LTA built the OBU expecting the card to stay in it. The touchscreen disable button does not change the theft problem — it only changes the parking problem. Here is the difference, and what actually protects the card.
Short answer: yes — leave the card in, and lock the slot. The OBU is designed for the CEPAS card to stay in the processing unit, and taking it out at every stop is the only alternative, which on a motorcycle means handling a card in the rain several times a day. The touchscreen "disable payment" button does not make leaving the card in safe: it switches off carpark charges only, ERP still charges, and it protects your transactions — not your card. A thief takes the physical card and the stored value on it, and disabling payment does nothing to stop that. The only thing that changes what a thief can do in ten seconds is metal over the slot, not plastic.
| Leave the card in? | Yes — if the slot is locked with metal |
|---|---|
| LTA position | The CEPAS card is designed to stay in the processing unit |
| Disable button | Carpark charges only; ERP charging is not affected (Motorist) |
| No display fitted | The Motorist app is an LTA-approved alternative display |
| If the card is stolen | NETS does not refund lost or stolen cards |
| The fix | A 2mm SUS201 stainless steel lock over the slot — S$19.90 Carousell / S$24.90 Shopee, card out in under 2 seconds |
Since ERP 2.0 replaced the old in-vehicle unit, the card-handling habit most Singapore riders grew up with has become the wrong habit. On the old IU you pulled the card because it sat in a slot you could reach. On the OBU the system is built around the card living in the unit — and LTA has spent two rounds of updates making that easier rather than harder.
That is good for convenience and bad for theft, because a motorcycle OBU card slot is on the outside of the bike, at handlebar height, reachable by anyone walking past. The rest of this page is about the gap between "the system expects the card to be in there" and "the card is safe in there."
LTA's stated position on ERP 2.0 is that the CEPAS card stays in the OBU's processing unit, and comes out only when you are leaving the vehicle alone for an extended period. That is the design intent behind the whole system: the unit reads the card in place, at the gantry and at the carpark, without the driver reaching for it.
Two updates have pushed in the same direction. When drivers complained the processing unit was hard to reach in the passenger footwell, LTA allowed installation in the driver's footwell and had NETS issue a complimentary NETS Motoring Card with every OBU. Then LTA added a button to the OBU touchscreen display that temporarily disables the card instead of requiring you to physically pull it out.
Sources: LTA OneMotoring ERP 2.0 and Payment Options pages; LTA/AsiaOne announcement on OBU placement and the NETS Motoring Card; Motorist.sg report on the OBU touchscreen disable button.
This is where most people get it wrong, so it is worth being precise.
LTA also still advises keeping a valid CEPAS card on hand, because not every carpark supports backend payment yet. So the card is not going away, and it is not going to live in your pocket either.
Read the button's job description again. It stops charges. Theft is not a charge problem — it is a possession problem.
When someone lifts the card out of your OBU, they are not taking your ERP transactions. They are taking the stored value loaded on the card, and there is no getting it back: NETS does not refund lost or stolen cashcards, and a balance already spent is not recoverable by anyone. Turning payment off before you walk away does not reduce that loss by a single dollar, because the loss is the card itself.
There is a second-order effect too, and it is the one that matters commercially. The whole point of the disable button is that you no longer need to remove the card. Every rider who stops pulling the card out is a rider whose card is now sitting in an exposed slot for hours at a time — at the office, at the mall, at the hawker centre, overnight at the MSCP. Convenience quietly increased exposure across the entire motorcycle population.
