If you own a Tesla Model 3, Y, S, or X without HomeLink and you’ve started researching the official retrofit, you’ve probably encountered the part number 1114984-00-B. This is the OEM Tesla HomeLink module — the same hardware Tesla installs at the factory, sold separately for owners who didn’t get HomeLink standard or who need to replace a failed module.

This piece covers what 1114984-00-B actually is, which Teslas it fits (Cybertruck owners: it’s not for you, and we’ll explain why), real pricing across the channels people actually buy from, the DIY install procedure, and the vopt2 software step that catches a lot of first-time installers off guard.

What is Tesla part 1114984-00-B?

The 1114984-00-B is Tesla’s current-revision OEM HomeLink module. It’s a small electronic assembly that mounts in the overhead console area near the dome light, plugs into a wiring harness that’s pre-installed on most Teslas from the factory, and adds the HomeLink garage door and gate control feature to your car’s touchscreen.

Tesla sometimes refers to the module internally as “HomeLink Module V Option 2,” which is where the vopt2 configuration flag name comes from. That naming matters: after hardware install, the car needs a software config update to actually recognize the module is there. We’ll cover that in detail below.

The part number itself decodes:

  • 1114984 — Tesla’s internal SKU for the HomeLink module family
  • -00 — variant identifier (only one variant currently in production)
  • -B — current revision (-A was an earlier revision, now superseded)

If you see the same module listed as 111498400B (no hyphens), that’s the same part. Some third-party sellers strip the hyphens for cleaner URLs.

Which Teslas does 1114984-00-B fit?

The short answer: all Tesla passenger cars currently in production EXCEPT Cybertruck.

  • Model 3 — all years (2017+), including the 2024+ Highland refresh. This is the main retrofit case, and Tesla’s own support documentation lists the Automatic Garage Opener retrofit for Model 3.
  • Model Y — all years (2020+), including the 2026+ Juniper refresh. The other officially supported retrofit case.
  • Model S — older Model S typically already include HomeLink from the factory, so this is a replacement-part case rather than a from-scratch retrofit, but the same part applies.
  • Model X — same as Model S
  • Cybertruck — NOT compatible

(Tesla’s published retrofit path covers Model 3 and Model Y specifically; on Model S and Model X the module shows up as a factory-fitted or replacement part rather than an advertised retrofit kit.)

Cybertruck is the consequential exception. Tesla didn’t include the HomeLink wiring harness in Cybertruck, so the 1114984-00-B has no place to plug in. There’s no current factory retrofit option for Cybertruck regardless of who does the install — not Tesla Service, not Tesla Mobile Service, not DIY. Cybertruck owners who want garage or gate control end up choosing between myQ subscription, aftermarket smart controllers, the physical clicker workaround, or pre-launch hardware like Proxly.

What 1114984-00-B costs (across every channel)

Three pricing tiers exist, with meaningful trade-offs:

Through Tesla Service: ~$350 installed

This is the official path, and Tesla’s published guidance is that the retrofit must be installed by a Tesla technician. Tesla orders the module, ships it to the service center of your choice, schedules a service appointment, installs it, and runs the software activation. Warranty applies. The all-in figure lands around $350 and varies by region and by model — the refreshed Highland Model 3 and Juniper Model Y cost more to install because of the harder routing (more on that below).

New OEM from third-party sellers: $169-$240 (about $220 direct from Tesla)

The part is widely available on Amazon, eBay, evolutionparts.net, and similar channels as new OEM stock, typically in the $169-$240 range; Tesla’s own direct part price is around $220. The kit includes the module, the mounting bracket, and the screw. Identical hardware to what Tesla Service installs — these aren’t aftermarket clones, they’re genuine OEM units sourced through Tesla parts distribution.

The catch: Tesla Service typically won’t install a unit you bought elsewhere, especially if the box has been opened. Some Service Centers will run the software activation for an $80-$120 “mobile service” fee if you’ve already done the hardware install yourself, but the policy is inconsistent across regions.

Used: $120-$150

The Tesla Motors Club forum sales section regularly lists used modules — usually from owners who pulled the module before selling a car, or upgraded to a different vehicle. Pricing trends $120-$150 depending on revision and condition. Buy with caution: there’s no warranty path, and you’re trusting the seller that the module wasn’t pulled from a salvaged or accident vehicle. Calimotive and similar auto recyclers also sell pull-from-recycled units at similar prices.

How to install 1114984-00-B yourself (pre-refresh models)

DIY install is straightforward on Model 3 (pre-2024) and Model Y (pre-2026). About 20 minutes start to finish.

