The GMC Terrain was refreshed for the 2022 model year, while the subsequent 2023 GMC Terrain introduced a number of important updates and changes, chief of which was a new engine. Now, however, some 2023 GMC Terrain owners may experience a reduced power condition. Luckily, a possible cause for this issue has been identified, as has a fix.
According to a recent report from GM TechLink, the reduced power condition may be accompanied by any number of Diagnostic Trouble Codes (DTCs). These could include P0299 (Engine Underboost), P0101 (MAF Sensor Performance), P1101 (Intake Air Flow System Performance), or P0237 (Turbocharger Boost Sensor Circuit Low Voltage).
If the 2023 GMC Terrain in question is exhibiting reduced power and triggers any of the above DTCs, technicians are instructed to inspect the engine, specifically the anti-abrasion sleeve on the charge air inlet pipe at the turbocharger. It’s possible there may be splitting or some other type of damage to the sleeve.
If damage is found, the tech will next check the charge air inlet hose under the anti-abrasion sleeve for any possible signs of splitting or damage. A damaged charge air inlet hose could allow the hose to swell under pressure, and may cause the anti-abrasion sleeve to split. This could result in an air leak, or change the readings in the boost control system.
If the hose is damaged under the anti-abrasion sleeve, the charge air inlet pipe assembly will need to be replaced.
As GM Authority was the first to report, the 2023 GMC Terrain introduced a new engine to the nameplate, specifically turbocharged 1.5L I4 LSD gasoline engine, which replaced the turbocharged 1.5L I4 LYX gasoline engine offered for the 2022 model year. The turbocharged 1.5L I4 LSD gasoline engine is rated at 175 horsepower at 5,800 rpm and 203 pound-feet of torque at 2,000 rpm.
Under the skin, the 2023 GMC Terrain rides on the GM D2 platform. Production takes place at the GM San Luis Potosà plant in Mexico.
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Comments
Price with discounts applied. And this has a lot more torque, which is around-town power. And a lot more features for the $.
Why isn’t the Equinox affected?
It is.
https://gmauthority.com/blog/2022/12/heres-why-your-chevy-equinox-may-have-reduced-engine-power/
The Equinox problem is reported see second article in today’s reports.
RAV is super underpowered in the higher elevations. So I’m gladly to take the Terrain than that underpowered RAV where I had to rev the $hit out
Does every gmc terrain has the problem of reducing power? As so far gmc produce in 2023
That RAV4’s also available in a hybrid AWD version, and my sister is going to be buying one soon. She can’t understand why GM doesn’t offer hybrids…after her driving nothing but GM for decades.
The next issue is will the fix be applied to the 2024 units?
My advice do not buy anything from Mexico.
There are some people in this country who would like to support our own manufacturers instead of the japs
I have a 2022 Terrain 1.5L turbo, the service has been provided only by the dealer. It has 2 years of use only and the engine ligth turned on at 49000 miles (mainly highway miles). As per dealer diagnostic, they had to replace the Turbo, this time under factory warranty. My concern is about the reliability of the Turbo engine. I would like to have same feedback to determine if I can still trust this car. Do you think I should reconsider any other brand? Any other user with the same Turbo issues.?
Ugh to replacing the Turbo. We just wrote about the transmission – no codes yet, but it’s been jerking the first drive of the day, in low gear. After that it seems okay, dealership says nothing is wrong with it, took it in twice. We have a 2023 Terrain FWD SLE 1.5 L Turbo. Another person wrote about this same issue in the GMC Terrain Forum, but didn’t follow up with what his dealership said about it. Now I’m worried about your issue as well, as we only have 8500 miles on it right now. We were considering buying another car but would lose a lot of money and are just hoping for the best in the next few years. So far though, no other issues, and we haven’t had any codes, including for our transmission issue.
Now I’m worried about this as well. I’m having some lagging transmission issues, some jerking, in the first drive of the day, between first and second, second and third gear. Is anyone else having this issue? I noticed on the GMC Terrain Forum another person did mention the same thing. I’ve taken it in twice now to be checked, and they have said there isn’t anything wrong with it. I have the 2023 Terrain, SLE FWD, 1.5 L Turbo. I do like our dealership and won’t hesitate to go back, especially since we only have 8500 miles on it, but it makes us worry about the longevity of the transmission.