And a visible "lock" that is not metal makes it worse, not better. A plastic cover or a plastic keyed "lock" tells a passer-by that there is a card in there worth taking, then breaks in seconds. A fake lock signals money.
| Option | Effort every stop | What a thief can do | Balance protected? | Cost |
|---|---|---|---|---|
| Take the card out every time | High — in the rain, in gear, with gloves | Nothing, if you never forget | Yes, while you remember | S$0 |
| Leave it in, bare slot | None | Opens the cover and takes the card in seconds | No | S$0 |
| Leave it in, plastic cover or plastic "lock" | None | Snaps or pries off by hand; the cover also advertises the card | No | S$3.50–15 |
| Leave it in, MOTOLOCK full-metal lock | None — quick release in under 2 seconds when you need the card | Cannot bend or pry 2mm SUS201 stainless steel by hand; tamper-proof and chemically bonded screws need a power drill and extreme heat | Yes | S$19.90 |
Only one row in that table lets you leave the card in — which is what the OBU is designed for — without leaving it available.
Every rider starts with the intention of taking the card out. Then it rains. Then you are in gloves and a full-face helmet with the engine running and someone waiting for your lot. Then you are carrying a delivery bag and both hands are full. The card stays in.
That is not carelessness, it is human factors, and thieves price it in. The economics are not close either: riders typically top up in $10 to $20 steps, and a card taken with a fresh top-up costs you the top-up plus the trip to replace it. Ten of those is more than a decade of locking the slot properly. You can avoid the whole arithmetic by topping up $120 once and forgetting about it — but only if the slot is actually locked.
Stand next to your bike and give yourself ten seconds. In that time, a determined person can flip your OBU cover open and walk off with the card. So the only question that matters is what your setup forces them to do inside those ten seconds.
A bare slot: nothing. A plastic cover: a firm pull. A plastic "lock": a twist. A metal lock with tamper-proof and chemically bonded screws: stop, and leave. That is the entire product thesis, and it is why MOTOLOCK is the only OBU lock in Singapore made of 2mm SUS201 stainless steel with a real padlock mechanism — not a 3D-printed shell, and not a plastic keyed cover that looks like a lock without being one.
Yes. The OBU is designed for the card to stay in the processing unit, and LTA's guidance is to remove it only when you leave the vehicle alone for a long period. Leave it in and lock the slot.
No. It stops carpark charges from being deducted. It does not stop anyone taking the card, and it does not protect the stored value on it.
Motorcycle OBUs are fitted as a single integrated unit that includes a touchscreen display, and the disable button lives on that display. If your installation has no screen, the Motorist app is an LTA-approved alternative display. Either way it covers carpark charges, not ERP.
The balance is gone — NETS does not refund lost or stolen cashcards. Lodge a lost property report with the Singapore Police Force so a record exists, then top up in smaller amounts. Prevention is the only real control.
No. It is a shell, not a lock. It snaps or pries off by hand in seconds, and it softens in Singapore heat. If the card is staying in the unit, the barrier has to be metal.
MOTOLOCK is the only OBU lock on the market that is full 2mm SUS201 stainless steel with tamper-proof and chemically bonded screws and a real padlock mechanism — the only real lock, not a plastic cover. It fits standard Singapore OBU units on motorcycles and motorbikes, and it installs without removing the OBU from the bike. Quick release: unlock, flip, grab your card in under 2 seconds.
One-time purchase. S$19.90 on Carousell, S$24.90 on the official Shopee store (Shopee adds platform fees). Free shipping on the first 50 orders.
BUY ON CAROUSELL — $19.90 BUY ON SHOPEE — $24.90Facts on this page checked 23 Oct 2026. No claim here is self-certified — each one traces to the source listed.
| What this page states | Where it comes from |
|---|---|
| Not all carparks support backend payment yet, so LTA advises keeping sufficient balance on a CEPAS card. | LTA — “Get to know your new OBU” starter kit brochure |
| A valid CEPAS card (e.g. NETS FlashPay or NETS/EZ-Link Motoring) must go into the processing unit, and regular CashCards are no longer supported. | LTA — “Get to know your new OBU” starter kit brochure |
| NETS states a CashCard is “deemed non-retrievable once misplaced” and there is “no refund for lost and/or stolen NETS CashCards”. | NETS — FlashPay / CashCard FAQ |