Tools you need:

  • 10mm driver or socket
  • Flat blade screwdriver
  • A second person is helpful (one to hold the trim panel, one to plug in the module)

The procedure:

  1. Turn the car off. Park, foot off the brake, walk away for 30 seconds so the car fully sleeps. This prevents any electrical short during install.

  2. Locate the overhead console area near the dome light. That’s where the HomeLink module installs. On Model 3 and Y, this is the panel that wraps around the dome light and the front of the cabin.

  3. Carefully pry down the overhead console panel. Use the flat blade screwdriver. The panel is held by clips — work around the edges, applying gentle outward pressure. The panel should release without breaking.

  4. Find the pre-installed wiring harness. Most Teslas from the factory have the HomeLink harness already routed and waiting, even on cars that didn’t include the module. The harness is a small black connector with 4-6 pins.

  5. Plug the 1114984-00-B module into the harness. The connector is keyed — only fits one way. Push firmly until you hear/feel the click.

  6. Secure the module with the included bracket and 10mm screw. The bracket clips into the existing mounting points.

  7. Reattach the overhead panel. Press it firmly back into place around the clips.

  8. Set the vopt2 software flag. This is the step most DIY install guides skip. Without vopt2, the module is wired but the touchscreen won’t recognize it. See the next section.

The vopt2 software step (don’t skip this)

After the hardware install is done, the car needs to be told the HomeLink module is now present — a software activation, not just a wiring step. DIY guides describe running a “HomeLink retrofit” routine from the car’s Service menu (via the diagnostic gateway) to turn the feature on. In owner and service-doc shorthand this config flag is commonly called vopt2 or “V Option 2”; whatever you call it, the point is the same: enabling it is what makes the HomeLink UI appear on the touchscreen.

Without vopt2 set:

  • The module is physically installed and wired
  • The Settings → Controls menu won’t show a HomeLink option
  • The touchscreen won’t display HomeLink controls during arrival
  • It looks identical to “the install didn’t work”

How to set vopt2:

If Tesla Service is doing the install: they handle vopt2 automatically as part of their procedure. No action required from you.

If you’re DIY-installing: you need one of:

  • Tesla Toolbox 3.0 — Tesla’s diagnostic and configuration software. Requires a subscription ($150-$200/year as of 2026) and a compatible J2534 interface. The official way to set vopt2 yourself.
  • Service Mode access — Tesla added Service Mode to consumer-facing software in 2022, but the vopt2 flag is NOT exposed in the public Service Mode menus. So this path doesn’t currently work for vopt2 specifically.
  • A friendly Tesla Service Center — some Service Centers will set vopt2 for $80-$120 as a “software service” appointment even if you bought the module elsewhere. Worth calling ahead and asking; policy varies by region.

This is the single biggest gotcha with 1114984-00-B DIY installs. People install the hardware correctly, get no HomeLink option on the touchscreen, conclude the module is dead, and return it — when the actual issue is vopt2 was never set.

Highland Model 3 and Juniper Model Y (the harder install)

The refreshed Tesla lineup brought a meaningful install change. On 2024+ Highland Model 3 and 2026+ Juniper Model Y, the module no longer lives in the overhead console. DIY write-ups on the Highland describe the connector being routed up front — in the frunk, on the passenger side near the windshield washer reservoir — and the module itself mounting behind the front bumper, as close to the composite bumper surface as possible for signal transmission. To reach it, installers describe pulling the front bumper.

Practical implications:

  • DIY install time goes from ~20 minutes to 1-2 hours
  • You’re working in the frunk / bumper area, not the headliner — and reaching the mount usually means removing the front bumper
  • There’s no factory-threaded bracket point on the refresh cars, so some DIY installers fabricate their own bracket/adhesive mount
  • Tesla Service install runs higher than on pre-refresh cars because of the added labor
  • Several Tesla Motors Club threads document DIY attempts on Highland that ended in damaged trim clips — the bumper area is less forgiving than the overhead area

If you have a Highland Model 3 or Juniper Model Y, the math usually favors Tesla Service install. The DIY part savings don’t offset the time cost and the risk of cosmetic damage to a $50K+ vehicle.

After 1114984-00-B is installed: pairing to your opener

Once the module is installed and vopt2 is set, the touchscreen will show HomeLink controls under Settings → Controls → HomeLink. From there, you pair the module to your specific garage door opener or driveway gate using the standard HomeLink LEARN procedure.

For garage doors, the pairing usually takes 2-5 minutes. For driveway gates — especially LiftMaster Security+ 2.0 or Chamberlain commercial gate operators — the procedure has more gotchas. We covered the LiftMaster pairing flow in detail in How to Pair Tesla HomeLink to a LiftMaster Gate Operator, including the three places it usually goes wrong.

