System: Powertrain (P-Code)
SAE Standard (Generic)
Family: Cruise Distance Sensor Circuit
Code P2591: Cruise Control Front Distance Range Sensor Left
Diagnostic & Technical Explanation
Code P2591 (Cruise Control Front Distance Range Sensor Left) sets when the adaptive cruise control module reports a fault in one of its forward distance-ranging sensors (center, left, or right radar/lidar unit) used to measure the gap to the vehicle ahead. Causes are a sensor face obstructed by ice, mud, or a misaligned license-plate accessory, a bracket knocked out of alignment by a minor front-end impact, or a corroded connector behind the fascia.
First-listed procedure
Rank #1
Clean obstructed distance sensor face
Easy DIY
This is the first procedure in the authored
consideration order, not a measured cause likelihood. Execute it only when its prerequisites
and diagnostic findings support it. Its cost and labor estimates (where known), the step-by-step procedure and the
remaining 3 procedure(s) are in the licensed dataset. Ordering context.
Full family: Cruise Distance Sensor Circuit
What this page does not show
This page publishes the fault mechanism and the code index. The licensed dataset adds, for
every one of the 15,886 codes, the full authored repair set (56,729 procedures in total)
with the fields deliberately withheld here:
- Procedures 2..n after the first-listed procedure
- Aftermarket parts cost ranges in USD (
est_parts_cost_min/max_usd)
- Professional labor-hour estimates (
est_labor_hours)
- Step-by-step diagnostic and repair instructions
- Replacement-part mappings and catalog lookups
- 6,637 manufacturer-specific OEM codes across 32 makes ($149 tier)