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What the 13492930 Clock Spring Does

The 13492930 clock spring is the spiral cable assembly behind your steering wheel. It keeps the airbag circuits, horn, and steering-wheel buttons connected while the wheel turns. When it fails, you get an airbag warning light, dead wheel controls, or a lost steering-angle signal.

It is built to GM OEM specification for the Chevy Malibu (2016–2023), GMC Terrain (2018–2022), Buick Envision, and Cadillac XT4/XT5. Full fitment and the complete cross-reference sit on the 13492930 clock spring product page.

• Integrated 0.1°-resolution Hall-effect steering angle sensor (SAS)
• Gold-plated beryllium-copper flat-ribbon contacts
• High-temperature PA66-GF35 thermoplastic housing
• Dedicated heated-steering-wheel circuit trace (RPO UVD/UVH)

2026 Compliance at a Glance

A replacement fitted in the 2026 model cycle must meet ISO 26262:2018 ASIL-B functional safety requirements, SAE J1939-76 CAN-FD transport-layer compliance, and updated FMVSS 208 occupant restraint integrity thresholds. The 13492930 satisfies all three.

It also runs on GM's Global B / Vehicle Intelligence Platform (VIP) architecture, the electrical backbone across all 2024–2026 GM nameplates. The SAS communicates over CAN-FD (ISO 11898-1:2024) at 2 Mbps and stays backward-compatible with legacy GMLAN.

Three Engineering Upgrades Inside the 2026-Spec Unit

Au/Ni-Plated BeCu Ribbon Contacts

The flat-flex circuit uses gold/nickel-plated beryllium-copper strips, 0.12 mm thick, with contact resistance below ≤15 mΩ across the full ±2.8-rotation sweep. The old tin-plated phosphor-bronze ribbon suffered oxidative fretting corrosion — the primary root cause of intermittent B0001-series DTCs in humid climates.

PA66-GF35 Housing

The PA66-GF35 resin (polyamide 66, 35% glass-fiber fill) replaces the previous-generation PA6-GF30 enclosure. Heat Deflection Temperature climbs from 210°C to 250°C — a 40°C higher continuous-service ceiling. That headroom matters for cabin-soak above 105°C in sunbelt states and GCC markets. UL94 V-0 flame-retardant classification is maintained.

Melexis MLX90371 SAS Chipset

The embedded MLX90371 Triaxis® magnetic position sensor gives stray-field-immune angular measurement at 0.1° resolution, output via SAE J1939-76 (2026)-compliant CAN-FD frames. It feeds GM's StabiliTrak 4.0 and Super Cruise 2.0 systems, which need ultra-low-latency steering-angle telemetry.

Specifications: 2026 vs. Legacy

Diagnostics: Verify Before You Replace

Airbag Light Plus B0001:1B

B0001:1B (Driver Frontal Stage 1 — Circuit Resistance Above Threshold) is the most common fault traced to ribbon degradation. On 2026-model-year diagnostics, the SRS module logs a freeze-frame snapshot of SAS angle when the intermittent open-circuit triggers, so you can match the fault to a wheel position.

First, verify pin 1-to-2 and pin 3-to-4 continuity through the full lock-to-lock sweep: spec is ≤20 mΩ steady, no open-circuit spikes. The 13492930 replacement unit ships with a factory-centered alignment pin — leave it in until the clock spring is fully seated on the column.

U0126:00 — Controls Dropping Out

U0126:00 (Lost Communication with Steering Angle Sensor Module) signals a CAN-bus timeout on the SAS node. Because the SAS sits inside the clock spring housing, a ribbon open on CAN-H or CAN-L drops the node off the bus intermittently — often a cold-morning failure that clears after warm-up. The gold-plated CAN-bus contact pads are rated ≤5 µV intermodulation distortion across the full temperature range.

On the scope: CAN-H swings 2.5–3.5V, CAN-L 1.5–2.5V, with clean edges at 500 kbps (legacy GMLAN) or 2 Mbps (CAN-FD on 2024+).

Horn Dead, No Airbag Light

The horn circuit runs on a dedicated ribbon trace, separate from the SRS squib circuits, so a horn-only failure can mean a localized break. Check fuse F7 (15A, underhood block) and relay K2 first. Then probe the horn-switch input at the BCM — expect 12V when pressed. Replace the unit if trace resistance exceeds 1 Ω.

After a Rack or Column Job

If the column was separated at the intermediate shaft coupler and the wheel free-spun — even briefly — the ribbon may have wound past its ±2.8-turn limit. One over-rotation can micro-fracture the traces; symptoms may take weeks to appear.

The Koeep 13492930 includes a centering tool to prevent exactly this failure mode during installation.

Fitment, OEM Cross-Reference, and Service Life

The 13492930 replaces five OEM numbers: GM 13492930, 13502622, 13592145, 84133221, 84333125. It is the 2026-model-year replacement for the GM E2XX and D2XX applications below.

• Chevy Malibu (2016–2023, final generation)
• GMC Terrain (2018–2022, pre-refresh)
• Buick Envision (2016–2023)
• Cadillac XT4/XT5 (2019–2023)

Projected service life runs 2026–2032, matching GM's published service-part support commitment through 2032. Fitment data and installation resources are on the 13492930 product specification page on Koeep.com.

DTC Ranges This Unit Resolves

• B0001:1B–B0005:4B — driver airbag stage 1 & 2 circuits
• B0012:0D–B0015:0D — driver squib deployment loops
• C0460:00–C0460:5A — steering angle sensor plausibility & calibration
• U0126:00 — SAS CAN timeout
• U0151:87 — SRS module communication lost
• U0131:00 — power steering control module lost communication with SAS

All DTCs verified against GM Service Information Document ID #5836712 (2026 Edition).

Certifications

The housing and ribbon assembly conforms to SAE J2464:2026 (electrical cycling endurance above 1,000,000 lock-to-lock cycles), ISO 26262:2018 ASIL-B for the SRS deployment loop, and ASTM D6779-23 for high-temperature polyamide aging resistance — together meeting GM's 2026 Global B VIP component-approval requirements.

Related Parts and Guides

No Heated Wheel?

Koeep also stocks the 22899138 clock spring without heated function for GM Malibu, Equinox, GMC Terrain, and Buick Regal — match the variant to your vehicle's equipment before you order.

Same Platforms, Other Systems

Servicing a Cruze, Cascada, Malibu, Terrain, or Cadillac? Koeep also carries the turbo solenoid valve for Buick Cascada, Cadillac, Chevy Cruze, Malibu, and GMC Terrain.

For climate-system work on related GM SUVs, see the complete guide to the A/C compressor for 2012–2014 Chevy Equinox and GMC Terrain 2.4L.

For everything else, browse the full Koeep auto and motorcycle parts catalog.

Order and Support

FAQ: 13492930 Clock Spring (2026)