P162C 2017 Chevrolet Silverado Code - Vehicle Speed Limiting/Warning Switch Circuit

P162C refers to a Vehicle Speed Limiting/Warning Switch Circuit issue, indicating a problem with the circuit responsible for monitoring or controlling the vehicle's speed warning or limiter system.

Symptoms may include the activation of the check engine light, restricted vehicle speed, or a malfunctioning speed limiter or warning system.

Common causes include a faulty speed limiter switch, damaged wiring or connectors in the circuit, or a malfunctioning control module.

While it may not cause immediate damage, ignoring the issue could lead to limited performance or potential safety concerns if the speed limiter system malfunctions.

Diagnosis typically involves using an OBDII scanner to confirm the code, inspecting the speed limiter switch, checking wiring and connectors for damage, and testing the control module.

Repairs may include replacing the speed limiter switch, repairing or replacing damaged wiring or connectors, or reprogramming/updating the control module if needed.

Repair costs vary depending on the issue but may range from $100 to $300 for parts and labor, depending on whether wiring repairs or component replacements are required.

A weak or dead battery can sometimes cause electronic circuit malfunctions, but it is not a common cause of this specific code.

The code itself typically doesn’t directly affect fuel efficiency, but performance issues tied to the speed limiter system could indirectly impact it.

You can clear the code with an OBDII scanner, but it is likely to return unless the underlying problem is resolved.