The Altroz fog lamp on today's car is a slim LED unit sitting in the outer edges of the bumper, below the headlamps, and only the two Accomplished trims get it from the factory. Tata wires it to double as a cornering light, so the lamp on the inside of a slow turn glows to show the kerb.
Back on the earlier version, XZ and costlier trims carried halogen fogs that did the same cornering trick. Smart, Pure and Creative buyers, plus XE to XT owners of the older car, drive without any, and that gap is the usual reason people search this topic.
Altroz fitment card
- Tyre size
- 185/60 R16 on every current variant
- Wheels
- 16 inch steel (Smart to Creative S), 16 inch alloy (Accomplished trims)
- Tyre pressure (cold)
- Front 32 psi, rear 32 psi
- Full load pressure
- Front 35 psi, rear 35 psi
- Spare
- 165/80 R14 steel space saver
- PCD
- 4 x 108 mm
- Wiper blades
- 24 inch driver side, 16 inch passenger side
- Earlier version base tyre
- 165/80 R14 on XE and XE+ with 14 inch steel wheels
Altroz trims with factory fogs
| Version | Trims | Fog lamp type |
|---|---|---|
| Current | Accomplished S, Accomplished+ S | LED, also used as cornering lamp |
| Current | Smart to Creative S | Not listed from the factory |
| Earlier version | XZ and above | Halogen with cornering function |
Equipment lists shift from batch to batch, so inspect your own bumper corners before ordering anything. A car with fogs also shows a small fog symbol on the headlamp stalk ring.
Finding the right bulb or unit for your Altroz fog lamp
The LED lamp on Accomplished cars has its diodes sealed inside, with no separate bulb to pull out. When one dies, a fresh housing goes in. Its part code sits on a sticker at the rear of the casing; unclip a few liner fasteners in the front wheel arch to read it with a torch.
Earlier halogen cars are simpler. Twist the bulb holder out from behind, and the bulb type is stamped on the metal collar. Carry that old bulb to a parts shop and buy the identical type and wattage. Fitting a hotter, stronger bulb risks scorching the plastic socket and its plug.
Giving a Pure or Creative its missing fogs
Plenty of owners of the mid trims want the Accomplished face. Doing it properly means genuine lamp units, the matching bumper bezels, a harness that runs via its own relay plus fuse, and the right stalk or switch. Your dealer can say whether the factory loom on your car already carries an empty fog connector.
- A relay carries the lamp current so the stalk contacts do not burn.
- Place the fuse within a hand span of the battery terminal.
- Wrap every joint in heat shrink, since bumper corners get soaked when you cross flooded underpasses.
Aiming the beam and using it fairly
A good fog beam is flat and wide, spreading over the tarmac just in front and onto the road edges. Tilted up, it blinds the trucker coming the other way. To check, stop on a flat stretch facing a wall from roughly 5 metres; the sharp upper edge of the light should land below the height at which the lamps are mounted. Keep them for thick mist, blinding rain or swirling dust, never as bonus high beams. Plain white or selective yellow is what most owners choose. Bluish bulbs look bright to the eye but light less of the road.
Common problems and fixes
| Problem | Likely cause | Fix |
|---|---|---|
| One lamp dead | Failed LED unit or halogen bulb | Replace that unit or bulb |
| Both lamps dead | Blown fuse or relay | Check fuse box under the dashboard and bonnet |
| Fog inside the lens | Cracked housing or broken seal | Replace housing before water ruins it |
| Lamp hangs loose | Broken mounting clip after a speed breaker scrape | Refit with a new clip or bracket |
LED upgrades for halogen cars
Halogen housings can accept plug in LED bulbs, but results vary. The diode must sit at the precise point of the original filament, or the beam sprays light upward. A housing built for LEDs, or a projector unit, gives a crisp cut off. The trade offs are set out in our LED fog lamp page, and the projector fog lamp page explains lens units. An LED unit is dearer because it needs a driver circuit and a finned heat sink.
More for Altroz owners
Before you buy a housing, bring the old one if possible; clip positions differ between the halogen and LED generations. For other cars, browse the fog lamp hub, which includes the Nexon fog lamp. Two more Altroz pages you may need are wiper blade size and tyre size.
Questions owners ask
Does the tata altroz fog lamp come on every variant?
No. Of the current trims, just Accomplished S and Accomplished+ S get them. On the older car, XZ and the trims above it had them.
Is the Altroz fog lamp LED or halogen?
Today's car uses LED units. The earlier version ran halogen bulbs that also worked as cornering lights.
Can the LED inside be swapped on its own?
Usually not. The diodes are sealed in, so a dead lamp means a new housing.
What does the cornering function do?
Below a set speed, the lamp on the inside of your turn lights up and shows the kerb or ditch. Handy on unlit village lanes and steep basement ramps.
Can a Creative be given fog lamps?
Yes, using genuine lamps, bezels, a relay and a fuse. Check wiring and warranty with the dealer before work starts.
Why is there mist inside my fog lamp lens?
A hairline crack or a tired seal lets damp air in. Swap the housing early, before water corrodes the contacts.