2018 Chevrolet Silverado 1500
Problems, recalls and owner-reported issues
Power train is the leading concern among 519 owner complaints filed for this model year. This is the 11th highest complaint count among 19 Silverado 1500 model years with reports.
Of the 2018 reports, 10 involved a crash and 4 involved a fire. 11 people were injured and 1 person died.
What owners report most often
Recalls and investigations
Air bagsMay 21, 2026
General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, GMC Sierra 1500, 2019 Chevrolet Silverado 2500, Silverado 3500, GMC Sierra 2500, and Sierra 3500 vehicles. The left-side or right-side roof rail air bag (RRAB) inflator end cap may detach from the inflator or the inflator sidewall may rupture.
A detached end cap or inflator rupture can allow compressed gas to escape and project the end cap or fragments of the inflator into the vehicle, increasing the risk of injury.
Dealers will replace both RRAB modules, free of charge. Owner notification letters were mailed June 24, 2026. Owners may contact GMC customer service at 1-888-988-7267 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N262557310. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on May 21, 2026. This recall expands previous NHTSA recall number 26V166.
Campaign 26V325000 on NHTSA.gov
Air bagsMar 19, 2026
General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, GMC Sierra 1500, 2019 Chevrolet Silverado 2500, Silverado 3500, GMC Sierra 2500, and Sierra 3500 Crew Cab vehicles. The left or right-side roof rail air bag (RRAB) inflator end cap may detach from the inflator or the inflator sidewall may rupture.
A detached end cap or inflator rupture can allow compressed gas to escape and project the end cap or fragments of the inflator into the vehicle, increasing the risk of injury.
Dealers will replace the left and right-side RRAB modules, free of charge. Owner notification letters were mailed April 16, 2026. Owners may contact GMC customer service at 1-888-988-7267 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N262549710. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on March 19, 2026.
Campaign 26V166000 on NHTSA.gov
Air bagsJun 26, 2025
General Motors (GM) is recalling certain 2018 GMC Sierra 1500, 2019 Sierra 2500, 3500, Chevrolet Silverado 3500, and Chevrolet Silverado 2500 and 2018 Chevrolet Silverado 1500 Crew Cab vehicles. The left or right-side roof-rail air bag (RRAB) inflator end cap may detach from the inflator or the inflator sidewall may rupture.
A detached end cap or inflator rupture can allow compressed gas to escape and project the end cap or fragments of the inflator into the vehicle, increases the risk of injury or crash.
Dealers will replace the left and right side RRAB modules, free of charge. Owner notification letters were mailed July 23, 2025. Owners may contact GMC customer service at 1-888-988-7267 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N252513060.
Campaign 25V432000 on NHTSA.gov
Air bags, side/window, curtain, inflatorOct 10, 2024
General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, GMC Sierra 1500, 2018-2019 Chevrolet Silverado 2500, 3500, and GMC Sierra 2500, 3500 Crew Cab trucks. The left or right-side roof-rail air bag (RRAB) inflator end cap may detach from the inflator or the inflator sidewall may rupture.
A separated inflator end cap or inflator rupture can allow compressed gas to escape, resulting in the end cap or other components being propelled into the vehicle, increasing the risk of injury or crash.
Dealers will replace the left and right side RRAB modules, free of charge. Owner notification letters were mailed November 8, 2024. Owners may contact Chevrolet customer service at 1-800-222-1020, and GMC Customer Service at 888-988-7267. GM's number for this recall is N242474500.
Campaign 24V756000 on NHTSA.gov
Service brakes, hydraulic, power assist, vacuumOct 1, 2020
General Motors LLC (GM) is recalling certain 2018 Cadillac Escalade, Chevrolet Silverado 1500 and Tahoe, GMC Sierra 1500 and Yukon vehicles equipped with either a 5.3L or 6.2L V8 engine. The output of the mechanical vacuum pump can decrease over time, decreasing the amount of vacuum/power brake assist.
A decrease in brake assist can increase the brake pedal effort and distance required to stop the vehicle, increasing the risk of a crash.
