What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer communications
2Original wording in English
BUICK, CHEVROLET, GMC, PONTIAC, SATURN
Reported code forms P0842
SATURN/CHEVROLET/GMC/BUICK/PONTIAC: SES LIGHT AND/OR NO REVERSE; A SLIP/FLARE OR HARSH SHIFTS IN DRIVE RANGE 3RD AND/OR 5TH GEAR. CODES P0776 CLUTCH PRESSURE CONTROL (PC) SOLENOID 2 - STUCK OFF AND P0842 TRANSMISSION…
BUICK, CADILLAC, CHEVROLET, GMC, PONTIAC, SATURN
Reported code forms P0842
6T70, 6T75, 6L50, 6L80, OR 6L90. AUTOMATIC TRANSMISSION - INFORMATION ON TRANSMISSION FLUID PRESSURE (TFP) SWITCH CHECK FOR FALSE DTC'S P0842, P0843, P0872, P0873, P0877, P0878, P0989, OR P0990. *KB
Check vehicle applicability
3A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.