2019 Chevrolet Silverado 1500
Problems, recalls and owner-reported issues
Engine is the leading concern among 1,082 owner complaints filed for this model year. This is the 3rd highest complaint count among 19 Silverado 1500 model years with reports.
Of the 2019 reports, 27 involved a crash and 8 involved a fire. 15 people were injured.
What owners report most often
Recalls and investigations
Tires, temporary/emergency spare tireDec 16, 2021
General Motors (GM) is recalling certain 2019-2021 GMC Sierra 1500 and Silverado 1500 vehicles equipped with certain accessory road tires and a 17" spare tire. The 17" spare tire provided with the vehicle is not compatible for use with the accessory wheels, which can cause the anti-lock brake system (ABS) to not function properly under certain conditions.
An ABS system that does not function properly can increase the risk of a crash.
Dealers will provide a new 17" spare tire and wheel assembly that is compatible with the accessory wheels, free of charge. Dealers will also apply a new spare tire information label, and provide owners with an owner's manual insert clarifying which spare tire to use with the accessory road tires and with the 17" original tires. Owner notification letters were mailed February 7, 2022. Owners may contact GM customer service at 1-800-462-8782 or GMC customer service at 1-800-462-8782. GM's number for this recall is N212346510.
Campaign 21V985000 on NHTSA.gov
TiresJun 3, 2021
General Motors, LLC (GM) is recalling certain 2019 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles. The affected tires were cured for too long during production.
Over cured tires may develop a break in the sidewall resulting in sudden air loss or a belt edge separation which could lead to a tread/belt loss. Either condition can cause a loss of vehicle control, increasing the risk of a crash.
Dealers inspect and replace the tires as necessary, free of charge, free of charge. Owner notification letters were mailed on June 25, 2021. Owners may contact Chevrolet customer service at 1-800-222-1020 and GMC customer service at 1-800-462-8782. GM's number for this recall is N212336230.
Campaign 21V423000 on NHTSA.gov
TiresFeb 25, 2021
General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT4, XT5, Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, Traverse, GMC Yukon, Yukon XL, 2018-2021 Chevrolet Express, GMC Savana, 2019-2020 Chevrolet Blazer, Silverado 1500, GMC Acadia, Sierra 1500, and certain Continental tires sold to the aftermarket for various model year 2018-2021 vehicles. The affected tires were cured for too long during production.
Over cured tires may develop a break in the sidewall resulting in sudden air loss or a belt edge separation which could lead to a tread/belt loss. Either condition can cause a loss of vehicle control, increasing the risk of a crash.
GM will notify owners, and dealers will inspect the tires, replacing them as necessary, free of charge. The recall began March 22, 2021. Owners may contact GMC customer service at 1-888-988-7267, Buick customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N212329050.
Campaign 21V115000 on NHTSA.gov
Seat beltsDec 17, 2020
General Motors, LLC (GM) is recalling certain 2019-2021 Chevrolet Silverado 1500 and GMC Sierra 1500, 2021 Chevrolet Suburban and Tahoe and GMC Yukon XL and 2020-2021 Chevrolet Silverado 2500 and 3500 and GMC Sierra 2500 and 3500 vehicles. The seat belt brackets may not be secured to the seat frame in the front-row center seating position.
If a seat-belt bracket is not secured, the seat belt may not properly restrain an occupant in the front-row center seat position, increasing the risk of injury in a crash.
GM will notify owners, and dealers will inspect left-side and right-side front-row center seat-belt bracket attachments and reassemble it correctly as necessary, free of charge. The recall began January 26, 2021. Owners may contact GMC customer service at 1-800-462-8782, Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N202314670.
Campaign 20V792000 on NHTSA.gov
Power train, driveline, driveshaftOct 22, 2020
General Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500 and 2020 Chevrolet Silverado 2500 trucks. One of the driveshaft joints may not have been properly welded, causing the driveshaft to separate while the vehicle is moving.
If the driveshaft separates, there may be a loss of propulsion, increasing the risk of crash.