GM will notify owners, and dealers will reprogram the Electronic Brake Control Module, free of charge. The recall began November 11, 2020. Owners may contact GM customer service at 1-866-522-9559, Cadillac customer service at 1-800-458-8006 or Chevrolet customer service at 1-800-630-2438. GM's number for this recall is N202300860.
Campaign 20V603000 on NHTSA.gov
Service brakes, hydraulic, antilock/traction control/electronic limited slip, wheel speed sensor/tone ringOct 24, 2019
General Motors LLC (GM) is recalling certain 2015-2020 Chevrolet Suburban, Tahoe, and GMC Yukon, and 2014-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles equipped with a 5.3-liter engine, a 3.08-ratio rear axle and four-wheel drive. If a wheel-speed sensor fails, while the vehicle is traveling between 41 and 60 mph in four-wheel or automatic mode, the Electronic-Brake Control Module (EBCM) software may activate the driveline-protection system.
Unintended activation of the driveline-protection system will cause unintended braking on the wheel on the opposite side of the failed sensor, causing the vehicle to pull to one side unexpectedly, increasing the risk of a crash.
GM will notify owners, and dealers will reprogram the EBCM, free of charge. The recall began December 11, 2019. Owners may contact Chevrolet customer service at 1-800-630-2438 or GMC customer service at 1-800-462-8782. GM's number for this recall is N192261050.
Campaign 19V761000 on NHTSA.gov
Service brakes, hydraulic, power assist, vacuumSep 6, 2019
General Motors LLC (GM) is recalling certain 2015-2017 Cadillac Escalade, 2014-2018 Chevrolet Silverado, GMC Sierra, 2015-2018 Chevrolet Suburban, Tahoe, GMC Yukon vehicles. The amount of vacuum created by the vacuum pump may decrease over time.
As the vacuum level drops, the brake assist decreases, increasing braking effort, extending the distance required to stop the vehicle, thereby increasing the risk of a crash.
GM will notify owners, and dealers will reprogram the Electronic Brake Control Module, free of charge. The recall began October 8, 2019. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-458-8006 or GMC customer service at 1-800-462-8782. GM's number for this recall is N192268490.
Campaign 19V645000 on NHTSA.gov
Representative owner complaints: power train
170 reports, newest first. Show all
Power train, Dec 17, 2019
I PURCHASED THIS TRUCK NEW IN NOVEMBER OF 2018. IT HAD 4 MILES ON IT. MY PREVIOUS TRUCK I OWNED FOR 10 YEARS. A 2000 GMC SIERRA, WHICH I MAINTAINED METICULOUSLY. I SOLD IT 452K MILES ON THE ORIGINAL ENGINE. SINCE I PURCHASE THE TRUCK THE TRANSMISSION HAS SHIFTED HARD ESPECIALLY AT LOW SPEEDS. I WON'T WRITE A REVIEW EXACTLY LIKE ALL THE OTHER TRANSMISSION REVIEWS, BUT THEY ARE SAME PROBLEMS I AM HAVING. GM NEEDS TO RECTIFY THIS ISSUE DUE TO THE NUMBER OF UNSATISFIED CUSTOMERS WITH A SUB PAR PRODUCT. I COULD HAVE BOUGHT ANY TRUCK I WANTED, AND I UNFORTUNATELY BOUGHT A SILVERADO WITH A TRANSMISSION THAT DOESN'T FUNCTION THE WAY A NEWER ONE SHOULD. ASIDE FROM THE MECHANICAL ISSUES IT CAUSES, IT IS EXTREMELY EMBARRASSING WITH PASSENGERS IN THE TRUCK. IT NEVER FAILS, THEY ALL SAY THE SAME EXACT THING...'WHAT WAS THAT?'...... GM STAND BEHIND YOUR PRODUCT LIKE WE STOOD BEHIND OUR HARD EARNED MONEY WHEN WE PAID YOU.
