2021 Subaru Outback 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
| Item | Detail |
|---|---|
| FCC ID | HYQ14AHK |
| OEM Fob PN | 88835AN03A |
| Aftermarket Options | Keyless2Go, RemotesRemotes |
| Battery Type | CR2032 |
| Programmable On-Board? | No |
| Cuts Required? | Yes, laser cut |
Step-by-step on-board programming
Unfortunately, the 2021 Subaru Outback does not have an on-board programming procedure for new key fobs. This is because the key fob is also linked to the immobilizer system, which requires a specialized scan tool to program. This is a security measure to prevent unauthorized key copying.
To program a new key fob, you will need to take your vehicle to a Subaru dealership or a qualified automotive locksmith. They will have the necessary equipment to program the new key to your vehicle's computer.
Battery replacement
Replacing the battery in your 2021 Subaru Outback key fob is a simple process you can do at home.
- Locate the small button on the back of the key fob. Press this button to release the emergency key.
- Remove the emergency key.
- Use a small flathead screwdriver or a coin to pry open the two halves of the key fob. There is a small indentation along the seam where you can insert the tool.
- Carefully separate the two halves of the key fob.
- Remove the old battery. Note the orientation of the positive and negative terminals.
- Insert the new CR2032 battery. Make sure the positive side is facing up.
- Snap the two halves of the key fob back together.
- Re-insert the emergency key.
Where to buy a replacement fob
- Subaru Dealership: This is the most expensive option, but you are guaranteed to get a genuine OEM key fob that is compatible with your vehicle. Expect to pay around $200-$400 for the fob and programming.
- Automotive Locksmith: A locksmith can often provide you with a new key fob and program it for less than the dealership. They may offer either OEM or aftermarket fobs. Expect to pay around $150-$300.
- Online Retailers (Amazon, eBay): You can find aftermarket key fobs online for as little as $50. However, you will still need to take the fob to a dealership or locksmith for programming. Be aware that some online retailers may sell low-quality or incompatible fobs.
If on-board programming isn't supported
As mentioned, the 2021 Subaru Outback requires a specialized scan tool to program new key fobs. This is because the key fob contains a transponder chip that is part of the vehicle's immobilizer system. The transponder chip must be programmed to the vehicle's computer in order for the key to start the engine.
If you lose your only key, you will need to have your vehicle towed to a dealership or locksmith to have a new key programmed. This can be a costly and time-consuming process, so it is always a good idea to have a spare key.
Find a mobile locksmith or shop on Repairius.
More specs for the 2021 Subaru Outback
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
2021 Subaru Outback 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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