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HOMESERVICE MANUALSCHEVROLET1998SUBURBAN K2500, 7.4 J, PART TIMEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 346 (ENGINE CONTROL SYSTEM SELF-DIAGNOSTICS - 3.8L)PROGRAMMINGOIL LIFE SYSTEMGRAND PRIX
1998 Chevrolet Suburban K2500, 7.4 J, Part Time

Grand Prix

1998 Chevrolet Suburban K2500, 7.4 J, Part TimeSECTION Grand Prix
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2003 Pontiac Grand Prix, 2003 Pontiac Bonneville, 2003 Chevrolet Monte Carlo, 2003 Chevrolet Impala, and 2003 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.

Without Trip Computer

  1. Turn the ignition to RUN, with the engine OFF.
  2. Fully press and release the accelerator pedal 3 times within 5 seconds.
  3. If the CHANGE OIL SOON light flashes, the system is resetting.
  4. Turn the key to OFF after the light has finished flashing, then start engine.
  5. If the CHANGE OIL SOON light comes back on, the engine oil life system did not reset. Repeat the procedure.

With Trip Computer

  1. Press the MODE button until the light appears next to OIL LIFE.
  2. Press and hold the RESET button for 3 seconds. The oil life percentage should change to 10 percent.
RENDER: 1.0x

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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.