2019 Jeep Cherokee 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 | M3N-40821302 |
| OEM Fob PN | 68442805AB, 68442805AC, 68442805AD |
| Aftermarket Options | Look for compatibility with FCC ID M3N-40821302 |
| Battery Type | CR2032 |
| Programmable On-Board? | No (Scan tool required) |
| Cuts Required? | Yes (for emergency key blade) |
Step-by-step on-board programming
Unfortunately, the 2019 Jeep Cherokee does not support DIY on-board key fob programming. This means you cannot simply follow a sequence of button presses or key turns to program a new fob yourself. The vehicle's immobilizer system requires a specialized scan tool to link new key fobs to the vehicle's computer. This is a security measure implemented by manufacturers to prevent unauthorized key duplication.
Therefore, you will need to seek assistance from a professional such as a locksmith or a Jeep dealership to program a new key fob.
Battery replacement
- Locate the release button: On the back or side of your key fob, you'll find a small button or switch. Press or slide this to release the emergency key blade.
- Remove the emergency key: Pull the emergency key blade completely out of the fob.
- Separate the casing: With the emergency key removed, you should see a small slot or indentation. Use a thin, flat tool (like a small screwdriver or a guitar pick) to carefully pry open the two halves of the key fob casing.
- Remove the old battery: Gently pry out the old CR2032 battery. Note the orientation of the positive (+) side as you remove it.
- Insert the new battery: Place the new CR2032 battery into the fob with the positive (+) side facing the same direction as the old one.
- Reassemble the fob: Carefully snap the two halves of the key fob casing back together until it's secure. Reinsert the emergency key blade.
Where to buy a replacement fob
- Jeep Dealership:
- Pros: Guaranteed to be an authentic OEM part, often comes with programming services included.
- Cons: Most expensive option. Expect to pay anywhere from $250 to $400 or more for the fob and programming.
- Automotive Locksmith:
- Pros: Often more affordable than the dealership, can come to your location (mobile locksmiths), and can cut and program keys on-site. Can often provide both OEM and quality aftermarket options.
- Cons: Make sure the locksmith is reputable and experienced with your vehicle's make and model. Costs typically range from $150 to $300 for a new fob and programming.
- Online Retailers (e.g., Amazon, eBay):
- Pros: Can find fobs for a significantly lower price than dealerships. Sometimes you can find blank key fobs or ones pre-cut to your vehicle's specifications if you provide a VIN.
- Cons: You still need to pay a locksmith or dealer to cut the emergency key blade and program the fob. There's a risk of purchasing a counterfeit or incompatible fob. Prices for a blank fob can be as low as $30-$80, but remember to factor in programming and cutting costs.
If on-board programming isn't supported
Since the 2019 Jeep Cherokee requires a scan tool for key fob programming, you'll need professional assistance. This is because the key fob contains an immobilizer transponder chip, which communicates with your vehicle's engine control unit (ECU). The scan tool "marries" the unique code of the new transponder chip to your vehicle's immobilizer system, allowing it to start the engine. Without this programming, even if the remote functions work, the car will not start.
Expect to pay for the cost of the key fob itself, the cutting of the emergency key blade (if applicable), and the labor for the programming service. As mentioned above, a locksmith is typically the most cost-effective solution, balancing convenience and price.
Find a mobile locksmith or shop on Repairius.
More specs for the 2019 Jeep Cherokee
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 Jeep Cherokee 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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