Suspension, Power train, Dec 15, 2019
SQUEAKING NOISE UNDER BOX. DEALER TOOK 2 MONTHS TO GET A REPLACEMENT LEAF SHACKLE FOR LEFT SIDE. IT DID STOP THE NOISE. MY TRANSMISSION HAS A HARD SHIFT IN GEARS WHEN TAKING OFF AND COMING TO A STOP. TRANSMISSION SEEMS TO HANG UP SHIFTING FROM LOW GEAR T A HIGHER GEAR AND DOES THE SAME WHEN COMING TO A STOP. SEEMS TO BE GETTING WORSE. NEW TRUCK, NOW HAS 21,000 MILES BUT WORST INVESTMENT I HAVE MADE SWITCHING FROM A FOREIGN TRUCK BACK TO MADE IN AMERICA. THIS HARD SHIFTING TAKES PLACE WHEN STARTING OFF OR COMING TO A STOP ON ANY HIGHWAY OR STREET.
Power train, Nov 1, 2019
TL* THE CONTACT OWNS A 2018 CHEVROLET SILVERADO 1500. WHILE DRIVING 55-60 MPH, THE VEHICLE FAILED TO ACCELERATE, LOST POWER, AND SPONTANEOUSLY MOVED. THERE WERE NO WARNING INDICATORS ILLUMINATED; HOWEVER, THE "ICY ROAD CONDITIONS DRIVE WITH CARE" MESSAGE WAS DISPLAYED. THE VEHICLE WAS TAKEN TO MAVERICK CHEVROLET (4801 E END BLVD S, MARSHALL, TX 75672, (903) 938-5111), BUT THE FAILURES COULD NOT BE DUPLICATED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS CONTACTED AND PROVIDED CASE NUMBER: 9-5588486485. THE FAILURE MILEAGE WAS 11,000.
Power train, Sep 12, 2019
AT APPROXIMATELY 15,000 MILES I WAS PARKED IN A YARD AND BLOCKED IN SO I BACKED UP ON A SMALL HILL AND THE TRUCK JERKED BADLY FOR ABOUT 15 FEET I THOUGHT IT WAS THE POSITIVE TRACTION TRYING TO CATCH ON THE GRASS BUT FURTHER INTO DRIVING THE TRUCK I NOTICED IT HAPPENING MORE AND MORE IN FORWARD OR REVERSE AND IN SHIFTING INTO GEARS ARE AT TIMES HARD. THE LAST INCIDENT I WAS TAKING OFF FROM A RED LIGHT TODAY AND AROUND 40 MPH IT HAD A JERK/ HARD SHIFT, MY TRUCK IS A DAILY DRIVER AND I HAVE 44,000 MILES ON IT CURRENTLY. I AM A HARDWORKING AMERICAN THAT PURCHASED THIS $40,000 TRUCK FOR DEPENDABILITY BECAUSE I DO A LOT OF DRIVING AND WOULD LOVE FOR SOME ONE TO PUT A STOP TO THIS NONSENSE THERE ARE ALREADY SO MANY COMPLAINTS ONLINE ABOUT THIS 8 SPEED TRANSMISSION JERKING AND SNATCHING AT RANDOM TIME CAN YOU ALL PLEASE MAKE GM RECALL THESE AND BE HELD ACCOUNTABLE FOR THE JUNK TRANSMISSIONS. THANK YOU, [XXX] REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *CC *TR
Power train, Jul 24, 2019
TL* THE CONTACT OWNS A 2018 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT THE VEHICLE WAS EXPERIENCING TRANSMISSION FAILURE. AFTER THE CONTACT WENT BACK AND FORTH WITH THE MANUFACTURER AND DEALER (BILL CRAMER CHEVROLET BUICK GMC, 2251 W 23RD ST, PANAMA CITY, FL 32405, (850) 250-1403), THEY SETTLED ON TRADING THE CONTACT'S 2015 SILVERADO FOR A 2018 SILVERADO WITH THE SAME TRANSMISSION FAILURE. THE CONTACT RESEARCHED THAT CHEVROLET WAS SERVED WITH A CLASS ACTION LAWSUIT FOR THE TRANSMISSION. THE MANUFACTURER WANTED THE CONTACT TO GO THROUGH THE SAME PROCESS FOR DIAGNOSING THE 2018 MODEL AS HE DID WITH THE 2015 MODEL. THE CONTACT WOULD HAVE TO MAKE AN APPOINTMENT WITH THE DEALER AND HAVE A SENIOR ADVISOR FROM THE MANUFACTURER CALL HIM BACK. THE CONTACT WANTED TO KNOW IF HE SHOULD FILE UNDER THE LEMON LAW WITH HIS STATE'S ATTORNEY GENERAL'S OFFICE. THE FAILURE MILEAGE WAS 0.
