general problems of the 2014 GMC Yukon

Engine, check engine. Light comes on and traction turns off and stability tr a. K turns off while I'm driving, which is very dangerous now. The engine also has a very loud clicking. Ticking sound I'm not sure where it's coming from. But when I drive begins to get louder, and my traction turns off while on the highway or any road going over it?twenty miles an hour, which is extremely dangerous on texas roads.

While driving the vehicle it randomly looses engine function decreasing speed rapidly. The check engine light comes on and it says engine power reduced along with traction-off and stabilitrak- off. There was a safety recall 14v-614 that pertains to the chassis electronic module. I have had multiple shops look at the problem the last being a GMC dealer who replaced the accelerator pedal for the 2nd time but did not fix the issue. This issue began in early 2024 and vehicle has sat in driveway not being driven every since.

While driving, the vehicle display screen and lights start turning off and on. The warning lamp says " service trailer brake system" and the vehicle is unable to accelerate at all. Leaving me at a stand still in the middle of the road. It's a safely hazard because it happens suddenly and without warning and I am unable to move my vehicle so I'm just in the middle of the road. I haven't taken it in to the dealership yet. I looked online and there is a recall called " chassis electronic control module internal contamination" that meets the description of what's going on here, but when I called GMC they said there is no recall for my specific VIN, even though the recall is for my make model and year.

The contact owns a 2014 GMC Yukon. The contact stated that on four separate occasions, while driving at various speeds, the vehicle stalled. The vehicle was restarted after 10 minutes on the first occasion but started a lot sooner during the later failures. Additionally, the contact stated that at the last failure, while idling at a red light, the vehicle stalled. The vehicle was taken to a dealer; however, the dealer was unable to duplicate the failure. The manufacturer was notified of the failure. The failure mileage was approximately 192,150.

Driving normal, 65 mph 5/28/21 warnings -- check engine light comes on; stabilizer disabled; traction control disabled; error code 2138 reduced power mode. Replaced accelerator pedal with oem part # 23362231 after 4 stop/start cycles, the check engine light goes off, vehicle drives normally. 6/2/2022 normal city driving; warnings -- check engine light comes on; stabilizer disabled; traction control disabled; error code 2138; reduced power mode. After 4 stop/start cycles, the check engine light goes off, vehicle drives normally. 7/14/2022 normal city driving; warnings -- check engine light comes on; stabilizer disabled; traction control disabled; error code 2138; reduced power mode. After 4 stop/start cycles, the check engine light goes off, vehicle drives normally. 8/4/2022 -- warnings -- check engine light comes on; stabilizer disabled; traction control disabled; error code 2138 reduced power mode. Dealer attempted repairs; had vehicle one week. 8/10/2022 normal city driving; warnings -- check engine light comes on; stabilizer disabled; traction control disabled; error code 2138; reduced power mode. After 4 stop/start cycles, the check engine light goes off, vehicle drives normally. 8/12/2022 normal city driving; warnings -- check engine light comes on; stabilizer disabled; traction control disabled; error code 2138; reduced power mode. After 4 stop/start cycles, the check engine light goes off, vehicle drives normally. 8/16/2022 normal city driving; warnings -- check engine light comes on; stabilizer disabled; traction control disabled; error code 2138, reduced power mode. After 4 stop/start cycles, the check engine light goes off, vehicle drives normally. 8/22/2022 -- left at dealership; they had it for two weeks, unable to find a specific cause. Tech confirmed and found fretting on connector for throttle body and for connector going to accelerator pedal pigtail harness. Replaced throttle body and pigtail harness.

Under normal driving the vehicle will go into "reduced engine power" mode while saying service stabilitrak and stabilitrak off. Give the code referencing a 5a reference. I have replaced the ecm 2x, the accelerator pedal assembly, throttle body entire, high pressure fuel sensor problem continues without remedy. Has happened to many times to count starting in Dec 2008 to present.