If your gate uses Security+ 3.0 — the newest LiftMaster/Chamberlain rolling-code protocol — HomeLink may not be able to pair at all. That’s not a 1114984-00-B problem; HomeLink as a category doesn’t yet speak Security+ 3.0. We wrote up the protocol-mismatch issue in Why HomeLink Stops Working with Your Driveway Gate.

When 1114984-00-B isn’t the right answer

The retrofit module is the right answer for most Tesla owners who want HomeLink and have a HomeLink-compatible opener. But it’s not the right answer for everyone.

Cybertruck owners: The part doesn’t fit. No factory retrofit exists. See our Tesla HomeLink alternatives breakdown for the seven real options available to Cybertruck owners.

Owners on Security+ 3.0 garage doors or gates: HomeLink doesn’t speak Security+ 3.0 yet, so installing the module solves nothing for you. Look at aftermarket smart controllers (Meross, Tailwind, RATGDO) or a hands-free system that doesn’t depend on RF protocol matching.

Owners with multi-opener setups (gate + garage + guesthouse): HomeLink has a hard 3-channel limit. If you’ve got more than three openers — common on rural properties with separate gate, garage, and ADU openers — you’ll run out of buttons.

Owners who want hands-free arrival but don’t have Tesla Garage Auto-Open or Rivian arrival assist: HomeLink alone doesn’t auto-open. You’d need Garage Auto-Open (Tesla M3/Y with HomeLink and the feature subscription) for the hands-free experience.

Where Proxly fits

We’re building Proxly for the cases where HomeLink retrofit doesn’t make sense — Cybertruck owners, Security+ 3.0 households, multi-opener properties, and anyone who wants hands-free arrival without the Tesla-specific Garage Auto-Open path.

Proxly is a small windshield Tag plus a Hub wired to your existing opener. The Tag detects when your car is arriving or leaving and talks locally to the Hub, so your gate or garage opens automatically — no clicker, no phone tap, no HomeLink, and no subscription. Works on any car (including Cybertruck), with any opener brand, regardless of rolling code generation.

We’re pre-launch — Beta-20 runs through summer 2026, with Kickstarter after. If 1114984-00-B isn’t an option for your Tesla or your opener, getproxly.com is where to follow the build.

Bottom line

For most Tesla Model 3, Y, S, and X owners who want HomeLink, the 1114984-00-B is the right answer. The pricing is reasonable (roughly $120-$240 for the part depending on channel, or about $350 installed by Tesla Service), the install is doable for most owners on pre-refresh cars, and the part itself is genuinely the same hardware Tesla puts in factory-equipped vehicles.

The two install gotchas to watch:

  1. Highland Model 3 / Juniper Model Y require front-bumper-area work. DIY install jumps from a 20-minute job to a 1-2 hour job. If you have a refresh-era car, factor that in.

  2. The vopt2 software step trips up most DIY installs. Hardware install alone doesn’t enable HomeLink. The car needs the vopt2 flag set via Tesla Toolbox or a Service Mode workaround.

If you’re a Cybertruck owner, this part isn’t for you — and that’s not your fault, it’s a structural gap in Cybertruck’s harness design. The alternatives covered in HomeLink Alternative for Tesla are the path forward.