Power train, Jul 15, 2019
WHEN DRIVING ON HIGHWAY TRANSMISSION SURGES/PULSATES UNDER LIGHT ACCELERATION. WHEN ACCELERATING MOST OFTEN WHEN VEHICLE IS ALREADY IN MOTION THERE IS A EXTREME DELAY IN SHIFTING WHICH CAUSES A JERK AT LOWER SPEEDS OR AN DELAYED THEN HARD SHIFT AT SLIGHTLY HIGHER SPEEDS. MOST NOTICEABLE IN TRAFFIC.
Power train, Jun 29, 2019
TRANSMISSION CLUNKS WHEN SLOWING DOWN
Power train, Jun 24, 2019
BOUGHT THIS TRUCK BRAND NEW WITH 9 MILES ON IT. (PREVIOUSLY DROVE A RAM 1500). MY FIRST GM PRODUCT I'VE BOUGHT IN MY LIFE AND I'M DISGUSTED! I'M A VICTIM OF THE 'TRANSMISSION HARSH DOWNSHIFT SYNDROME'. SLOWING DOWN NORMALLY IS CLUNKY, NOTHING SMOOTH ABOUT THIS 'AUTOMATIC TRANSMISSION' 6 SPEED BTW. WHEN SLOWING DOWN ABRUPTLY (IN STOP N GO TRAFFIC), TRANSMISSION SLAMS INTO GEAR WHILE DOWNSHIFTING, FEELS LIKE I'M BEING REARENDED. TOOK IT TO THE DEALERSHIP A TOTAL OF 6 TIMES, THEY SAY 'OPERATING AS DESIGNED'....YEA RIGHT. MY RAM NEVER DID THIS...TALKED TO CORPORATE ON 2 SEPARATE OCCASIONS... 'THERE IS NOTHING WE CAN DO' IS WHAT THEY TELL ME. POOR DESIGN, HATE THE TRUCK, DISGUSTED WITH GM. I'M NOW MAKING DOUBLE PAYMENTS TO GET OUT FROM UNDER IT (BECAUSE I'M UPSIDE DOWN FROM BUYING BRAND NEW AND GM THINKS SO MUCH OF THEIR PRODUCT TO CHARGE AN ARM AND A LEG AND MY FIRST BORN) TO TRADE IT IN ON EITHER A FOREIGN CAR OR BACK TO RAM. GM DOESN'T CARE, RICH BILLIONAIRES CRAPPING ON THE MIDDLE CLASS, TOO MANY 'PENCIL PUSHERS' CREATING 'NEW DESIGNS' TO BE FUEL EFFICIENT AND IMPRESS THEIR BOSSES TO MAKE THEIR BONUS. NEWS FLASH....WE BUY TRUCKS NOT BE FUEL EFFICIENT, BUT TO BE MANLY AND HAUL THINGS AND GO OFF ROAD AND CARY A FEW PASSENGERS WHILE WE'RE AT IT!! SAVE YOURSELF THE HASSLE AND DONT BUY A GM PRODUCT.