GM will notify owners, and dealers will replace the driveshaft, free of charge. The recall is expected to begin December 2020. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-888-988-7267. GM's number for this recall is N202314870.
Campaign 20V650000 on NHTSA.gov
Service brakes, hydraulic, power assistJan 30, 2020
General Motors LLC (GM) is recalling certain 2019 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles. These vehicles received updated software for the Electronic Brake Control Module (EBCM). This software has an error, and as a result, the vehicle's electronic brake assist may be disabled. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 126, "Electronic Stability Control" and 135, "Light Vehicle Brake Systems."
A loss of electronic brake assist can increase the risk of a crash.
GM will notify owners, and dealers will reprogram the EBCM, free of charge. The recall began February 24, 2020. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-888-988-7267. GM's number for this recall is N192268091.
Campaign 20V055000 on NHTSA.gov
Service brakes, hydraulic, antilock/traction control/electronic limited slip, abs warning lightDec 12, 2019
General Motors LLC (GM) is recalling certain 2019 Chevrolet Silverado 1500, Cadillac CT6, and GMC Sierra 1500 vehicles. Due to an Electronic Brake Control Module (EBCM) software error, the vehicle's Electronic Stability Control (ESC) and Antilock Brake System (ABS) may become disabled. Furthermore, if this specific error occurs, the vehicle's diagnostics will not illuminate the instrument cluster ESC and ABS malfunction warning lights. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 126, "Electronic Stability Control" and 135, "Light Vehicle Brake Systems."
If the driver operates the vehicle unaware that ESC and ABS are not functioning, there is an increased risk of a crash.
GM will notify owners, and dealers will reprogram the EBCM, free of charge. The recall began February 4, 2020. Owners may contact Chevrolet customer service at 1-800-222-1020, Cadillac customer service at 1-800-333-4223, or GMC customer service at 1-888-988-7267. GM's number for this recall is N192268090.
Campaign 19V889000 on NHTSA.gov
Electrical system, 12v/24v/48v battery, cablesDec 12, 2019
General Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks. The battery positive (B+) cable rings may have been manufactured with excessive glue, potentially causing an intermittent electrical connection between the B+ cable and alternator.
An intermittent electrical connection between the B+ battery cable and the alternator could cause the vehicle to stall, increasing the risk of a crash. The intermittent connection could also lead to electrical arcing, which could generate sufficient heat to damage surrounding material, increasing the risk of a fire.
GM will notify owners, and dealers will inspect for the presence of glue or other contamination at the B+ cable attachment to the alternator and clean the connection and reattach the B+ cable connection, as necessary. If arcing has damaged the cable, nut, or alternator, the dealer will replace the damaged components. All services will be performed free of charge. GM issued owners an interim notification on February 4, 2020. GM issued second notice and the recall began March 9, 2019. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-888-988-7267. GM's number for this recall is N192273510.
Campaign 19V888000 on NHTSA.gov
Seat belts, pretensionerNov 14, 2019
General Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500, and 2020 Silverado 2500, Silverado 3500, Sierra 2500, and Sierra 3500 vehicles equipped with carpet floor covering. When the front seat belt pretensioners deploy, hot gas may vent through an opening in the pretensioner bracket, possibly igniting the carpet.
A vehicle fire could result if materials ignite inside the vehicle.
GM will notify owners, and dealers will close off the opening in the pretensioner bracket, free of charge. The recall began December 13, 2019. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-888-988-7267. GM's number for this recall is N192270600.
Campaign 19V814000 on NHTSA.gov
Air bags, frontal, passenger side, inflator moduleDec 6, 2018
General Motors LLC (GM) is recalling certain 2019 Chevrolet Silverado 1500 Crew Cab and GMC Sierra 1500 Crew Cab vehicles. The passenger-side frontal air bag module may have been damaged during assembly, possibly resulting in the air bag not inflating properly in the event of a crash.
In the event of a crash, an air bag that does not inflate properly can increase the risk of injury.
