Issue ID | 1493102 |
Internal NHTSA # | 11122826 |
Manufacurer | General Motors LLC |
Brand | CHEVROLET |
Model | SILVERADO 1500 |
Model Year | 2018 |
File date | 27/04/18 |
Component | POWER TRAIN |
Product type code | VEHICLE |
Description of the problem | 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. |
Vehicle Mileage at Failure | 1200 |
Number of Occurences | |
Source of the issue | NHTSA WEB SITE |
City and State | LONGMONT, CO |
VIN pattern | 3GCUKREC4JGXXXXXX |
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 | |
No. of fatalities | |
Date of purchase | 29/06/24 |
Was original owner? | N |
Anti-lock brakes | N |
Cruise control | N |
Number of cylinders | |
Drive train type | |
Transmission type | |
Vehicle speed | 50 |
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 |