Power train, Jun 3, 2019
THIS TRUCKS TRANSMISSION SHIFTS WHENEVER IT WANTS TO... I WAS DRIVING 45MPH AND COASTING TO A RED LIGHT WHEN IT DOWNSHIFTS HARD BUT WHEN THE LIGHT TURNED GREEN AGAIN AND I PRESSED THE ACCELERATOR I HAD NO TORQUE, LIKE I WAS IN 5TH GEAR AND SHOULD HAVE BEEN IN 2ND. I PRESSED A BIT HARDER AND IT DOWNSHIFTED HARD AGAIN AND WAS AT 5K RPMS! I THOUGHT IT HAD AN 8 SPEED TRANSMISSION, BUT IT SURE DOESNT SEEM LIKE IT. MY TRUCK WAS NEW AND ONLY HAS 5K MILES ON IT. UNACCEPTABLE
Power train, Apr 24, 2019
TRANSMISSION SLIPS, KNOCKS, AND GRINDS IN SOME INSTANCES. NO CHECK ENGINE LIGHT FROM THESE ISSUES BUT SPENT 30K + AND I HAVING THESE ISSUES AT 13,500 MILES.
Power train, Engine, Fuel/propulsion system, Apr 10, 2019
WHEN VEHILCE GOES FROM 6 CYLINDERS TO 4 CYLINDERS IT SHAKES REALLY BAD AND CAUSES HEADACHES AT ALL SPEEDS ! WORSE AT HIGHER SPEEDS
Power train, Apr 3, 2019
THE TRANSMISSION SLIPS OR SHUDDER, ALSO HAS FREE WHEELED WHEN GOING DOWN HILL AT SLOW SPEEDS, ALSO OCCURS IN REVERSE, USUALLY ABOUT 1 TO 2 CAR LENGTHS. HAVE RETURNED TO THE DEALER SEVERAL TIMES AND BEEN TOLD THAT GM DOES NOT HAVE A REMEDY. HAD THE SERVICE RECOMMENDATION OF A TRANSMISSION FLUED FLUSH DONE TWICE WITH DIFFERENT FLUID INSTALLED WITH NO CHANGE. HAS BEEN IN THE DEALERS SHOP FOR 3 WEEKS WITH GM LOOKING AT THE PROBLEM, NO SOLUTION IN SIGHT. NO CONFIDENCE THAT GM CAN FIX THE PROBLEM. THIS COULD DEVELOP INTO A SERIOUS SAFETY ISSUE.
Suspension, Power train, Other or unspecified, Mar 22, 2019
TAKATA RECALL. WHILE BACKING OUT OF MY DRIVEWAY I HEARD A LOUD CLUNKING SOUND COMING FROM THE UNDER CARRIAGE OF MY TRUCK. IT STOPPED FOR A SECOND AND THEN DID IT AGAIN THE CLUNKING SOUND GOT PROGRESSIVELY LOUDER. I NOTICED THE SOUND AT LOW SPEEDS, HIGH SPEEDS, GOING OVER MINOR BUMPS AND BIG BUMPS IN THE ROAD. ADDITIONALLY, WHILE GOING OVER BIG BUMPS I COULD HEAR WHAT SOUNDED LIKE FLEXING AND/OR GRINDING METAL COMING FROM THE REAR SUSPENSION. I STOPPED THE VEHICLE AND PROCEEDED TO ROCK IT BACK AND FORTH AND NOTICED THE KNOCKING/GRINDING SOUNDS COMING FROM THE UNDER CARRIAGE AND THE SUSPENSION. I GOT BACK IN THE VEHICLE AND DROVE OFF AND THE SOUNDS AGAIN STARTED. I HAVE INFANT TWINS THAT I WAS DRIVING IN MY VEHICLE AT THIS TIME AND I BECAME VERY CONCERNED FOR THEIR SAFETY AND MINE. I TOOK THE VEHICLE TO THE DEALERSHIP (SINCE IT IS BRAND NEW AND AT THE TIME ONLY HAD 2-3K MILES ON IT). THEY SAID "ITS A KNOWN PROBLEM IN CHEVROLET TRUCKS" THE PAPERWORK THEY GAVE ME AFTER THE "REPAIR" STATED" LUBRICATE REAR LEAF SPRINGS AND RE-TORQUE BOLTS" THIS INDICATES I HAD LOOSE SUSPENSION COMPONENTS. THE PROBLEM OCCURRED AGAIN AND I AGAIN TOOK THE TRUCK TO THE DEALERSHIP. THEY AGAIN STATED THE SAME REPAIR AND REFUSED TO PROVIDE ANY OTHER REMEDY AND ALSO REFUSED TO REPLACE THE LEAF