P2138 on Chevrolet vehicles
116 owner complaints filed with NHTSA about Chevrolet vehicles mention P2138 (Throttle/Pedal Position Sensor/Switch D/E 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 - reduced power mode is normal with this fault.
Symptoms, likely causes in order and realistic repair costs are on the main P2138 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 P2138
The number next to each year is how many NHTSA complaints for that car mention P2138. 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
“UNKNOWN While I'm driving my car will lose power and go into reduced engine power mode and slows me down to a crawl. I've almost been hit in the back many times for to this. The coffee is P2138”2016 Chevrolet Malibu · Dec 2025
“Reviving the p2138 code for throttle/accelerator sensor. Still getting code after replacing 3 accelerator peddles. Possible manufacture issue with wiring that water gets into connectors shorting out that system”2012 Chevrolet Sonic · Jul 2025
P2138 on other makes
Makes with enough NHTSA reports of P2138 for their own page.
Counts are NHTSA owner complaints whose text mentions P2138 - owner-reported and unverified. Always confirm with a diagnosis of your specific vehicle.