GM will notify owners, and dealers will replace the passenger side air bag module, free of charge. The recall began on December 18, 2018. Owners may contact Chevrolet customer service at 1-800-222-1020 and GMC customer service at 1-800-462-8782. GM's number for this recall is N182198820.
Campaign 18V868000 on NHTSA.gov
Representative owner complaints: other or unspecified
109 reports, newest first. Show all
Power train, Other or unspecified, Engine, May 2, 2025
Truck rev high without much acceleration Clunking noise when accelerating Hard shifting Shuttering
Other or unspecified, Mar 30, 2025
Hard shifting, mainly first to second gear. Shuddering at high speeds, and hard downshifting.
Other or unspecified, Engine, Fuel/propulsion system, Mar 13, 2025
CRANK NO START WITH A P129F SET DUE TO INTERNAL SPEED FAILURE BETWEEN FUEL PUMP AND FUEL PUMP CONTROL MODULE. UPDATED DESIGN MODULE AND PUMP MUST BE REPLACED TOGETHER SE APAGO DEJANDONOS EN MEDIO DE 2 CARRILES EN UNA CURVA Y NO FUNCIONABAN LAS INTERMITENTES PASABAN MUCHOS AUTOS Y TRAILERS ESTABAMOS MI ESPOSO MI HIJO DE [XXX] Y YO GRACIAS A DIOS NO SE NOS ESTAMPO UN TRAILER MI HIJO ES [XXX] Y DE EL MIEDO NO HA PODIDO DORMIR BIEN NI YO TAMPOCO AUN TIEMBLO ERA DOMINGO Y NO PODIAMOS CONSEGUIR UNA GRUA Y LLAME A CHEVROLET DIJERON QUE LLEGARIAN EN 16 MINUTOS Y TARDARON MAS DE 1 HORA LA LLEVARON A MI CASA Y EL LUNES LA LLEVARON A LA AGENCIA DE CHEVROLET MUCHAS CAMIONETAS HAN TENIDO ESA FALLA NO SE POR QUE NO HAY AVISOS EN ESTA PAGINA ME QUIEREN COBRAR MUCHO Y LA CAMIONETA SOLO TIENE 7921 MILLAS NO HUBO MENSAJES DE ADVERTENCI NI LUCES HASTA DESPUES DE QUE SE DETUVO LA CAMIONETA Y YA NO QUIZO AVANZAR SE APAGABA INMEDIATAMENTE INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Other or unspecified, Feb 24, 2025
Was at a red light after a very short drive, as soon as the light turned green I let off break hit gas and felt a huge kick that felt as if I was rear ended. I let off the gas and another big kick happened. Check engine light came on and dashboard read “Service ECS and Service parking break”. Truck would not accelerate and I was stuck in the middle of a very busy intersection. Turned truck off turned back on and it allowed me to at least accelerate and get out of the intersection but the truck was revving at high RPMs and not going faster than 20mph. I’m assuming truck went into limp mode. Got truck to mechanic where they said all the codes were TRANSMISSION CODES. Truck was then towed to Monterey transmissions in Stuart, FL where they stated it was confirmed a new transmission would be need. They explained that there is a recall for 462 thousand 2019 chevy Silverado 1500s. But my VIN is not associated with this claim. Why? When I have the same valve body that has been religiously failing on all other 2019 Chevy Silverado’s. All this occurred on [XXX]. Vehicle will be available for inspection as it is undriveable. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Other or unspecified, Dec 26, 2024
I had known transmission problems resulting in $5974 repairs. I consider this an extreme safety issue. Had the transmission failed in heavy traffic, it would present a dangerous situation for both me and others near me. This is a known issue by GM, nothing is being done to correct this problem.
Other or unspecified, Dec 3, 2024
Pulling an enclosed trailer with my 2019 Chevy PU. Stopped at a gas station and discovered the tailgate had dropped down while driving. Making the turn into the gas station with the trailer in tow creased the tailgate considerably by the jack on the trailer. Thankfully nothing was noticed missing from the truck bed that was needed for our trip. Very unhappy for the faulty tailgate opening while traveling. Request contact for repair as I see there are recalls on this matter but not my truck when indeed it did happen.
