My girlfriend's 2015 (15) Fiesta's TPMS sensors need replacing and a local tyre fitter will install them for £15 per tyre if the sensors are supplied. We can't see what symbol should be on the sensor (square, circle or triangle) without removing the tyre and any internet search either 'misunderstands' the question or returns results of other people asking the same question without getting an answer.

I know what my 2016 Fiesta's sensors are but having assumed that the two cars would have the same light bulbs only to discover that hers are H15 whilst mine are H1, I don't want to make assumptions. Is there any way of looking up which sensors they should be?

I'd say 'Square'

@iantt can possibly confirm that.

On 8/13/2025 at 2:31 PM, unofix said:

Now regarding the TPMS. The batteries in all 4 of your 2015 cars wheels will be at the end of there life, so you may as well replace them all and do the job just once.

You programme them once they have been fitted and the wheels are back on the car.

 

Yep, square. 

Thanks everybody. The ones in mine are square but I didn't want to say before I got some feedback.

Incidentally, I bought one of those programming tools as shown in the photo and it didn't work on my 16 Fiesta. I got a refund and bought the small grey type with the green button which works perfectly.