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Your horn died, the airbag light is on, and the cruise button does nothing. Those are not three faults. They are one ribbon of cable behind the wheel: the clock spring, the spiral cable coiled inside the steering wheel base.

The clock spring for the 2019-2023 Cadillac XT4, 2018-2023 Chevrolet Traverse, 2019-2023 Chevrolet Blazer, 2016-2019 Chevrolet Cruze, 2017-2023 Buick Envision, 2017-2022 GMC Acadia, and 2018-2022 GMC Terrain is $58.74 and in stock.

What a clock spring actually does

The steering wheel turns, and the wiring loom in the column does not. The clock spring is the bridge: a flat ribbon cable wound in a spiral inside a shallow disc.

Turn the wheel and one end of the spiral pays out while the other takes up. Run past that winding budget and the ribbon pulls tight, then tears or shorts.

Four circuits cross that ribbon on the 2019-2023 Cadillac XT4, the 2018-2023 Chevrolet Traverse, and the other listed GM vehicles:

• The driver airbag squib, the circuit that fires the bag.
• The horn switch, which grounds through the wheel.
• The cruise control buttons on the wheel spokes.
• The audio, phone, and driver-information buttons.

The symptom matrix: any combination, in any order

The ribbon carries each circuit on its own trace, and one trace can snap while its neighbors stay intact. That is why the same part produces different complaints on different cars.

• Horn dead, or working only at certain wheel angles.
• Airbag warning light steady on the dash.
• Cruise that will not set, or drops out mid-drive.
• Wheel buttons dead, while the horn still works.

Any two of these together are the classic signature. A single one can still be a switch, a fuse, or a relay — which is why the next section comes before any ordering.

Check the cheap parts before you touch the wheel

An airbag light alone is not a clock spring diagnosis, and neither is a silent horn. Work this list in order, because the first two steps cost almost nothing:

1. Scan the SRS codes. A driver airbag circuit showing open or high resistance puts the clock spring at the top of the list.
2. Test the horn circuit. Check its fuse, then swap the relay with an identical one from the same box.
3. Wiggle the wheel while a helper presses the horn. A dead spot at one angle points at the ribbon.
4. Match the codes to the symptoms. Airbag codes plus a dead horn close the case.

Most parts stores will read SRS codes for free. Spending ten minutes there protects you from buying a $58.74 part you did not need. Column wiring and connector faults live in the starters, alternators, ECUs and wiring collection.

The numbers, side by side

Everything below comes from GM catalog listings and the aftermarket compatibility charts for this same part family. Match two things before ordering: the year range and the wheel type.

Why these fail: turns spent, centers lost, bags fired

Three failure patterns cover almost every dead ribbon we see:

• The winding budget gets used up. Years of parking with the wheel hard against the lock eat the spare turns, and one more full lock pulls the ribbon taut.
• The part was installed off-center. A spring fitted without its centering lock starts life crooked and spends its budget on one side.
• An accident fired the airbag. The deployment snatches the ribbon hard enough to tear traces, even at low speed.

Drivers often report a snap from the column at full lock, right before the horn and buttons quit. That sound is the ribbon letting go. It is why you never rotate the wheel hub with the spring out of the car.

Heated wheel or not: the part number changes

A heated steering wheel adds heater traces to the ribbon. That makes it a different part number on every brand. GM is no exception: the current GM spring for this family, 84532291, is catalogued for wheels without heating.

Kia and Hyundai prove the rule in the clearest way, because both versions of that job are stocked:

• The 2014-2016 Kia Cadenza and Optima clock spring with heated wheel, 93490-3R325 is $44.43 — a heated-wheel car must have this version.
• The 2008-2014 Hyundai Genesis clock spring without heated wheel, 93490-3M000 is $23.63 — same column, different ribbon.

The substitution only runs one way. A heated version fits a non-heated car and leaves the heater circuit unused. A non-heated spring in a heated-wheel car leaves the rim cold and lights a fault.

So before ordering for your 2019-2023 Cadillac XT4 or 2017-2023 Buick Envision, check whether the rim heats. Look for heated-wheel buttons, or ask us with your VIN.

The safe replacement order

The ribbon feeds the airbag, so this job starts with the battery, not with tools. Follow the sequence exactly:

1. Set the wheel straight and mark hub-to-column alignment with tape.
2. Disconnect the battery negative and strap it away from the post.
3. Wait. Manuals allow two minutes for the reserve capacitor to drain; experienced shops wait five to ten.
4. Remove the airbag module, then the wheel, then the column covers.
5. Transfer any centering lock to the new disc before you lift it in.
6. Install the new spring locked at center, bolt the wheel on, then release the lock.
7. Reconnect the battery, clear the codes, and test horn, cruise, and buttons through both locks.

Two warnings are worth writing down. The airbag can deploy from its reserve capacitor after the battery is off, which is why the wait is not optional. And a centered install decides whether the new spring lasts.

What fits, and what does not

• Fits the seven GM vehicles in the table above, on wheels without heating.
• Does not fit heated wheels, and does not replace XT5 2020-2023 or Enclave 2018-2021 springs.
• Does not fix a horn by itself if the fuse, relay, or horn is the culprit.

Everything steering-related we stock sits in the steering and suspension collection. For the wider code-matching picture on GM springs, our 2026 GM clock spring compliance guide covers the same family.

Frequently asked questions