Other or unspecified, Aug 2, 2024
The rear view camera mounted in the tailgate of my truck displays a distorted and fuzzy display on the video display, when in reverse gear. When I select reverse gear and it's at night, the light at the top center of the tailgate, intended to illuminate the tow hitch, is so bright that it bleaches any view from the screen. I'd suggest the light be on a separate switch to be used only for actually hitching to a trailer. The display shows the guiding marks where the truck will go and it is bleached from view also. This is a hazard because the view is so blurry, nothing of value is displayed. I mentioned this to the dealer's service manager, where I purchased this truck, used, and he said that the camera would have to be replace or at least removed from the tailgate and cleaned and resealed. I noticedd this imperfection upon delivery as a used truck and since it's out of the warranty period i will wait to have it repaired. Thank you..
Other or unspecified, Service brakes, Engine, Jul 10, 2024
IT'S BEEN 3 TIMES I HAVE HAD A RECALL ON THE BRAKES AND THEY CHARGED ME FOR THE DIAGNOSIS THAT RETURNED p25a2 AND THEY WANT TO CHARGE ME FOR FIXING SOMETHING THAT WENT WRONG SINCE MANUFACTURING MY TRUCK ONLY HAS 6,000 MILES IT SKIDS A LOUD SOUND IS HEARD DOWN AND WHEN I BRAKE FOR A LITTLE MORE AND I CRASH 3 TIMES
Other or unspecified, Engine, Jun 17, 2024
I have 2019 chevy silverado 1500 that only has 38000 miles and bought it at 34000 miles. I drive it 20 miles if that to work and back only and use my wifes cars another chevy on weekends family car. One morning i turned it on and it stated no oil pressure to turn car off. I did as it stated lifted the hood and can tell the oil cooler line/hose came off due to the latch bracket not holding. Thank God i wasnt on the highway in dfw traffic could have caused an accident. Low and behold many hundreds of complaints with the same vehicle and issue has been filed with Gm motors. While in alaska and canada the exact same issue is recalled but not the united states of America! Please help as i cannot replace an engine in this time today with a family over an issue many hundreds of chevy owners are having. Its an obvious recall and part thats not up to the law or standards.
Other or unspecified, May 24, 2024
Sliding Back window of 2019 and newer GMC pickups are experiencing issues with defects on the plastic connecting to the back window. They are cracking and allowing water to enter vehicle and down to carpet possibly creating mold. They have fixed mine one time already and the fix lasted for a little over 2 years. and just my truck was in the shop again for over a week and it’s the same issue . Advising they will not cover it under extended warranty . The is a health concern and GMC knows about it and will not do anything to rectify the problem
Electrical system, Other or unspecified, Service brakes, Apr 12, 2024, crash
This 2019 Silverado pickup truck lurched forward on 2 different occasions. The first time it lurched forward, it was in a parking lot and no damage was done to the truck or any other vehicle. The second time our 2019 Silverado pickup truck lurched forward I was turning around at a farm. The truck hit a wooden building on the farm and did damage to it and our truck did damage the front end of the truck to the tune of $3,474.00. If someone was in front of the truck, they would have been killed or seriously injured. We have been very careful with the truck ever since. We could pull it into our garage and it could lurch forward and go through the garage wall.
Other or unspecified, Mar 27, 2024
Rear defrost is causing a loud hissing/arcing sound. After leaving the defrost on for a short period of time, I could see smoke forming near the bottom left corner of the window. This is concerning because defrost is turned on automatically when the truck is started and it is cold outside. I see that many other people have reported the same issue on their 2019 Silverado 1500 when reading in the GM forum. In many reported cases, it will either catch on fire or completely shatter the window. I was told by my dealer that since my truck is outside of warranty, they would not cover the repair. This should be a safety recall covered outside of warranty period. GM has yet to announce a safety recall on this issue.
