Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
BUICK
Reported code forms C0550
This Preliminary Information communication provides information to the technician about vehicles that have a Service AWD message and/or flashing Rear Drive Warning Instrument Panel Cluster indicator. Technician may find…
BUICK, CHEVROLET, GMC, PONTIAC, SATURN, SUZUKI
Reported code forms C0550
BUICK/CHEVROLET/GMC/PONTIAC/SATURN/SUZUKI: ALL WHEEL DRIVE SYSTEM INOPERATIVE AND DTC C0550 SET. VARIOUS CONCERNS MAY BE RELATED TO A LOW BATTERY SUCH AS BUT NOT EXCLUSIVE TO A NO CRANK OR SLOW ENGINE CRANK CONCERNS OR…
CHEVROLET, PONTIAC, SATURN
Reported code forms C0550
DIAGNOSTIC TIPS FOR POWER STEERING INOPERATIVE/STEERING WHEEL HARD TO TURN, POWER STEERING MESSAGE DISPLAYED ON DIC, DTC'S C0176, C0176, C0475, C0476, C0550, U2105, U2107 SET. *NJ UPDATED 2/17/10. *PE UPDATED 3/01/10.…
CHEVROLET, PONTIAC, SATURN
Reported code forms C0550
GENERAL MOTORS: ABS AND STABILITRAK LIGHTS ON DTC(S) U0121, C0550, C0186, C0196, C0710, C0252. THIS CONCERN CAN BE CAUSED BY WIRE HARNESS GOING TO EBCM, CHAFFING ON TRANSMISSION MOUNT OR METAL BRACKET. *PE
CHEVROLET, GMC
Reported code forms C0550
ANTILOCK BRAKE SYSTEM (ABS) LAMP ILLUMINATED, DIAGNOSTIC TROUBLE CODE (DTC) C0550) SET. *TT
PONTIAC
Reported code forms C0550
BRAKE SYSTEM LIGHT ON, ANTILOCK BRAKE SYSTEM (ABS) LIGHT ON, TRACTION CONTROL LIGHT ON, SERVICE BRAKE/ABS/TRACTION/STABILITY MESSAGE DISPLAYED, DTCS C0241, C0550, P0856 SET. *TT
ISUZU
Reported code forms C0550
SERVICE 4WD LIGHT ON 4WD INOPERATIVE HARSH ENGAGEMENT OF 4WD NO COMMUNICATION WITH TCCM DTC C0550 SET. *EH
CADILLAC, CHEVROLET, GMC
Reported code forms C0550
SERVICE MESSAGE DISPLAYED, DIAGNOSTIC TROUBLE CODE (DTC) C0550 SET (REPROGRAM EBCM). *MJ UPDATE. ORIGINAL NOT YET RECEIVED. *TT
CADILLAC, CHEVROLET, GMC
Reported code forms C0550
SERVICE STABILITY MESSAGE AND DIAGNOSTIC TROUBLE CODES (DTCS) C0455 OR C0550 SET. *TT GM ADMINISTRATIVE MESSATE. *TT
CHEVROLET, GMC
Reported code forms C0550
ABS TELLTALE ILLUMINATED, DIAGNOSTIC TROUBLE CODE C0550 STORED IN HISTORY.*MR
BUICK, CHEVROLET, GMC, OLDSMOBILE
Reported code forms C0550
SERVICE 4WD LIGHT ON, 4WD INOPERATIVE, HARSH ENGAGEMENT OF 4WD, NO COMMUNICATION WITH TRANSFER CASE CONTROL MODULE (TCCM), TCCM DIAGNOSTIC TROUBLE CODE (DTC) C0550 SET. *TT
CHEVROLET
Reported code forms C0550
2003 MODEL YEAR CK TRUCKS AND G-VANS WITH GREATER THAN 8600 GVW AND MANUAL HVAC CONTROLS MAY SET A DIAGNOSTIC TROUBLE CODE C0550 AND TURN ON THE ANTI-LOCK BRAKE SYSTEM (ABS) TELLTALE LAMP ON THE INSTRUMENT PANEL. *TT
CHEVROLET, GMC
Reported code forms C0550
ANTI-LOCK BRAKE SYSTEM (ABS) TELLTALE LIGHT BEING CONSTANTLY ILLUMINATED WITH A DIAGNOSTIC TROUBLE CODE C0550 BEING STORED. *TT *JB
CHEVROLET, GMC
Reported code forms C0550
ABS LIGHT ON WITH DTC C0550 ON MEDIUM DUTY MODELS C65 AND C75. *TT
CHEVROLET, GMC
Reported code forms C0550
ANTI-LOCK BRAKING SYSTEM (ABS) TELLTALE ILLUMINATED WITH DIAGNOSTIC TROUBLE CODE C0550. *TT
CADILLAC, CHEVROLET, GMC
Reported code forms C0550
INTERMITTENT SERVICE STABILITY MESSAGE DISPLAYED, HISTORY DIAGNOSTIC TROUBLE CODE C0550. *TT