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2018 Gmc SIERRA 1500 Power Train Problems, Complaints and Defects

Issue ID	1620024
Internal NHTSA #	11281162
Manufacurer	General Motors LLC
Brand	GMC
Model	SIERRA 1500
Model Year	2018
File date	08/11/19
Component	POWER TRAIN
Product type code	VEHICLE
Description of the problem	I experienced failure of the transmission to sift up or down on several occasions between 11/01/2019 and 11/11/2019. On 11/08/2019 i was monitoring the transmission temperature, and when the transmission temp reached 164 deg, the transmission would stop shifting properly at 25 to 30 mph, and the trans temp would jump to 192+ deg. Transmission seemed to slip and the vehicle would not accelerate. Rpms jumped to 3k-4k rms but speed would not change up or down. Contacted the dealership and made an appointment for 11/11. On 11/11 i drove the to the dealer 10 miles away. I monitored the trans temp as i drove, and no shifting issues until just before reaching the dealership (trans temp had reached 154 deg). I road with the dealer rep for a test drive and he was able to duplicate the problem at 30-mph and trans temp quickly rose again to over 192-deg. Dealer rep tried to use the manual shift option but even using that he was unable to get the transmisson to shift properly ans engine rpms exceeded 5k and stayed there until the transmission shifted into gear. Dealer rep stated that is not good during the test drive. Arriving back at the service department the dealer rep that test drove the vehicle told the service dep amanger the vehicle was not safe to drive. I was told the transmission would need to be torn down to figure out what the problem was and it might be after the first of the year before they would have it fixed due alack of parts due to the recent strike, and a bag log of vehicles already waiting repair parts. Other complaints that seem to match mine are nhtsa ids: 11193281, 11230193, 11221668, and 11205523. Issue is a serious safety issue if the vehicle cannot accelerate safely to merge with traffic.
Vehicle Mileage at Failure	6003
Number of Occurences
Source of the issue	PORTABLE SAFETY COMPLAINT FORM (PDF)
City and State	TYRONE, GA
VIN pattern	3GTU2MEC7JGXXXXXX
Was vehicle invloved in a crash?	N
Was vehicle involved in a fire?	N
Was incedent reported to police?	N
Was medical attention required?	N
Was part original equipment?
No. of injured persons	0
No. of fatalities	0
Date of purchase	12/09/24
Was original owner?	N
Anti-lock brakes	N
Cruise control	N
Number of cylinders
Drive train type
Transmission type
Vehicle speed	30
DoT tire identifier
Tire size
Location of tire code
Type of tire failure code
Was defective tire repaired?
Date of manufacture
Type of child seat code
Type of restraint
Dealer's name
Dealer's telephone number
Dealer's city
Dealer's state code
Dealer's ZIP code

What is Recall?
A recall is when a product is removed from the market or a correction is made to the product because it is either defective or potentially harmful.
What is Failure?
Failure is the state or condition of not meeting a desirable or intended objective, and may be viewed as the opposite of success. Product failure ranges from failure to sell the product to fracture of the product, in the worst cases leading to personal injury, the province of forensic engineering.
What is Defect?
Non-conformance of a car component with the specified requirements, or non-fulfillment of user expectations, including the safety aspects.

Last decoded VIN:

KL1SF487J6B614498 WDD2462431J083164 WAUZZZF40LA060920 JMYLRV93W9J709023 WP1AA2A26CLA05315 WAUZZZ4DZYN010376 WDB1681091J776807 SJNJDAJ10U7021041 JMZLW19R240302941 TMBJU8NX7PY166458 W0LPD8E4XD8033476 WVWZZZ3CZGE020701

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2018 Gmc SIERRA 1500 Power Train Problems, Complaints and Defects, Recalls and Failures

2018 Gmc SIERRA 1500 Power Train Problems, Complaints and Defects

What is Recall?

What is Failure?

What is Defect?