SPRINGS. THE SAME PROBLEM HAPPENED AGAIN. AGAIN I TOOK THE TRUCK TO THE DEALERSHIP AND AGAIN THEY REFUSED TO PROVIDE ANY OTHER FORM OF SERVICE TO REMEDY THE PROBLEM. MY TRUCK HAS LESS THAN 8K MILES ON IT AND IT HAS BEEN IN THE SHOP ON 4 SEPARATE INSTANCES FOR THE SAME SUSPENSION PROBLEM. THE CLUNKING AND LOOSE SUSPENSION NOISES HAVE RETURNED AND I WILL BE TAKING THE TRUCK IN FOR THE 5TH TIME. THIS IS UNSAFE, AND MY WIFE REFUSES TO DRIVE IN MY TRUCK NOR ALLOW ME TO DRIVE OUR CHILDREN IN OUR TRUCK BECAUSE SHES CONCERNED FOR THEIR SAFETY!
Suspension, Power train, Other or unspecified, Mar 5, 2019
VEHICLE DEVELOPED A VIBRATION AT 80MPH WHICH FADES IN AND OUT. TIRES WERE ROAD FORCED BALANCED, AND ALIGNMENT WAS DONE. TRANSMISSION FLUID WAS CHANGED. THE SHACKING AT 80MPH CONTINUED. ON A 30 MILE COMMUTE AT 80MPH THE VIBRATION IS EXTREME 25% OF THE TIME (LIKE DRIVING OVER A RUMBLE STRIP), MODERATE ANOTHER 25% OF THE TIME, AND THE OTHER 50% THE VIBRATION IS NOT NOTICEABLE.
Power train, Nov 28, 2018
THE EIGHT SPEED AUTOMATIC TRANSMISSION STUTTERS AND ACTS LIKE IT DOESN'T KNOW WHAT GEAR TO GO INTO UNDER LIGHT TO NORMAL ACCELERATION. THIS OCCURS WHILE COLD AND DURING THE WARMING PERIOD, (NORMALLY UP TO AROUND 180 DEGREES), BUT TENDS TO RESOLVE AFTER THE ENGINE IS COMPLETELY WARMED UP. THIS TRANSMISSION PROBLEM IS CONTINUOUS AND HAPPENS EVERY TIME AFTER THE VEHICLE SITS ALL NIGHT OR IF IT HAS SIMPLY SIT FOR A FEW HOURS. IT IS VERY APPARENT, OTHER PASSENGERS ASK WHAT IS WRONG WITH THE VEHICLE WHEN THEY RIDE IN IT. I BOUGHT THE VEHICLE NEW, BUT WHEN I TOOK THE TEST DRIVE IT WAS ALREADY WARMED UP. THEREFORE I WAS UNAWARE OF THE ISSUES PRESENT. I WENT BACK TO THE SALESMAN TO DESCRIBE THE PROBLEM AND WAS INFORMED THIS HAPPENS WITH ALL THE 2018 EIGHT SPEED SILVERADO'S HE HAS DRIVEN ON THEIR LOT. I LOOKED ON THE INTERNET AND FOUND THESE TRANSMISSIONS HAVE A LEARN CYCLE, SO I DECIDED TO GIVE IT SOME TIME TO SEE IF WAS A LEARNING CURVE WITH THE COMPUTER. IT NEVER CLEARED UP. I LATER BROUGHT THE VEHICLE INTO THE DEALERSHIP FOR THE INITIAL SERVICE AND DESCRIBED WHAT HAD BEEN HAPPENING WITH IT TO THE SERVICE DEPARTMENT. I LEFT THE VEHICLE OVERNIGHT SO THE TECHNICIAN COULD DRIVE FIRST THING IN THE MORNING AND PERFORM AN SERVICES. THE NEXT DAY I WAS CALLED AND TOLD MY VEHICLE WAS READY. UPON ARRIVAL I WAS INFORMED THE TECHNICIAN WAS ABLE TO DUPLICATE THE PROBLEMS I DESCRIBED, BUT IT WAS NORMAL FOR THE EIGHT SPEED TRANSMISSION. HOWEVER, IT BECOMES WORSE TO BRING IT BACK IN FOR FURTHER DIAGNOSIS. I CALLED GM, THEY ALSO LOOKED INTO THE CASE FOR ABOUT A WEEK, THEN CALLED BACK AND STATED THAT IS NORMAL FOR THE TRANSMISSION. I BOUGHT THE VEHICLE NEW WITH ABOUT 2,500 MILES ON IT, (DEMO), AND HAVE HAD IT ONLY A FEW MONTHS. IT CURRENTLY HAS LESS THAN 10,000 MILES ON IT.