Frequently asked questions

What is Tesla part 1114984-00-B?
1114984-00-B is the Tesla OEM HomeLink module — the same hardware Tesla installs at the factory. Tesla sells it as a retrofit kit for owners whose vehicle shipped without HomeLink (most Model 3 since 2019, Model Y, and some Highland/Juniper refresh trims) or as a replacement for a failed factory module. The part is sometimes labeled 'HomeLink Module V Option 2' in Tesla service documentation, which refers to the software configuration mode it requires after install.
Which Teslas does 1114984-00-B fit?
Model 3 (all years including 2024+ Highland refresh), Model Y (all years including 2026+ Juniper refresh), Model S, and Model X. The same part number works across these models — Tesla unified the HomeLink module hardware across the lineup. The part does NOT fit Cybertruck. Cybertruck shipped without a HomeLink wiring harness, so there's no install path even with the part in hand. Cybertruck owners need a different solution (myQ, Meross, Tailwind, or a third-party hands-free system).
How much does Tesla 1114984-00-B cost?
Three pricing tiers exist. New OEM from third-party sellers (Amazon, eBay, evolutionparts.net): roughly $169-$240 for the module, bracket, and screw; Tesla's own direct part price runs around $220. Installed by Tesla Service: approximately $350 all-in including labor. Used modules from Tesla Motors Club forum sales or recyclers like Calimotive: roughly $120-$150 depending on condition. Note: Tesla's official line is that the retrofit must be installed by a Tesla technician; Service won't honor warranty on a module installed elsewhere, and won't typically install a unit whose box has been opened.
Can I install Tesla 1114984-00-B myself?
Tesla's official guidance is that the retrofit should be installed by a Tesla technician, but owners do self-install. It's most practical on pre-refresh Model 3 and pre-Juniper Model Y: about 20 minutes with a 10mm driver or socket and a flat blade screwdriver, with the module sitting in the overhead console area near the dome light and the wiring harness already present in most cars from the factory. On Highland Model 3 (2024+) and Juniper Model Y (2026+), the module mounts behind the front bumper and the connector routes through the frunk near the washer reservoir — reaching it usually means pulling the front bumper, which is significantly more involved, so many owners pay Tesla Service to handle it. After the hardware step, you still need the software activation set for the touchscreen to recognize the module.
What is vopt2 and why does it matter for 1114984-00-B?
vopt2 (sometimes written as 'V Option 2') is a software configuration flag in Tesla's vehicle config that enables the HomeLink module after hardware install. Without vopt2 set, the module is physically wired but the touchscreen won't show HomeLink controls — the car doesn't 'know' the module is installed. Tesla Service sets vopt2 automatically when they do the install. DIY installers need Service Mode access (limited functionality) or Tesla Toolbox 3.0 to flip the flag. This is the most common reason DIY installs appear to 'fail' — the module is in, the wiring is correct, but the software isn't told.
Will Tesla Service install a 1114984-00-B I bought from Amazon or eBay?
Usually not, especially if the box has been opened. Tesla Service has a documented policy of not installing third-party-sourced modules or modules whose factory packaging shows signs of opening. The stated reason is they can't warranty the part. The practical workaround owners report on Tesla Motors Club: bring the unopened third-party box to Service and ask. Some Service Centers accept the request; many will quote you a 'mobile service' charge of $80-$120 just for the vopt2 software step alone, even if you've already installed the hardware. The cleanest path is either full DIY (hardware + Toolbox 3.0 access) or full Tesla Service (their part, their install).
Will 1114984-00-B work on Highland Model 3 or Juniper Model Y?
Yes on both. Tesla kept the same part number for the refreshed Highland Model 3 (2024+) and Juniper Model Y (2026+). What changed is the install procedure — on the refresh cars the module mounts behind the front bumper (the connector routes through the frunk near the washer reservoir) rather than in the overhead console, and reaching it usually means pulling the front bumper. Hardware compatibility is unchanged. If you have a Highland or Juniper Tesla, expect either Tesla Service install at full price or a meaningfully harder DIY than the pre-refresh procedure. Some owners on Tesla Motors Club report 1-2 hour DIY install times on Highland vs 20-minute installs on pre-Highland, and several describe fabricating their own bracket because there's no factory mount point up front.
I just want to open my garage without paying a monthly fee — is the module the answer?
If you have a Model 3 or Model Y and a HomeLink-compatible opener, yes — the 1114984-00-B is a one-time hardware cost with no subscription, which is exactly what a lot of owners want after discovering Tesla's myQ integration is a paid service. That's the most common reason owners on r/TeslaModel3 and r/TeslaLounge pick the retrofit over myQ. Two caveats: it's Model 3/Y only (Cybertruck has no path), and HomeLink by itself doesn't auto-open as you approach — you tap the screen button, or you add Tesla's Garage Auto-Open feature for the hands-free behavior. If you want no monthly fee AND no tap, neither HomeLink alone nor a clicker fully covers it, which is the gap dedicated hands-free hardware is built for.
I'm coming from a car that had a HomeLink button — does the retrofit give me the same thing?
Functionally yes. A frequent surprise for owners moving to a Tesla from a BMW, Audi, or an older HomeLink-equipped car (including an earlier Tesla that had it standard) is that the visor garage button is gone. The 1114984-00-B retrofit restores that capability on Model 3 and Model Y, and because HomeLink uses the same RF standard, any opener your old car was paired to should pair again with the same LEARN procedure — no need to reprogram the opener itself. The retrofit just isn't standard equipment anymore, so it's now a cost you add rather than one that comes with the car.
What's the difference between 1114984-00-A and 1114984-00-B?
The -A and -B suffixes are Tesla's part revision markers. 1114984-00-B is the current revision — that's what Tesla ships from Service and what third-party sellers stock new. 1114984-00-A was an earlier revision, functionally equivalent for HomeLink purposes but superseded. If you're buying used, either revision works the same on the install side. If you're buying new, you'll almost always receive -B; treat -A as a sign of an older or new-old-stock unit.
Team Proxly

The engineers building Proxly — a small GPS Tag and Hub, wired to your existing gate or garage opener, that opens it automatically when you pull in. No app, no subscription. Built in California.

See how Proxly works → Apply for the Beta →