The Lemon Index

Check engine light · Engine codes

U0170: Lost Communication With Restraint System Sensor "A"

Network · GenericU0170
Fix soon
What it means

The other computers in the car stopped hearing from an airbag system sensor.

How serious

Fix soon. Book a shop visit this week. Stop driving if the car slips, shakes, overheats or warns you.

Where a shop starts

Wiring or connector fault on the data network. Then: power or ground problem at an airbag system sensor; failed an airbag system sensor.

Owners named U0170 in 17 complaints to the U.S. government, most often on the Pontiac.

The details

What U0170 means

The other computers in the car stopped hearing from an airbag system sensor. Features that depend on it can stop working, and several warning lights often come on together.

Can I drive with U0170?

Fix soon. Book a shop visit this week. Stop driving if the car slips, shakes, overheats or warns you.

Common causes of U0170
  • Wiring or connector fault on the data network
  • Power or ground problem at an airbag system sensor
  • Failed an airbag system sensor
  • Weak battery

A shop should confirm the cause with a scan and tests before replacing parts.

Related codes

U0164 U0184 U0159 U0155 U0151 U0146 U0141 U0140

Quick answers

What does U0170 mean?

Lost Communication With Restraint System Sensor "A". The other computers in the car stopped hearing from an airbag system sensor. Features that depend on it can stop working, and several warning lights often come on together.

Can I drive with U0170?

Fix soon. Book a shop visit this week. Stop driving if the car slips, shakes, overheats or warns you.

What causes U0170?

Wiring or connector fault on the data network; Power or ground problem at an airbag system sensor; Failed an airbag system sensor; Weak battery.

Counts: NHTSA owner complaints whose text names U0170. A complaint is an owner's report, not a diagnosis. Meanings: the standard SAE J2012 definitions in our own words; manufacturer codes only where verified for that make. General information, not repair advice for your car.

Updated · Free to use with credit: Source: The Lemon Index (lemonindex.com). Get the data

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