Power train, Oct 4, 2018
SEVERAL TIMES, WHILE DRIVING RIGHT AROUND 55 MPH, THE TRANSMISSION DOWNSHIFTED FOR NO REASON ON THRUWAY CONDITIONS. WHEN THIS HAPPENED, IT WAS ALMOST LIKE SLAMMING ON THE BRAKES QUICKLY. ON ALL OCCASIONS, MY BODY LURCHED FORWARD. IF SOMEONE WAS BEHIND ME, I PROBABLY WOULD HAVE BEEN REAR ENDED. ON ANOTHER OCCASION, WITH MY SON IN THE TRUCK, WE STOPPED AT A RED LIGHT AND THE TRANSMISSION CLUNKED SO VIOLENTLY, THAT WE BOTH THOUGHT WE WERE REAR ENDED AT FIRST. I DESCRIBED THE ISSUE TO MY GM SERVICE SHOP WHO SAID THAT THEY COULDN'T FIND AN ISSUE AND THAT THE CODES WERE ALL NORMAL. I WAS ADVISED THAT THE CLUNK AT THE RED LIGHT WAS COMMON, AS THE TRANSMISSION HAS TO RELIEVE PRESSURE. NO WAY IS THIS NORMAL! I GOT ON LINE TO REVIEW FORUMS AND IT APPEARS THIS IS A VERY PREVALENT ISSUE. YESTERDAY, I LOST MY TRANSMISSION COMPLETELY ON A THRUWAY. I HEARD A LOUD CLUNK AND THE RPMS SPIKED. I LEFT THE HIGHWAY ASAP BUT COULD NOT GO OVER 30 MPH OR THE RPMS WOULD JUST SPIKE WITHOUT MOTION RESPONSE. EXITING THE THRUWAY AT THIS SPEED WAS VERY DANGEROUS! EVEN WITH HAZARDS ON, DRIVERS SELDOM SLOW DOWN OR MOVE OVER, ESPECIALLY 18 WHEELERS. THESE TRANSMISSIONS ARE CLEARLY A SAFETY HAZARD.
Suspension, Power train, Other or unspecified, Aug 30, 2018
CONSTANT VIBRATION/SHAKE COMING FROM THE VEHICLE AT ANY SPEED ABOVE 65 MPH. THE TRUCK HAS BEEN LIKE THIS SINCE THE DAY IT LEFT THE DEALERSHIP. WHEN ON HIGHWAY AND VIBRATION IS FELT, PUTTING THE TRUCK IN NEUTRAL DOES NOT CHANGE THE VIBRATION, SLOWING DOWN MAKES IT SLIGHTLY WORSE, SPEEDING IT MAKES IT SLIGHTLY BETTER. FEELS LIKE THERE IS SOMETHING SERIOUSLY WRONG WITH THE GEOMETRY OF THE TRUCK MAKING IT UNSAFE TO DRIVE AT HIGHWAY SPEEDS. ROAD FORCE BALANCE WAS ALREADY DONE AND THE PROBLEM PERSISTS ON A BRAND NEW TRUCK.
