P2135 on CHEVROLET MALIBU — Throttle/Pedal Position Sensor/Switch A/B Voltage Correlation

Q: "What does P2135 mean on a CHEVROLET MALIBU?"

"P2135 indicates: Throttle/Pedal Position Sensor/Switch A/B Voltage Correlation. This is a powertrain code. 18 CHEVROLET MALIBU owners have reported this to NHTSA."

Q: "What are the most common causes of P2135 on CHEVROLET MALIBU?"

"Based on 18 NHTSA reports, the most commonly cited components are: Vehicle Speed Control, Electronic Stability Control (Esc), Electronic Stability Control (Esc),Engine. These percentages are based on the component field in owner complaints."

Q: "Is P2135 serious on my CHEVROLET MALIBU?"

"Of 18 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 P2135?"

"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 P2135 Means on Your CHEVROLET MALIBU

P2135 is a diagnostic trouble code indicating: Throttle/Pedal Position Sensor/Switch A/B Voltage Correlation. This code relates to the powertrain system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

18 CHEVROLET MALIBU owners have reported this issue to NHTSA across model years 2008-2017. Most reports come from the 2011, 2010 model years.

Real CHEVROLET MALIBU Owner Reports

Source: NHTSA Complaints Database

"Check engine light comes on.engine power reduced 99 %.sometimes engine dies while driving 40-55 mph.engine code p2135 is displayed on my code reader. the problem goes away after cycling the ignition switch several times.car is un-reliable.this problem can cause you to crash the car."

— 2008 CHEVROLET MALIBU owner · POWER TRAIN,SERVICE BRAKES,ENGINE · Filed 12/31/2015

"My 2008 chevy malibu 2lt is experiencing issues where it basically loses power to the engine. the code that came up is p2135 and the messages were service traction/service esc/engine power reduced. once the engine is shut down, it won't start until the codes are cleared."

— 2008 CHEVROLET MALIBU owner · TRACTION CONTROL SYSTEM,ENGINE · Filed 04/26/2014

"While driving at various speeds, the service esc, traction control, and reduced engine power warning indicator illuminated on the instrument panel. car also misfired. taken to independent auto repair shop, throttle body replaced. codes found at garage po300, p2135."

— 2010 CHEVROLET MALIBU owner · ENGINE,FUEL/PROPULSION SYSTEM · Filed 02/12/2016

"While driving my service engine light came on, then "service esc", "reduced engine power", "esc off". the car then had reduced power and had to have a code reset. the code was p2135. one day it happened 4 times during my 45 minute drive home."

— 2010 CHEVROLET MALIBU owner · ELECTRONIC STABILITY CONTROL (ESC) · Filed 09/17/2014

"Driving the vehicle at 70 mph on the highway when i received the following messages in the dic: "service esc" "service traction control" and "eng reduced pwr." vehicle would not accelerate past 60 mph, and that was with pedal all the way to the floor. when i had to stop, the engine shook."

— 2010 CHEVROLET MALIBU owner · ELECTRONIC STABILITY CONTROL (ESC),ENGINE · Filed 12/08/2014

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

📊 Complaint Trend by Model Year

2

'08

6

'10

8

'11

1

'12

1

'17

Common Causes on CHEVROLET MALIBU

Based on NHTSA complaint component analysis for this vehicle.

VEHICLE SPEED CONTROL 16.7%

ELECTRONIC STABILITY CONTROL (ESC) 11.1%

ELECTRONIC STABILITY CONTROL (ESC),ENGINE 11.1%

ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL,ENGINE 11.1%

POWER TRAIN,SERVICE BRAKES,ENGINE 5.6%

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 P2135 mean on a CHEVROLET MALIBU? ▾

P2135 indicates: Throttle/Pedal Position Sensor/Switch A/B Voltage Correlation. This is a powertrain code. 18 CHEVROLET MALIBU owners have reported this to NHTSA.

What are the most common causes of P2135 on CHEVROLET MALIBU? ▾

Based on 18 NHTSA reports, the most commonly cited components are: Vehicle Speed Control, Electronic Stability Control (Esc), Electronic Stability Control (Esc),Engine. These percentages are based on the component field in owner complaints.

Is P2135 serious on my CHEVROLET MALIBU? ▾

Of 18 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 P2135? ▾

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.