert the tip of the emergency key (or a small flathead screwdriver) into the slot where the key was and gently twist to pry the two halves of the fob apart.
- Replace the battery: The fob uses a single CR2032 battery. Note the orientation of the old battery before removing it. Slide the new battery into place with the positive (+) side facing up.
- Reassemble: Snap the two halves of the fob case back together and re-insert the emergency key.
Where to buy a replacement fob
- Toyota Dealership: This is the most expensive option, often costing over $300 for the fob and another $100+ for programming and cutting the emergency key. However, you are guaranteed to get a genuine OEM part that is compatible with your vehicle.
- Automotive Locksmith: A locksmith can typically provide and program an OEM or high-quality aftermarket fob for significantly less than a dealer. Expect to pay in the range of $150–$250 for the fob and programming service combined. Many locksmiths are mobile and can come to your location.
- Amazon/eBay: You can find many affordable fobs online, with prices ranging from $30 to $100. Be cautious, as quality can vary, and some may not be programmable. Ensure the FCC ID (HYQ14FBC) matches your original fob. Remember that even if you buy a fob online, you will still need to pay a locksmith or dealer to program it and cut the key.
If on-board programming isn't supported
As mentioned, the 2019 Corolla requires a professional with a scan tool for programming. The tool communicates with the vehicle's immobilizer system to register the new transponder chip inside the key fob. This security measure prevents unauthorized individuals from easily creating a key for your car.
When a locksmith or dealer programs a new fob, they will erase all previously stored keys from the vehicle’s memory (except for the ones you currently have and want to keep). This is a security feature to ensure any lost or stolen keys can no longer be used to start the car. It is crucial to bring all existing and new keys with you to the programming appointment.
Find a mobile locksmith or shop on Repairius.
More specs for the 2019 Toyota Corolla
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
Maintenance & repair guides
2019 Toyota Corolla Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
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