There are 10 owner-reported speed control & cruise complaints for the 2003 Chevrolet Suburbanin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
VEHICLE WAS COMING TO A STOP FROM A SPEED OF APPROXIMATELY 30MPH AND BRAKES FAILED SUDDENLY TO BRING VEHICLE TO A STOP A NORMAL RATE. DRIVER NEEDED TO SWERVE OFF ROAD TO AVOID COLLISION. VEHICLE CRASHED INTO SIDE CURVE. NOT WARNING SIGN OR LIGHT WAS LIT BEFORE INCIDENT. CLEAR YELLOWISH FLUID DRAINED FROM UNDERNEATH VEHICLE NEAR DRIVER'S DOOR. *TR
DRIVING ON CRUISE CONTROL AT 45 MPH. THEN, WE TURN OFF CRUISE CONTROL, BUT SPEEDOMETER STAYS AT 45MPH. OCCURS ONCE OR TWICE A MONTH. HAVE BEEN STOPPED BY THE POLICE ONCE FOR DRIVING TO SLOW. CORRECTED BY TURNING CAR ON AND OFF THREE OR FOUR TIMES IN A ROW. *TR
2003 CHEVY Z71 SUB SPEED ODOMETER IS NOT WORKING CORRECTLY. WILL WORK ONE DAY AND BE OFF BY MORE THAN 80MPH THE SAME DAY. GM WILL NOT DO ANYTHING TO ASSIST AND CAN LEAD TO ACCIDENT AS WELL AS TICKETS AS WE HAVE NO IDEA OF WHAT SPEED WE ARE TRAVELING. *TR
MY 2003 CHEVY SUBURBAN SPEED ODOMETER IS MALFUNCTIONING. WHEN AT A COMPLETE STOP IT READS 30 MPH AND WHEN DRIVING ON THE HIGHWAY IT WILL GO TO 120MPH AND SOMETIMES PAST THAT. VEHICLE JUST HIT 50000 MILES. THIS IS VERY DANGEROUS SAFEY PROBLEM THAT CAN LEAD TO ACCIDENTS AND SPEEDING TICKETS CAUSED BY A KNOWN MALFUNCTION IN GM VEHICLES. THE COST OF REPAIRING THIS PROBLEM IS VERY EXPENSIVE AND SHOULD NOT BE AN OUT OF POCKET EXPENSE.*CN
I HAVE A 2003 CHEVREOLET SUBURBAN THAT HAS A FAULTY, RACING SPEEDOMETER. I JUST SAW A NEWS REPORT ON CBS TELEVISION ABOUT THIS PROBLEM. MY DEALER TOLD ME IT WAS JUST MY CAR. NOW I SEE MANY CARS MAY HAVE THE SAME PROBLEM. THE SPEEDOMETER RANDOMLY RACES TO A VERY HIGH AND INCORRECT SPEED.*JB
SPEEDOMETER FAILED INTERMITTENTLY FOR A PERIOD OF ABOUT SIX MONTHS THEN STOPPED WORKING ALL TOGETHER. I AM TOLD BY DEALER AND OTHER SUBURBAN OWNERS THAT THIS IS A COMMON OCCURRENCE. *AK
SPEEDOMETER QUITS REGISTERING SPEED OF VEHICLE AT TIMES, THE ODOMETER CONTINUES TO WORK. NEXT TIME DRIVING VEHICLE SPEEDOMETER WORKS. DEALER SAID THIS IS A VERY COMMON OCCURRENCE AND EVENTUALLY THE SPEEDOMETER WILL QUIT AND I WILL HAVE TO BUY A NEW ONE. I DO FEEL THAT A NON WORKING SPEEDOMETER IS A SAFETY ISSUE. *JB
SPEEDODOMETER ON MY 2003 CHEVROLET SUBURBAN IS FAILING. I HAVE INQUIRED THE DEALER ABOUT A RECALL, REPAIR, WITHOUT SUCCESS. I HAVE READ THAT THE SPEED ODOMETER HAS BEEN FAILING FOR MANY GM OWNERS BUT GM WILL NOT RECALL THE DEFECTIVE ODOMETER.*AK
2003 CHEVROLET SUBURBAN- RACING SPEEDOMETER- BOUNCING FROM 0 TO 120, NOW STUCK PAST 120. NO WAY TO DETERMINE SPEED. MANY REPORTS OF THIS PROBLEM-- BUT NO RECALL AS OF YET- BIG BUCKS TO REPLACE UNIT. *AK
DT*: THE CONTACT STATED THE SPEEDOMETER AND TACHOMETER STOPPED WORKING WITHOUT PRIOR WARNING. THE CONTACT TOOK THE VEHICLE TO A DEALER. ALTHOUGH THE DEALER DID NOT INSPECT OR REPAIR THE VEHICLE THE MECHANIC DETERMINED THE SPEEDOMETER CLUSTER GEAR FAILED AND WOULD NEED TO BE REPLACED. *AK UPDATED 01/25/06. *JB
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026