P0299 — Turbocharger / supercharger underboost.

Code P0299 is a standard OBD-II diagnostic trouble code: Turbocharger / supercharger underboost.

In ProblemsByVin's analysis of the NHTSA owner-complaint record, owners cite P0299 across 53 vehicle failure patterns. Diagnostic codes in complaints are reported by owners and are unverified — they point to where this code shows up, not a confirmed diagnosis. Open a page below for the full pattern (symptoms, mileage, repair costs owners cite).

Vehicles where owners report P0299 53 patterns

2022 Chevrolet Malibu

powertrain — Turbo Underboost—Limp Mode and Loss of Power

2022 Chevrolet Equinox

engine — Charge Air Cooler Moisture Accumulation / Air Induction System Failure

2022 Chevrolet Malibu

engine — Turbocharger failure and boost-control loss

2022 Ford Escape

engine — Fuel Injector Defect / Insufficient Torque

2021 Chevrolet Trailblazer

engine — Turbocharger Failure

2020 Buick Encore GX

powertrain — Loss of engine power and turbo boost failure

2020 Chevrolet Malibu

powertrain — Intermittent Power Loss and Hesitation

2020 Chevrolet Equinox

engine — Check Engine Light / Diagnostic Code Issues

2020 GMC Terrain

engine — Sudden engine loss of power/engine shut-off while driving

2020 Honda Accord

engine — Turbocharger failure / underboost

2020 RAM 1500

engine — Turbo boost control loss under towing load

2019 Buick Encore

engine — Turbocharger failures

2019 Chevrolet Equinox

engine — Charge Air Cooler Tube Disconnect from Throttle Body

2019 Chevrolet Malibu

powertrain — Transmission loss of power and delayed acceleration

2019 Chevrolet Trax

electrical — Turbocharger boost failure

2019 Chevrolet Trax

engine — Turbocharger failure and premature wear

2019 RAM 2500

engine — CP4 High-Pressure Fuel Pump Failure

2018 Alfa Romeo Stelvio

electrical — Fuel Pump / Fuel Delivery Module Failure (LOMP / Loss of Motive Power)

2018 Chevrolet Equinox

powertrain — Engine Power Loss / Limp Mode (P0299 Turbocharger Underboost)

2018 Chevrolet Equinox

engine — Turbocharger assembly failure and boost loss

2018 Ford Ecosport

powertrain — Oil pump belt/tensioner failure leading to engine seizure

2018 Ford Escape

brakes — Complete brake failure during driving

2018 Honda Accord

engine — Premature head gasket failure with coolant intrusion

2017 Buick Encore

engine — Turbocharger failure

2017 Chevrolet Cruze

engine — Turbocharger failure and boost control issues

2017 Chevrolet Trax

engine — Turbocharger underpower code (P0299) with valve cover issues

2017 Ford Focus

engine — Engine failure / Catastrophic engine damage

2017 Honda CR-V

brakes — Complete brake system failure or severe loss of brake response

2017 Honda Civic

powertrain — Transmission failure and CVT issues

2017 Hyundai Tucson

engine — Engine knocking, ticking, and abnormal noises

2017 RAM 1500

engine — Fuel system hesitation and acceleration loss under recall

2016 Buick Encore

engine — Turbocharger failure and underboost condition

2016 Chevrolet Cruze

powertrain — Water pump and thermostat failure with internal coolant leaks

2016 Chevrolet Trax

powertrain — Turbocharger underboost / wastegate actuator linkage

2016 Ford Fusion

engine — Coolant intrusion into cylinders

2015 Buick Encore

engine — Turbocharger failure

2015 Chevrolet Trax

powertrain — Turbocharger and coolant system leaks

2015 RAM 1500

engine — Crankshaft Position Sensor Tone Wheel Failure

2015 RAM Promaster City

powertrain — Unintended neutral shift, limp mode, and power loss

2015 RAM 1500

cruise control — Limp mode / severe power loss (EcoDiesel engines)

2014 Chevrolet Cruze

engine — Turbocharger Failure

2014 Volkswagen Jetta

engine — Intercooler icing and hydrolock (diesel TDI)

2014 Volkswagen Passat

powertrain — Glow Plug Circuit and Combustion Sensor Failures

2013 Chevrolet Cruze

engine — Turbocharger failure / cracking

2013 Dodge Dart

powertrain — Turbo Engine Surging / Hesitation / Power Loss

2013 Dodge Dart

engine — Turbocharger underboost and limp mode (1.4L MultiAir Turbo)

2013 Hyundai Santa Fe

powertrain — Excessive oil consumption and engine knocking/misfires

2012 Chevrolet Sonic

powertrain — Loss of power while driving

2012 Ford Edge

engine — Sudden loss of engine power / stalling while driving

2009 Volkswagen Jetta

engine — Engine Stall / Loss of Power While Driving

2008 Audi A4

powertrain — Fuel System Malfunction—Persistent Sensor and Pump Faults

2006 Ford F-250

electrical — Instrument cluster failure

2006 Volkswagen Passat

fuel system — Fuel pump failure causing engine stall

Codes are pulled from what owners wrote in their NHTSA filings — they're allegations, not a shop diagnosis. Always confirm with a live scan. Browse all diagnostic codes →