Power train, Aug 27, 2018
IN MAY 2018 I PURCHASED A NEW CHEVY SILVERADO LT Z71 PU. I LIVE IN COLORADO AND WHEN I DRIVE THE TRUCK DOWN THE I-70 MOUNTAIN PASS THE TRANSMISSION IS DOWNSHIFTED BEYOND WHAT IO WOULD CALL A SAFE DOWN SHIFT. IM TRAVELING DOWN THE PASS, JUST COASTING, DOWN HILL ASSIST MODE IS OFF @ ROUGHLY 55 MPH THE TRANSMISSION DOWN SHIFT HARD. THE RPM GOES FROM ~1850 TO ~3800 RPM. THE ENGINE AND TRANSMISSION AND ENGINE BOTH MAKE A LOT OF NOISE WHEN THIS HAPPENS. I TRAVELED THE PASS ABOUT 8 TIME NOW AND THE TRUCK DOES THIS FUNNY SHIFT EVERYTIME AND I HAVE PICTURE SHOWING 4 EVENTS. I'VE TAKING THE DRIVE INTO THE DEALER AND SINCE THE COMPUTER DOESN'T LOG A ERROR CODE THE DEALER DOESN'T KNOW WHAT TO DO. THIS PAST WEEK THEY GAVE ANOTHER 2018 P/U WITH THE SAME TRANNY AND ENGINE AND THAT TRUCK DID NOT DO THE SAME DOWNSHIFT. I BELIEVE THERE IS SOMETHING WRONG WITH MY TRUCK AND ALSO IF THIS EVENT HAPPENED IN THE WINTER ON A SNOWY ROAD THE TRUCK WOULD SPIN OUT OF CONTROL AND CAUSE A ACCIDENT AND IS A HUGE SAFETY CONCERN. I ALSO FILED A COMPLAINT WITH GM BUT THEY ARE REALLY NOT HELP TO RESOLVE THIS PROBLEM. THE DEALER LOOKED AT THE TRUCK AGAIN TODAY, NO CODES RECORDED, THE RESET THE TRANSMISSION MEMORY TODAY TO TRY AND SATISFY MY NEED TO DO SOMETHING. I NOW WAITING TO HEAR BACK FROM THE DEALER ON THE NEXT STEPS. I WILL ALSO CALL GM AGAIN TO GIVE THEM THIS INFORMATION. I AM ATTACHING PICTURE THAT CLEARLY SHOW THIS PROBLEM. I ALSO GIVEN THE DEALER THE SAME PICTURES.
Power train, Aug 15, 2018
PARKED AND SHUT OFF, DISCONNECTED TRAILER. TRUCK ROLLED BACK WHILE IN PARK. I JUMPED OUT OF WAY AND TRIED TO OPEN DOOR TO STOP. DOOR KNOCKED ME DOWN AND CONTINUED BACKWARDS DRAGGING ME. FINAL STOP OVER EDGE OF POND AGAINST TREE STUMP. HAD TOWED TO DEALER FOR INSPECTION BY CHEVY ENGINEER. 2 WEEKS NO COMMUNICATION.
Steering, Power train, Electronic stability control (ESC), Feb 18, 2018
TRUCK STATIONARY. STARTED ENGINE. IMMEDIATELY MESSAGE SHOWED UP ON DASHBOARD INDICATING STEERING ASSIST LOW, DRIVE CAREFULLY. NO POWER STEERING. TRACTION CONTROL WARNING LIT. SHIFTED INTO REVERSE; TRUCK WOULD NOT MOVE AS IF IN NEUTRAL. TRUCK MOVE MOVE FORWARD IN DRIVE. SHUT OFF ENGINE AND RESTARTED TWICE. NO CHANGE. DID NOT ATTEMPT TO DRIVE.