P0780 on Lexus
Shift Malfunction (Shift Error)
P0780 on Lexus vehicles indicates shift malfunction (shift error). Au7o has documented this code across 1 Lexus model — most commonly on RX. P0780 is a general transmission code indicating the control module detected a shift malfunction — the transmission did not change gears correctly or did not achieve the commanded gear during a shift. It is often a 'parent' code that accompanies more specific solenoid or gear-ratio codes that pinpoint which shift failed. Symptoms can include harsh, slipping, delayed, or missed shifts, and possibly limp mode. It is generally drivable short-term but should be diagnosed promptly to prevent transmission damage. Typical repair costs on Lexus range from $2,800 to $5,000, depending on the specific model and root cause.
Common Causes of P0780
- •Low, dirty, or degraded transmission fluid
- •Faulty shift solenoid(s)
- •Worn internal clutches/bands or valve body wear
- •Wiring or connector faults in the transmission circuit
- •Stuck valve body passages from debris
- •Faulty transmission control module
- •Internal mechanical transmission wear
P0780 on Lexus by Model
Lexus RX(1 issue)
- U140E/U151E Automatic Transmission Failure from Burned Planetary Gearset and Delayed Engagement2000-2003
Early first-generation RX300 models are well known for premature automatic transmission failure, especially on AWD vehicles but also on FWD examples. Owners report delayed engagement into Drive or Reverse, harsh shifting, slipping on acceleration, and eventual loss of movement; teardown reports commonly cite burned clutches and damaged planetary gear components. The issue is widely documented in owner communities, repair databases, and NHTSA complaints, and is often attributed to a transmission that runs hot and is heavily stressed by vehicle weight.
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View P0780 across all makes →Frequently Asked Questions
What does P0780 mean on Lexus?▼
P0780 stands for "Shift Malfunction (Shift Error)." P0780 is a general transmission code indicating the control module detected a shift malfunction — the transmission did not change gears correctly or did not achieve the commanded gear during a shift. It is often a 'parent' code that accompanies more specific solenoid or gear-ratio codes that pinpoint which shift failed. Symptoms can include harsh, slipping, delayed, or missed shifts, and possibly limp mode. It is generally drivable short-term but should be diagnosed promptly to prevent transmission damage. On Lexus specifically, this code is documented across 1 model.
What causes P0780 on Lexus vehicles?▼
Common causes on Lexus: Low, dirty, or degraded transmission fluid, Faulty shift solenoid(s), Worn internal clutches/bands or valve body wear, Wiring or connector faults in the transmission circuit, Stuck valve body passages from debris. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0780 on a Lexus?▼
Repair costs on Lexus range from $2,800 to $5,000, depending on the specific model and root cause.
Which Lexus models have P0780 documented?▼
Au7o has documented P0780 on 1 Lexus model: RX.