Diagnostic Code Index

2008 Pontiac Grand Prix BaseSECTION Diagnostic Code Index
WARNING: This page is about a different car, the 2008 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX

DTC Description
DTC C2111-C2114  C2111: Tire Pressure Sensor 1 in Shipping Mode
C2112: Tire Pressure Sensor 2 in Shipping Mode
C2113: Tire Pressure Sensor 3 in Shipping Mode
C2114: Tire Pressure Sensor 4 in Shipping Mode
DTC C2121-C2124  C2121: Tire Pressure Sensor 1 Signal Missing - Main Set
C2122: Tire Pressure Sensor 2 Signal Missing - Main Set
C2123: Tire Pressure Sensor 3 Signal Missing - Main Set
C2124: Tire Pressure Sensor 4 Signal Missing - Main Set
DTC C2126  C2126: Tire Pressure Sensor ID Not Received
DTC C2141-C2144  C2141: Tire Pressure Sensor 1 Performance
C2142: Tire Pressure Sensor 2 Performance
C2143: Tire Pressure Sensor 3 Performance
C2144: Tire Pressure Sensor 4 Performance
DTC C2165-C2168  C2165: Tire Pressure Sensor 1 Tire Overtemperature
C2166: Tire Pressure Sensor 2 Tire Overtemperature
C2167: Tire Pressure Sensor 3 Tire Overtemperature
C2168: Tire Pressure Sensor 4 Tire Overtemperature
DTC C2171  C2171: Low Tire Pressure Sensors Not Learned - Main
DTC C2173  C2173: Engine Speed Signal or Vehicle Speed Signal Performance
DTC C2176  C2176: Tire Pressure Sensors Antenna Performance
DTC C2177  C2177: Initialization Not Complete
DTC C2181-C2184  C2181: Tire Pressure Sensor 1 Transmitter Identification
C2182: Tire Pressure Sensor 2 Transmitter Identification
C2183: Tire Pressure Sensor 3 Transmitter Identification
C2184: Tire Pressure Sensor 4 Transmitter Identification
DTC C2191  C2191: Vehicle Speed Signal Performance
DTC C2194  C2194: Engine Speed Signal Performance
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.