Open Supercharger access explained for UK drivers
Access and credit are two different things. One of them travels to another brand's car; the other does not.
Since March 2026, more than 27,500 Supercharger stalls globally have been open to non-Tesla vehicles, including Ford, GM, Rivian, Hyundai and Stellantis marques. For UK drivers that is a genuine convenience change, and it produces one reasonable question with a firm answer.
The question: does my referral credit travel?
No. Access governs which cars may plug in; a referral charging allowance governs whose account pays. The allowance is held on a Tesla account and drawn down by a Tesla vehicle on that account.
Why no exception is possible
The mechanics rule it out. A Tesla is authenticated by the car itself at the stall, and the allowance is consumed before any payment method is touched — which is why the driver sees no charge until it runs out. A non-Tesla authenticates through its own manufacturer's or a third-party app, which has no visibility of a Tesla balance. Two systems that settle separately.
The household case this rules out
One Tesla and one other-brand EV cannot share 650 referral miles, even at the same stall on the same afternoon. Allowances and credits are documented as non-transferable and cannot be cashed out, so there is no workaround to find.
What it does change for UK drivers
Queues and planning. More vehicles eligible at a site means occupancy matters more than it used to, which is a practical consideration for anyone deliberately routing through Superchargers to spend an allowance before it expires. Mid-week and mid-morning remain the reliable answer.
What it does not change about the referral
Anything. The UK benefit is 650 free Supercharging miles on a new Model 3 or Model Y, unaffected by who else can charge. Treating every Tesla development as referral news is how referral pages lose the reader's trust, so this guide is explicit: open access is good news for road trips and it is not referral news.
The disposal question people ask next
What happens to an unspent allowance if the car is sold. Tesla's published terms do not address it, so this guide states the bounded position: credits are non-transferable and non-reissuable, and an allowance is spent by charging, so the safe reading is that it is worth nothing to a new owner and nothing to you once the car has gone. If a sale is coming, spend it first.
What open access changes about spending a reward at a busy site
One practical adjustment. If a mileage allowance has to be spent inside six months and the sites near you are now open to more vehicles, occupancy is a bigger variable than it was — and a stall you cannot reach is worth nothing regardless of what your balance says. The fix is unglamorous: spend the allowance on planned trips at quiet times rather than on opportunistic top-ups at peak, and check occupancy in the app before you commit to a stop. Nothing about this is specific to the referral, and it decides whether the reward gets used.
The useful question instead
Whether you can physically spend 650 miles inside six months. At ordinary consumption that is roughly four to six Supercharger stops — trivial for someone who cannot charge at home, and a real planning exercise for someone with a wallbox and an overnight tariff.
Sources
Checked against Tesla’s own en_gb pages on
2 September 2026. UK programme terms differ from the US and change
often — re-verify at
tesla.com/en_gb
before you rely on any figure here.