P2135 on Chevrolet vehicles
55 owner complaints filed with NHTSA about Chevrolet vehicles mention P2135 (Throttle/Pedal Position Sensor/Switch A/B Voltage Correlation) - across 14 models. Below is where it shows up, by model and year.
Can you drive with it? Drive gently to a shop - this code usually triggers limp mode.
Symptoms, likely causes in order and realistic repair costs are on the main P2135 page - they do not differ much by brand. This page shows what is specific to Chevrolet: which models and years actually report it.
Chevrolet models reporting P2135
The number next to each year is how many NHTSA complaints for that car mention P2135. Owners rarely quote trouble codes when complaining, so real occurrence is many times higher - use these numbers to compare years, not as totals.
What Chevrolet owners report
“The vehicle is displaying error messages Reduced Engine Power, Service Stabilitrak, Service Traction Control. It also has the related service indicator lights for the Stabilitrak, the Traction Control, and the Check Engine Light is on. There is a service bulletin for this issue that only addresses the 2008-2011 model years, my vehicle is a 2012 and thus not included in the current bulletin and should be added to the covered vehicle list. #11-06-04-007B : Diagnosis and Repair - Malfunction Indicator Lamp (MIL) Illuminated, Reduced Power Message Displayed, DTC P2135 Set - (April 16, 2012)”2012 Chevrolet Avalanche · Sep 2022
“As I was driving home from downtown suddenly my truck lost power and I had to limp home ,friend checked truck and found trouble code p2135 reduced engine power and also said for me to check if there was a recall for this throttle body problem .”2003 Chevrolet Silverado 1500 · Jul 2020 · 275,000 mi
“The automotive trouble code p2135 throttle/pedal position sensor/switch a/b voltage correlation refers to a problem related to the throttle's ability to open and close properly. ... A throttle position sensor (tps) is situated opposite the throttle linkage connection on the throttle plate. Was driving down the road when an alarm went off on my dash saying a sensor was bad. Next thing the car said losing power to engine and my car started shaking and decelerating.”2010 Chevrolet Equinox · Feb 2020 · 80,000 mi
“I was leaving work, onto a busy street and the headlights flickered, the check engine icon appeared on the dash, along with engine power is reduced, service traction control & service stabili trak. My car slowed down to about 5 miles and I was almost hit. I reversed back into my company's lot. Someone scanned my car and the code was for p2135. Doing research, I found it was a previous recall for this issue but can't find any now.”2012 Chevrolet Cruze · Jan 2019 · 73,139 mi
Counts are NHTSA owner complaints whose text mentions P2135 - owner-reported and unverified. Always confirm with a diagnosis of your specific vehicle.