Other or unspecified, Mar 14, 2024
My rear window was leaking and repaired by the dealer in 2020 . Then in November of 2023 I noticed the water again in the cab I noticed stains and mold in the cab the vehicle now had 42,000 miles the dealer said the truck was out of warranty so I would have to pay out of pocket or make an insurance claim . This is a health and safety concern if the window sealant can crack it can potentially pop out if the windows are open at higher speeds due to the pressure in the cab. Also General Motors does not want to acknowledge or accept full responsibility for the window or the mold and water damage!
Other or unspecified, Mar 6, 2024
Truck developed leak in rear window area, which will create mold in the vehicle, making it unsafe to be in. Took it into Chevrolet dealer and told it was third brake light leak a known issue with a TSB. First told will need window replaced also, but then they changed to the reseal window (see quote attached). They "repaired" the leak, then same day it was still leaking. I returned to dealer (same day); now told I need to replace window as per a TSB! Another $1K cost to me. GM knows about this problem but is placing the cost on the customer. These trucks are not safe to be in, if mold develops.
Other or unspecified, Mar 5, 2024
The rear sliding window structure is faulty and this is well documented through complaints. The structure surrounding the rear sliding window is not strong enough to stand normal wear and tear. This is documented in [XXX] . The supplier produced poor quality material. Was it the suppliers fault or GM's specifications? The water leakage can cause damage to the rear seat and floor board which can cause mold and mildew to form, causing a health issue. This happened to this vehicle. Because of this known problem which GM gets away with the consumer has to foot the bill. The dealership has to send this truck out to get fixed and the cost is around $900. Though the mold and mildew is not enough for a recall since it is not a safety issue. It does become a safety issue when the water interacts with the electrical system and causes it to short out and cause smoke. This happened to my son's 2019 Silverado Z71. The safety issue is when a child is strapped in their car seat in the back seat and this happens. Which happened in this instance. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Other or unspecified, Feb 5, 2024
On Monday, [XXX] my husband was driving his 2019 Chevy Trail Boss (VIN [XXX] ) home from work and a warning light came on the dash indicating “low oil pressure, turn engine off.” He pulled off the road immediately to turn the truck off and then realized that there was oil pouring out from the truck and which had covered the entire underside and sides of the vehicle. After having the truck towed to the local dealership we were notified that the issue was related to the oil cooler lines detaching causing the oil leak. The recommended fix was replacement of the lines and fresh oil. We proceeded with the service and thankfully there was no apparent damage to the engine at this time. The dealership acknowledged that this was a common problem with this truck. We paid $1,307.13 for the completion of this work, completed by Urka Auto Center in Ludington, MI. Unfortunately, after doing some research it has come to our attention that the detachment of the oil cooler lines is a very common problem amongst 2019 Chevy and GMC trucks and have located service bulletin (GMC TSB [XXX]) that identifies this as an issue for a select group of vehicles. It is very concerning that this has never been identified as a recall and it’s obvious that this issue affects many more trucks than those identified in the service bulletin. Similar issues also noted in Customer Satisfaction Program documents ([XXX] and [XXX]). We live in Michigan and, as happens in Michigan during winter, we’ve been experiencing snow and cold temps. It seems that in our research the colder temps put these oil cooler lines at an even greater risk of failure. The detachment of the oil coolant lines seems to be much more wide-spread than what has been acknowledged in the referenced documents. This parts failure has potential to severely damage the vehicle's engine. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Other or unspecified, Jan 11, 2024
I was driving for an hour when the truck was dinging and it told me to turn off engine no pressure with oil coolant I pulled into a customer’s driveway and all the oil in the truck was all over the customer’s blacktop called Chevy they knew nothing about problem and said no recall and was not covered with 42000 miles on truck had it towed and repaired by my local mechanic who also questioned Chevy and got the same response
Other or unspecified, Nov 18, 2023, crash
Back up camera fails, and a collision follows. The camera keeps flickering and going black all the time. I ask the dealer and was told that if the factory warranty expired, nothing they can do. Also the infotainment system is failing, turn off then on, or freeze if temperature is cold. Same answer from dealer
Other or unspecified, Fuel/propulsion system, Oct 16, 2023
MY PURGE PUMP HAS GONE OUT 3 TIMES. I DO NOT OVERFILL MY TANK. THEY HAVE ALSO STATED IT IS DUE TO NO LID ON THE GAS TANK BUT THIS TRUCK IS DESIGNED WITHOUT A LID FOR THE TANK. THE CATALYTIC CONVERTER HAS NOW GONE BAD PER THE DEALERSHIP. THE TRUCK ONLY HAS 121000 MILES ON IT. I SHOULD NOT BE HAVING THESE KINDS OF PROBLEMS. I WANTED TO REPORT THESE SINCE THE TRUCK IS NOT THAT OLD SO THIS MAY BE AN ISSUE WITH OTHERS. SINCE I PURCHASED THE TRUCK IT HAS JUMPED AT TAKE OFF AND NO ONE CAN EXPLAIN THIS. THE DEALER SHIP ALSO GIVE DIFFERENT ANSWERS FOR THINGS AND DOES NOT SEEM TO KNOW WHAT COULD BE WRONG.
