P0299 on CHEVROLET MALIBU — Turbocharger/Supercharger A Underboost Condition

Q: "What does P0299 mean on a CHEVROLET MALIBU?"

"P0299 indicates: Turbocharger/Supercharger A Underboost Condition. This is a fuel injection code. 5 CHEVROLET MALIBU owners have reported this to NHTSA."

Q: "What are the most common causes of P0299 on CHEVROLET MALIBU?"

"Based on 5 NHTSA reports, the most commonly cited components are: Power Train,Engine,Fuel/Propulsion System, Power Train,Vehicle Speed Control,Fuel/Propulsion System, Power Train,Electrical System,Engine. These percentages are based on the component field in owner complaints."

Q: "Is P0299 serious on my CHEVROLET MALIBU?"

"Of 5 NHTSA reports for this code on CHEVROLET MALIBU, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic."

Q: "What should I do if my CHEVROLET MALIBU shows P0299?"

"1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare."

What P0299 Means on Your CHEVROLET MALIBU

P0299 is a diagnostic trouble code indicating: Turbocharger/Supercharger A Underboost Condition. This code relates to the fuel injection system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

5 CHEVROLET MALIBU owners have reported this issue to NHTSA across model years 2019-2022. Most reports come from the 2022, 2019 model years.

Real CHEVROLET MALIBU Owner Reports

Source: NHTSA Complaints Database

"My 2019 Chevrolet Malibu has severe safety defects involving the engine, powertrain, and speed control. The vehicle will sometimes accelerate on its own with my foot off the gas, and other times it loses all power while pulling into traffic. This creates an immediate risk of a crash."

— 2019 CHEVROLET MALIBU owner · POWER TRAIN,ENGINE,FUEL/PROPULSION SYSTEM · Filed 08/25/2025

"Vehicle through a "service engine" and lost partial power. The vehicle slowed considerably and was not able to accelerate as expected. Fortunately, this was rush hour traffic and it was slow. Normally, the traffic moves at 60 MPH plus or minus 5 MPH."

— 2020 CHEVROLET MALIBU owner · POWER TRAIN,VEHICLE SPEED CONTROL,FUEL/PROPULSION SYSTEM · Filed 02/16/2023

"Two months after purchasing my used Chevy 2022 Malibu my engine light came on and also a notification stating Engine Power Reduced and the car was not performing well. I went to advanced auto to get a diagnostic and the results that were generated was the code P0299 along with several other codes."

— 2022 CHEVROLET MALIBU owner · POWER TRAIN,ELECTRICAL SYSTEM,ENGINE · Filed 06/23/2025

"Check engine light came on. Took car to Autozone and O'Reilly's to be given the same P0299 code which is a failed turbocharger. Reduced engine power, car goes into limp mode."

— 2022 CHEVROLET MALIBU owner · ENGINE · Filed 08/10/2025

"Purchased the car February 14 2025 with 102,664 miles on it. About 2 weeks ago I was merging on a highway and it went into limp mode and I almost get rear-ended. It felt like it lost all power."

— 2022 CHEVROLET MALIBU owner · POWER TRAIN,ENGINE,FUEL/PROPULSION SYSTEM · Filed 12/02/2025

All reports filed by vehicle owners directly with the U.S. Department of Transportation.

📊 Complaint Trend by Model Year

1

'19

1

'20

3

'22

Common Causes on CHEVROLET MALIBU

Based on NHTSA complaint component analysis for this vehicle.

POWER TRAIN,ENGINE,FUEL/PROPULSION SYSTEM 40%

POWER TRAIN,VEHICLE SPEED CONTROL,FUEL/PROPULSION SYSTEM 20%

POWER TRAIN,ELECTRICAL SYSTEM,ENGINE 20%

ENGINE 20%

What To Do Next

1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50–$150) pinpoints the root cause before you spend money on parts.
3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.

Frequently Asked Questions

What does P0299 mean on a CHEVROLET MALIBU? ▾

P0299 indicates: Turbocharger/Supercharger A Underboost Condition. This is a fuel injection code. 5 CHEVROLET MALIBU owners have reported this to NHTSA.

What are the most common causes of P0299 on CHEVROLET MALIBU? ▾

Based on 5 NHTSA reports, the most commonly cited components are: Power Train,Engine,Fuel/Propulsion System, Power Train,Vehicle Speed Control,Fuel/Propulsion System, Power Train,Electrical System,Engine. These percentages are based on the component field in owner complaints.

Is P0299 serious on my CHEVROLET MALIBU? ▾

Of 5 NHTSA reports for this code on CHEVROLET MALIBU, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic.

What should I do if my CHEVROLET MALIBU shows P0299? ▾

1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare.