The Lemon IndexOne of the gas pedal position signals reads too low, so the car may go into reduced power.
Fix soon. Book a shop visit this week. Stop driving if the car slips, shakes, overheats or warns you.
Failing accelerator pedal sensor. Then: wiring fault.
Owners named P2122 in 32 complaints to the U.S. government, most often on the Chevrolet Impala.
Cars owners report it on
Complaints that name P2122, by model. Raw counts, not a failure rate: popular models get more complaints.
Years owners report it on most: 2009 Chevrolet Impala · 2011 Chevrolet Impala · 2015 Dodge Dart · 2017 Chevrolet Malibu · 2010 Chevrolet Impala · 2016 Chevrolet Malibu
The details
What P2122 means
One of the gas pedal position signals reads too low, so the car may go into reduced power.
Can I drive with P2122?
Fix soon. Book a shop visit this week. Stop driving if the car slips, shakes, overheats or warns you.
25% of the owner complaints that name P2122 also say the car warning lights and electrical faults. A complaint can describe more than one problem, so this doesn't prove the code caused it.
Common causes of P2122
- Failing accelerator pedal sensor
- Wiring fault
A shop should confirm the cause with a scan and tests before replacing parts.
What owners describe
- Warning lights and electrical faults: 25% of complaints
- Loses power or goes into limp mode: 22% of complaints
- Stalls or shuts off: 16% of complaints
- Brakes or ABS act up: 9% of complaints
Share of complaints naming the code whose text also mentions each problem.
Model years that report P2122 most
2009 Chevrolet Impala (3), 2011 Chevrolet Impala (2), 2015 Dodge Dart (2), 2017 Chevrolet Malibu (2), 2010 Chevrolet Impala (2), 2016 Chevrolet Malibu (2).
Related codes
P2121 P2127 P2128 P2119 P2118 P2112 P2111 P2110
Quick answers
What does P2122 mean?
Throttle/Pedal Position Sensor/Switch D Circuit Low. One of the gas pedal position signals reads too low, so the car may go into reduced power.
Can I drive with P2122?
Fix soon. Book a shop visit this week. Stop driving if the car slips, shakes, overheats or warns you.
What causes P2122?
Failing accelerator pedal sensor; Wiring fault.
Counts: NHTSA owner complaints whose text names P2122. A complaint is an owner's report, not a diagnosis. Meanings: the standard SAE J2012 definitions in our own words; manufacturer codes only where verified for that make. General information, not repair advice for your car.