U0134

Lost Communication with Restraints System Sensor

Moderate severity

The airbag control module has stopped receiving data from a side impact sensor. Airbag warning lamp lights up; restraint deployment for side and curtain bags may be inhibited.

Common causes

Side impact sensor failed
A plausible cause — test and verify before replacing parts.
medium
Typical part cost: $170-770
Wiring damage in door or B-pillar
A plausible cause — test and verify before replacing parts.
medium
Typical part cost: $170-770
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First things to check

1Confirm the code with a scan tool and check for additional related codes.
2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.

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Related codes

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Frequently asked questions

What does U0134 mean?

U0134 means "Lost Communication with Restraints System Sensor (Side Sensor)". It is a generic OBD-II code that points to a fault in the network / communication.

What are the most common causes of U0134?

side impact sensor failed; wiring damage in door or b-pillar; gateway module routing can messages incorrectly — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.

Can I keep driving with this code?

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.

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