Other or unspecified, Aug 11, 2023
Not really a safety concern but the backup camera worked for about a year, then got foggy during wet weather and completely useless in winter here in Anchorage, it was still foggy the following summer and then it went completely off and the following message appeared on the screen: service rear vision system. Of course it’s out of warranty now. I just think they should last more than a year or two in fact I’m still paying for my truck and a good feature that is really unimpressive. Thanks for your time.
Other or unspecified, May 27, 2023
Truck does not recognize shifter position of park, will not turn off properly. No wat to tell if transmission is safely in park. Does this about 50 percent of the time. This has to be a safety issue. A dealer in Arizona says that on model of the Chevy Silverado it is a regular issue. I would think this should be a safety recall item.
Other or unspecified, May 14, 2023
Water leaking from the rear windshield into the vehicle. Large amounts of water into the housing for the rear seatbelts, which is concerning for damage to the seatbelts. There are concerns for mold and electrical issues as well. This is a known issue from Chevrolet and needs to be addressed.
Other or unspecified, Apr 20, 2023
The rear windows leak because of a faulty window seal. This is a widespread issue that some people don’t even notice until truck is out of warranty and dealers want $700-$1000 to fix. The issues causes water to enter the cab, mine had water going into seatbelt areas that could damage mechanisms inside and cause seatbelts to not operate properly in a crash. As well as cause mold and other issues inside the cab. The company knows of the issue and has made a bulletin for how to fix. This needs to be a recall as it is affecting most trucks. Customers should not have to pay for this fix. This is a factory defect in materials used. Whatever they used to seal the window, cracks and alloys water in. I don’t know how long this has been leaking but probably well before warranty ran out I just now noticed it because truck usually stayed dry. Only noticed because the headliner was wet and water was dripping from seatbelt area. I only have 26000 miles on a 2019
Electrical system, Other or unspecified, Feb 1, 2023
The touch screen controller is constantly going haywire. It’s very distracting while operating the vehicle. The screen will switch from maps that you are following by itself to the radio, home page or just freeze. The radio can’t be controlled, the Wi-Fi and satellite systems switch on and off at random. There’s many complaints listed on the internet about the issue. GM wants $675 to replace the system on a 4 year old vehicle.
Electrical system, Other or unspecified, Service brakes, Dec 27, 2022
2019 Chevy Silverado RST turbo. 46K miles. Truck would feel like it skipped a gear a few times for a few months; I chalked it up to needing a new air filter. Had that and the oil changed. Ran normal for about 3 weeks. Check engine light came on and began flashing, service esc and service parking brake lights came on. Truck would vibrate while at an idle. Truck would not get up and go and when it go to 30mph, it would violently shake and stutter. Changed the 4 spark plugs, with number 4 being the worst, then 1, then 2 and 3. Mind you, the truck only has 46K miles. Got them replaced, removed the negative battery terminal to reset the codes and now the heat isn't working.